Calling Russ D
Printed From: Speakerplans.com
Category: Other Chat
Forum Name: Roots n Culture Forum
Forum Description: Talk about speaker box with other sounds here
URL: https://forum.speakerplans.com/forum_posts.asp?TID=23032
Printed Date: 27 March 2026 at 11:10am
Software Version: Web Wiz Forums 12.08 - https://www.webwizforums.com
Topic: Calling Russ D
Posted By: SAMIAM
Subject: Calling Russ D
Date Posted: 18 January 2009 at 10:19am
|
Greetings Russ, I'm interested to hear any comments, remarks, observations etc. about this modified Jah Ts pre amp outta Lion Youth Sound Geneva. Aint trying to stir things up again just like to know what all the hoooo haaaa was about |
Replies:
Posted By: russ d
Date Posted: 18 January 2009 at 10:41am
|
im playing in geneva on the 31st of this month, will find out then.
------------- Disciples on I-Tunes. Disciples on Bandcamp: http://russdisciples.bandcamp.com/ Facebook: russ disciple Youtube Channel: http://www.youtube.com/user/sargantbrown?feature=mhum |
Posted By: garlic
Date Posted: 18 January 2009 at 11:33am
| I think i saw a picture somewhere, the tubes were quite exposed, it looked like easy thing to damage...im also interested to hear how does it sound! |
Posted By: SAMIAM
Date Posted: 18 January 2009 at 12:11pm
| Anyone interested might like to check out a company called Bellari, they make a stand alone tube phono pre amp called VP129 its reasonably priced (under £100) and if used in the line stage of a Jah Ts pre amp might give the same results (sorry Joseph Redemption dont mean to rain on your parade) the unit is well built and has independant volume control and switchable "rumble" filter, i've tried it on a 4 way Tubbys pre and if revive is your business you might like the results cant say the same for modern dubwise though |
Posted By: Joseph Redhemption
Date Posted: 19 January 2009 at 9:30am
|
The modded JTS who gonna be used the 31 january by Cultural Warriors and Russ D is not the one with tube. This one has a new phase linear crossover, upgraded opamps and caps and a new and cleaner powersupply. What I expect to hear is a more precise and focused pre. Cultural Warriors didnt want tubes because they dont like tubes - why I dont know  .The real upgrade would have been tubes and PIO caps. Its not a bad idea to use this Bellari tube phono pre but watch out the price. With prices like these you are more on the Beringer side than TL Audio side. I have not tested this unit and could be a real winner. But then you have only a 'tube sound' on the deck and no more line input! And dont worry about the rain it washes all sins away  . No seriously I have published the schematic of the tube modded pre so everyone can make it - with some soldering skills. |
Posted By: garlic
Date Posted: 19 January 2009 at 11:27pm
| didnt samiam mention lion youth, im confused with cultural warriors...but sounds really interesting this what you say about new preamp of jts, i would really like to hear it, but im nowhere close to geneva...is this preamp custom or new preamp that is beein made now?how much they cost??? |
Posted By: Joseph Redhemption
Date Posted: 20 January 2009 at 8:27am
|
Its a bit confusing but let me explain. LION YOUTH own the tube modded JTS and CULTURAL WARRIORS the modded JTS with the new crossover. Russ D is going to play with Cultural Warriors end of month. And these are custom preamps. |
Posted By: RENSAAB
Date Posted: 20 January 2009 at 9:22am
Can we expect a write up of your findings Russ?  ------------- "The secret of the Scoop, what a wonderful piece of Science" - Tony ASS. "when the amplifier and voice coil are in complete synchronicity there is magic" - A Well Respected Amp Guru |
russ d wrote:Posted By: Chris I Rockas
Date Posted: 21 January 2009 at 6:40am
I'm smiling! In my preamp rack for my I Creation Soundsystem I have a Bellari tube sonic exciter and a TL Audio EQ 1. Sounds phat and sweet! I've been using this set up for more than 10 years. Don't get to play out much these days, may be that will change this year. I'll post some pics later when I have more time. ------------- Think you can, you will. Think you can't, you won't. |
Posted By: tweeter box
Date Posted: 22 January 2009 at 11:32am
is this basically a bass enhancer? ------------- PRECISION SOUND SYSTEM. Feeding the peoples needs for Roots Music. Strictly premium grade reggae and dub steppers from the early 70's to present day. |
Posted By: Chris I Rockas
Date Posted: 22 January 2009 at 11:36pm
|
Tweeter, it's a full range device with a mono sub o/p and frequency roll off. The Sub o/p is unaffected by the exciter controls. Bellari also do a solid state version. http://www.soundonsound.com/sos/1997_articles/jul97/bellarirp562.html?print=yes - http://www.soundonsound.com/sos/1997_articles/jul97/bellarirp562.html?print=yes ------------- Think you can, you will. Think you can't, you won't. |
Posted By: tweeter box
Date Posted: 29 January 2009 at 4:09pm
|
what does this thing look like?
cant find it on turnkey website! ------------- PRECISION SOUND SYSTEM. Feeding the peoples needs for Roots Music. Strictly premium grade reggae and dub steppers from the early 70's to present day. |
Posted By: Chris I Rockas
Date Posted: 31 January 2009 at 2:52pm
|
See part of Icreation's control tower. http://imageshack.us">  http://g.imageshack.us/img204/img7991ahh1.jpg/1/"> 
------------- Think you can, you will. Think you can't, you won't. |
Posted By: DC
Date Posted: 02 February 2009 at 7:35am
| Hmmm bit of a waste... using a good TLA Para EQ... and then a Behringer Graph EQ. |
Posted By: fitz
Date Posted: 02 February 2009 at 8:53am
|
So back to topic, how was the Dub Club dance??
------------- http://www.myspace.com/gangunguru |
Posted By: Chris I Rockas
Date Posted: 02 February 2009 at 9:17am
Bit of a wasted comment, maybe you're missing the point or you're just being miserable. Anyway, the pic is to show Tweeter Box the bellari unit. ------------- Think you can, you will. Think you can't, you won't. |
Posted By: DC
Date Posted: 02 February 2009 at 10:29am
| Miserable ?... just think it a shame to use some quite good components in combination with some inferior gear. No diss |
Posted By: russ d
Date Posted: 02 February 2009 at 10:36am
|
ok, so a few words about the modded pre of cultural warriors... i keep this impartial, and real... cultural warriors had`nt used the modded pre before i turned up, so we were both wondering how it would sound, first off cw have two jts pre`s, the other one unmodded, this is what they`ve been using to date, and what was setup when i arrived in the early evening to sound check, so we had a short tune up and listen so as to compare, then we swapped over to the modded pre.. well, the top end was a little sweeter, it had more gain so that could account for it, the midrange also had a little more gain to it, the top end of the midrange seemed to sound a little clearer too, but, the crossover point between the low mid and bass was totally wrong, as such i felt the low mid was lacking, so although the mid was clean it lacked some punch and to my taste was a little too sharp... the bass, this was not good, no fat bottom end at all, it was completely lacking, everyone agreed, i tried to tune the bass sweep more, add more gain, beef up the bottom end graphic more, and still it sounded no good, no definition, no weight, it sounded weak, and flappy on any sub coming thru.. also, the cutoff point was too high, so a fair ammount of low mid coming into the bass, meaning when you cut mid and tops to run just bass your getting all this mashed up biff baff from snares and low mid instruments which made it sound a mess, it was not good for the use we put these units to... we put the original pre back in the setup and played with that for the nite... how you spec things, how you graph things technically, what you replace and do, to what might conform to some sort of known range and quality, it dont mean nothing, and in the real world dont always work good... the reason you see these humps and dips on the jts pre`s graph is because his 30+ years of experience of running sound system showed him these things work, its not done by mistake, or thru lack of skill or knowledge, its done thru experimentation and testing, and as i`ve said many a time, sound system and home hifi (or even pa system) are two different things...the modded pre might sound clean and decent plugged into your studio monitors, but sound system we need weight and dynamics in the right places, this modded pre did not give us this, it possibley could do with some modification to cut off points, but in my thinking it would not make a big enough benefit to warrant the work or cost...in the case of cultural warriors one it now needs doing again to be of any use. sorry joseph, its all good to talk a good talk on a forum, you were very blunt on your thoughts and words about the jts pre, i`m sure your quite capable and knowledgable about electronics and such, but in this instance your modification was`nt up to scratch, certainly not for sound system use, so its back to school for you ! as a side note, i also heard news that the other sound who has a valve modded pre-amp did not sound good at a recent dance, well i say the pre, but maybe it was who controlled it, and as i`ve also said many, many times before, its the man at the controls that works these things to make them sound good, or bad !... so when you have these guys come on and say `the jts pre sounds sh*t`, then people really have to realise that its not always going to be the pre at fault, but the man at the control not knowing what they`re doing...i say this with no disrespect to anyone, but what i mean is that you have to take time to learn this equipment, and hone your operator skills, too many people just jump in, and expect it to all work straight out of the box with no learning involved, sorry but it dont work like that. ------------- Disciples on I-Tunes. Disciples on Bandcamp: http://russdisciples.bandcamp.com/ Facebook: russ disciple Youtube Channel: http://www.youtube.com/user/sargantbrown?feature=mhum |
Posted By: munky lee
Date Posted: 02 February 2009 at 10:36am
well, i have to say i pointed exactly the same thing. i was really suprised to see some TL Audio gear with some behringer gear in the same rack. but maybe they are not used together? no diss, just a question. mat |
Posted By: bitzo
Date Posted: 02 February 2009 at 11:03am
| hi, chris I rockas let me make some question, how do you link the bellari exciter? I mean before eq, after, before the mixer ? I'm pretty curious....... |
Posted By: Chris I Rockas
Date Posted: 02 February 2009 at 11:05am
Okay, I Creation Sound has evolved over a couple decades to include some of the components you see in the Control Tower. And it is always evolving. Just because there's a Berry or two in there doesn't mean it can't sound good. When you've heard a soundsystem with a pair of £30 Goodmans graphic eqs and Phonic and other "budget" components blow away other sounds with all the expensive stuff, you realise that the final sound is determined by the ears of the operator who plays the said system.
Take it from an engineer who has learned to stop being one when it comes to getting the desired sound.
I would like to know, what do you guys have in your reggae sound systems?
No Diss taken.
One Love
------------- Think you can, you will. Think you can't, you won't. |
Posted By: Chris I Rockas
Date Posted: 02 February 2009 at 11:08am
|
Russ D, you just hit the nail on the head, well said. ------------- Think you can, you will. Think you can't, you won't. |
Posted By: DC
Date Posted: 02 February 2009 at 12:09pm
I haven't said that using behringer is the same as can't sound good. Depends on what and how you use it. Especially for soundsystem it no big deal. And i see your point in evolving.
Same here. It's just that the 2 brands are in a different league. So getting a nice sound from the TLA and Bellari... the take the output of those and run them thru a behringer is a bit of a shame i think(assuming you run the graph EQ as main EQ, looking at the settings). If you know how to operate a sound ... tings can work with berry's.
As said, It soundsystem. I never expect high quality from soundsystem. I'd rather see such TLA sitting in a studio.
I don't have a sound. But know a bit about gear and how they sound.
|
Posted By: Chris I Rockas
Date Posted: 02 February 2009 at 12:35pm
|
DC ".....As said, It soundsystem. I never expect high quality from soundsystem....."
Actually, I do expect the system to sound "hifi like", hence the use of a mix of tubes and solid-state equipment. the Berry eq is not the last thing in the chain and I'm not, at this point, going to clarify how the Tower is set up, people will just have to come and listen to decide whether it sounds good or not.
I know that the Berry stuff is the "weakest link" but in this case it's, fortunately, not that critical to the set up; just providing some tailoring at the ends of the audio spectrum. These days it's not set as it is in the picture. ------------- Think you can, you will. Think you can't, you won't. |
Posted By: DC
Date Posted: 02 February 2009 at 1:20pm
|
Would love to hear a sound that sound HiFi like. Also have to admit...some behringer stuff can add a 'ting' when used subtle. Also wondering what's the purpose of your TLA in the setup (so not the whole setup). Just interested. I just haven't seen any sound using good quality gear in their setup. @ Russ..... told you so... you had to compensate the peak in the bottom end :-)
|
Posted By: Chris I Rockas
Date Posted: 02 February 2009 at 5:40pm
Well, I think the TLA eq sounds much nicer than lots of solid state eq. It's that "valve" sound but not the saturated distortion effect that Berry or indeed some other tube hybrid units give. I think that its because the original TLA eqs used proper high voltage power supplies for the tubes.
I just want my sound to stand out from the others but not in a" tear your head off and rip out your heart" way.
There are other soundsystems using good kit, I know that Jah Voice sound uses Klark Technics eq in their system for one, Hytal Bosrah is another sound who does as well.
I always bear in mind that good ears are the key to good sound so I try to look after mine! ------------- Think you can, you will. Think you can't, you won't. |
Posted By: Chris I Rockas
Date Posted: 02 February 2009 at 5:43pm
|
Correction to the above, I meant that Hytal Bosrah uses good quality gear in his sound, not necessarily Klark Technic. ------------- Think you can, you will. Think you can't, you won't. |
Posted By: Joseph Redhemption
Date Posted: 02 February 2009 at 9:23pm
What a cold shower . Seems like I have build sh**.I was not at the dance and cannot say anything about how it sounded or not sounded at all. I was at hospital my wife gave me a beautyfull little boy. Dad for the first time what a blessing  .RastafariBut back to subject. I dont know how it was setup but I suspect that CW still using an external crossover. From preamp TAPE OUT in the xover. They used this xover before because when a MC was singing loud there tweeters was frying. I know that they had many tweeters broken after different dances. The cause was that the mics and effect returns dont pass in the crossover thus you can have big bass and mids on the treble output of the pre. And tweeters dont like bass and mids. Thats why they used an external xover so the whole signal frenquencies - music,mics,fx - was correctly routed to their respective speakers. Now I can imagin that they still used it and that the crossover point of the external xover where too high in the bass-mid region. This was not a problem before because of this 10dB dip respective to mids - even 30dB dip respective to bass - from 110Hz to 300Hz and minus 15dB at 200Hz. You could set it at 130Hz or 250Hz you didnt hear any difference because there was like no signal at these frequencies. Lets still imagine that the xover point of the external xover was at 200Hz +-50Hz and you switch to the modded pre, then for shure you got plenty of mids in the subs thus meaning also that you limit the power of the subs because of larger bandwidth. I can not imagine another reason and Im sure of what I have build. The original xover point of the JTS is at 150Hz and mine is at 125Hz! Russ do you remember if there was an external crossover? For the other dance with the valve modded pre this was a terrible day and night. It was not just like bad luck but more like all elements against us. The dance was for the 10th earthday of Lion Youth Soundsystem. On the programm there was Kibir La Amlak, Danny Red, Zion Gates, OBF and Lion Youth. Since morning pure problems. It started with a call from Danny Red saying that his plane was cancelled. He had to catch another plane from another airport and he finnaly reach geneva after 9 hours of travel. Normally London - Geneva is a little more than an hour. Kibir La Amlak was more than five hours in the plane. When his was over Geneva they made circle over the town because of the snow. After the captain said there was no fuel anymore they did fly to Lyon, landed, refueled, takeoff, come back to Geneva, again made circle in the sky and finally landed. Same for Zion Gates just pure worries. While they where flying whe had problems with the amps. The bass amp - an JTS - that we tested 2 days before didnt work anymore when we first pluged it. Checked all fuses outside and inside,OK. Finally we found out that the rectifier bridge was dead! The we had another amp - yamaha - for the subs but didnt work either! We took the amps from another place and they worked. Did the sound check and everything worked fine. The dance start and the sound was really good for this big place - there can be more than 800 people at one time - Zion Gates takes control and then things started to go bad. Im not saying that they build a mess but they had no time to make a sound check because of these plane problems. First the mic was distording and not loud enough. Tried to change the mic, the cable, the inline TC electronic fx box, switched to the other mic input but nothing helped. After some reflexion and observing it was clear that the deck volume was way to loud and there was no headroom anymore for anything else - mics and FX. I told them many time to lower the deck volume but they wanted to shake the whole place and play very loud. We had 7Kw of sound this night! And Zion Gate, Kibir La Amlak and OBF played at maximum volume! The three leds on the pre where always on!!! And then suddenly no highs anymore comming out of the pre. What a nightmare. Finaly I found a way to bypass the pre and fed the treble amps directly with a high pass filter. And on top of this one of the cd player was not working anymore and the dat player used by Zion gate played only half of the tunes!!! I'm now 15 years in the sound system and saw many things but this was surreal. It was not a flop nor the dance of the year but the 800 people where dancing till early in the morning. |
Posted By: garlic
Date Posted: 02 February 2009 at 10:38pm
|
wow!poor you, i know how just one thing can bring you down. and then after all day of working, when time for playing comes, theres no juice in you any more. we had same thing here in zagreb, dandelion sound was guests, and lot of work around everything all day, and then when we connected our sound on of the line ins and one aux send didnt work...what a downer, we were playin all night, and people had good time, but no juice in us...its really hard to move from all the tension and just no way to relax...sorry for changing the subject, but i felt josephs agony...but after this can only be better!!!
|
Posted By: king david
Date Posted: 02 February 2009 at 10:51pm
|
some points of interest here
first i never get a good sound when i go out from tape out to another crossover. mids and tops are ok, but a bit harsher and bass is very very rough/undefined especially as its almost impossible to stop some bass coming out from mid speakers
i tried many different crossver points on the external crossover but didnt work, and the crossover is a very good bss unit that never gives any problem.
when i move to the left side the bass parametric on the jts this can solve the problem but the bass lacks "punch" then...
no problem at all when i use the preamp outputs, i already tried external crossover but it doesnt work, so stick to preamp outs and if 3 way isnt enough, better go four way instead of adding stuff to the pre.
tape out can be good for recording
after 2 years of using a jts 3 way i never broke a tweeter yet, do cultural warriors use some kind of protection to their tweeters or passive crossover? it helps!
The cause was that the mics and effect returns dont pass in the crossover thus you can have big bass and mids on the treble output of the pre. And tweeters dont like bass and mids.
well if they dont pass in the crossover...where do they pass? i never had any of these problems, also theres some equalisation in the preamp to leave out bass. it is useful for me. maybe they arent connected to the kill switches, but for sure big bass frequencies just come out from bass output of this 10dB dip respective to mids - even 30dB dip respective to bass - from 110Hz to 300Hz and minus 15dB at 200Hz. You could set it at 130Hz or 250Hz you didnt hear any difference because there was like no signal at these frequencies.
this is very interesting cause if u see jah tubbys stacks, there are scoops on bass...scoops have a dip at 100-130hz (like the pre) and mid is a sealed box, sealed boxes dnt play lower mids well, they come up at about 250hz (like the pre)...
correct me if i'm wrong...
tubbys has a soundsystem and the preamp completes the sound...he was satisfied with his sound and sold similar units around the world...
i'm trying to put more midbass with the add of 15"reflex, with lot of equalisation, it gives some more kick but i would advise its not a very hi fi thing...it works for me
|
Posted By: russ d
Date Posted: 02 February 2009 at 10:54pm
|
joseph, but you see, these are the things that can happen in sound system, its not just one element, in this case of discussion a pre-amp, but other things that can come in to play that can mess things up, with human error being quite a major factor, so when people come on a forum like this and say this and that is sh*t, or whatever, then i have to say `well, maybe its not what you think it is`... people are too quick to blame one thing without looking into all the other things... going back to the pre-amp, yes it was going to a seperate crossover, but only for mids and tops, bass was coming direct from pre-amp bass out to amps, nothing else in the way, and both modded and unmodded pre`s were connected same way... and most definitely the things i describe sounded the way they sounded... you cannot add frequencies to what is`nt there, so if your crossover point is supposed to be lower than tubbys, well i dont know what was wrong, maybe some calculations on your part, or maybe a further fault with the pre-amp, i could`nt tell you that... even so, the feed to the line out, which was going to thier outboard crossover, is still a feed from the internal crossover of the pre, so if you cut the mids and tops on pre-amp, there`s not that frequency sent to the outboard crossover to have a further effect...what they are really using that crossover for is to have some protection to the tops, because they were blowing them previously, well tubby`s pre-amp has a certain crossover point for the tops, it cant work for every type of tweeter used, and tubbs dont want to fit user adjustable filters on his pre, at the same time he can adjust these settings if needs be, but in the case of foriegn sounds that means pre-amp going back and fourth, which most guys dont want to do, so the easy way is to use an outboard crossover, wether like what cultural warriors use, or the fixed type that can go internally in the tweeter box, which is what i beleive tubbs himself does, and i know i`ve supplied such to other sounds in the past... in the end this is not a point scoring discussion, it is just about the levels we really need to go to for running a sound, and in all honesty, its not a major point that the jts pre needs any modification... if people want to spend thier money on it, then all good, but it wont be a major factor to them having a good sounding dance or not... and as the lion youth dance showed, human error came into place and made a mess of things, maybe thats what happened before modification that then made them think thier problems where to do with the pre... and you also see that despite all those problems the people still enjoy themselves, so once again any need for precision of sound just is`nt so justified... anyways, congrats on fatherhood, i did hear about that beforehand... now you wont have too much time to fiddle with pre-amps, its 16 years of looking after your kids... ha ha !... ------------- Disciples on I-Tunes. Disciples on Bandcamp: http://russdisciples.bandcamp.com/ Facebook: russ disciple Youtube Channel: http://www.youtube.com/user/sargantbrown?feature=mhum |
Posted By: mskeete
Date Posted: 03 February 2009 at 5:53am
|
jo, did you really use a phase linear crossover circuit or just phase coherent?
Also, on the valve modded pre circuit you post, I predicted a phase problem ( to myself) with the crossover, did you ever do any plots
|
Posted By: SAMIAM
Date Posted: 03 February 2009 at 6:23am
Listen to the DADDY!! According to Jonah Dan; "Russ D can make small stacks sound like big stacks"  GWAAN BSL
|
Posted By: DC
Date Posted: 03 February 2009 at 7:56am
| Joseph...congrats on the young Lion..... Ruff times ahead. Soldering iron retirement. I got 3 a dem lion cubs so i know what i'm talking about. |
Posted By: fitz
Date Posted: 03 February 2009 at 9:17am
|
About protecting the tweeters, passive filters can be added in tweeters box to high pass the signal ain't it?!! Could be cheaper & less problematic I think..... I assume a 5Khz High pass filter could be something like 15 euros...
------------- http://www.myspace.com/gangunguru |
Posted By: mskeete
Date Posted: 03 February 2009 at 9:33am
15 euros?
What power level can it hande
|
Posted By: DC
Date Posted: 03 February 2009 at 9:49am
| Just a couple of high voltage caps should do the job. But 15E... Hmmm very cheap caps |
Posted By: King Simeon
Date Posted: 03 February 2009 at 12:09pm
|
I'm not sure it's the frequencies that fry the tops, its the power. Resistors are the key, piezos take what frequency they want. Other tops might need their own protection. ------------- https://www.facebook.com/KingSimeonSound?ref=stream https://soundcloud.com/king-simeon |
Posted By: mskeete
Date Posted: 03 February 2009 at 12:22pm
|
I think you need more than just resistors. Besides piezos, a tweeters power rating is only valid for the frequency range it's speced at
Resistors are more useful for piezos and capacitors by themslefs only give a 6db per octave roll off
|
Posted By: Dub Defector
Date Posted: 03 February 2009 at 1:58pm
|
Definitely use passives for the top end.. we use some we picked on ebay for cheap..worth it just for the peace of mind, Tubbys even recommend it in the documentation you get with the pre. Spoke to keith a while back about using a crossover in combination with our 3-way and he said he knew sounds doing it but that he wouldn't recommend it as he hadn't ever heard it sounding good like that. Crossover is a big part of what the pre does. Anyways, all the rest is far to technical for me (despite my recent MSc ) but just to say that i cant see the need for Hi-Fi sound.. our pre sounds wicked, rough and rugged like it should be. It colours the sound in the right places. Vibes is the key.. Bless
------------- Rough Every Time... http://www.dubselector.co.uk - http://www.dubselector.co.uk |
Posted By: fitz
Date Posted: 03 February 2009 at 2:06pm
|
Eminence PXB-5K0 High Pass Filter £12.50 Designed to work in high-power cabinets, px crossovers are technically superior passive filters available as board-only or complete with fitted hardware for a smart, economical `factory-fit` finish. In px crossovers, current is limited when the hf level control is set to "0" on its scale (max. -9dB attenuation). A secondary benefit of the design is to form a voltage divider across the HF driver. The High-Pass Protection uses custom-built aerospace lamps as positive temperature coefficient series varistors. The
tungsten filaments effectively track the program material, dynamically
maintaining a safe maximum current level to the HF driver without
introducing distortion. This circuitry provides smooth 3:1 analog
compression during input overload conditions over 250Wrms. At full
drive level approaching clipping, the electrical attenuation to the
protected HF driver is -4.5dB. In every way, Eminence px crossovers
are a technically superior product. Features:
------------- http://www.myspace.com/gangunguru |
Posted By: DC
Date Posted: 03 February 2009 at 2:23pm
Have to be some large resistors then if it's being driven from a full range power amp.
A resistor will only damp and does not cut off (just getting higher impedance). If you run a 30 Hz with high power thru a piezo... it will fry in a sec. Roll off needed for piezo's too.
|
Posted By: Dub Defector
Date Posted: 03 February 2009 at 2:31pm
I think ours are Eminence.. not sure if it the same model but all works fine for us
------------- Rough Every Time... http://www.dubselector.co.uk - http://www.dubselector.co.uk |
Posted By: King Simeon
Date Posted: 03 February 2009 at 2:37pm
|
Expensive mistakes you remember for longer! Hehe. I think i would run away home if i saw a sound setting up with piezos fed from a bass amp! A few extra things to consider for my tops... Cheers. ------------- https://www.facebook.com/KingSimeonSound?ref=stream https://soundcloud.com/king-simeon |
Posted By: mskeete
Date Posted: 03 February 2009 at 3:24pm
|
piezos also act like capacitors. That's why you can get away with feeding them with a fuller range signal
Power Handling:400Wrms - I guess is 400w full range signal where the actual tops content (sound system use not included) isn't expected to be that much
I doubt it would handle 400w of pure tops
I heard a passive crossover with lamps (not sure if it was eminiece) but as soon as the lamp start protecting the tweeters the tops sounded like sh*t
why not use an active crossover on your tops output only to achive the same result
|