Camco vortex 6, 1R stable?
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Category: General
Forum Name: Amp Forum
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URL: https://forum.speakerplans.com/forum_posts.asp?TID=26445
Printed Date: 27 March 2026 at 8:37am
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Topic: Camco vortex 6, 1R stable?
Posted By: VPAS
Subject: Camco vortex 6, 1R stable?
Date Posted: 03 May 2009 at 4:43pm
what about 4 drives bridged of a camco vortex 6, which is apparently stable to 1ohm. ive often wandered this but not given it a go through fear of killing something... in parralle mono output (can someone explain this?) the peak output is rated at 8180W and 6600W at 1omh mono parralle actully can someone just explain these ratings to me? we did try it once in mono parrallel and the output was HUGE cheers chris ------------- n^2 modulo -P = number wang |
Saul wrote:Replies:
Posted By: VPAS
Date Posted: 03 May 2009 at 4:43pm
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http://www.camcoaudio.com/Vortex.html ------------- n^2 modulo -P = number wang |
Posted By: ceharden
Date Posted: 03 May 2009 at 5:11pm
| It can drive to one ohm in parallel mono. Ie it parallels both channels so that each one is seeing 2 Ohms. This is not the same as bridged mono where the channels are run in series. |
Posted By: VPAS
Date Posted: 03 May 2009 at 5:27pm
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ah rite... so if 4 subs where run of the bridged output in para-mono mode it would pressent 1ohm to both channels but these linked in para will pressent 2ohm at the output stage???
the equation for resitances in para is 1/RT= 1/R1 + 1/R2 + 1/R3.... by this rule the 2x 1omh reststances would equal 0.5omh surely? have i missed something here? ------------- n^2 modulo -P = number wang |
Posted By: andyamp
Date Posted: 03 May 2009 at 5:52pm
Chris come on 
------------- a wise man changes his mind a fool does not. http://www.matrixamplification.com/ - http://www.matrixamplification.com/ |
Posted By: VPAS
Date Posted: 03 May 2009 at 6:11pm
what... i realy dont get it  #
what am i missing?  ------------- n^2 modulo -P = number wang |
Posted By: Elliot Thompson
Date Posted: 03 May 2009 at 6:14pm
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When you Bridge an amplifier, it will deliver more voltage so, you can use one or two 8-ohm speakers together.
Parallel Mono is good when you are using multiple speakers so the amplifier can send more current to drive four to eight 8-ohm speakers. Bridge Mono = More voltage, half the current. Parallel Mono = More current, half the voltage. Best Regards, ------------- Elliot Thompson |
Posted By: VPAS
Date Posted: 03 May 2009 at 6:45pm
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so i may be better of running 6 punishers of it in parallel mono rather then 3 a side?
unless anyone can give reasons why not to do it il give it a try next week... ------------- n^2 modulo -P = number wang |
Posted By: Elliot Thompson
Date Posted: 03 May 2009 at 7:06pm
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You could try and see which configuration sounds better to you. Current demands comes into play more when the driver's impedance dip lower than it’s nominal rating. For example three 8 –ohm speakers are 2.666666-> ohms. Pending on the impedance of the cabinet (The Punisher) the source (The music material’s frequencies) and, how the speakers react under those conditions three punishers can be 16 ohms or 1.6 ohms. Best Regards, ------------- Elliot Thompson |
Posted By: VPAS
Date Posted: 03 May 2009 at 7:08pm
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il give it a go and post up the results ------------- n^2 modulo -P = number wang |
Posted By: andyamp
Date Posted: 03 May 2009 at 7:47pm
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these Camco amps class D ?
------------- a wise man changes his mind a fool does not. http://www.matrixamplification.com/ - http://www.matrixamplification.com/ |
Posted By: VPAS
Date Posted: 03 May 2009 at 7:53pm
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class H ------------- n^2 modulo -P = number wang |
Posted By: andyamp
Date Posted: 03 May 2009 at 7:57pm
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must be an old one thanks  andy ------------- a wise man changes his mind a fool does not. http://www.matrixamplification.com/ - http://www.matrixamplification.com/ |
Posted By: VPAS
Date Posted: 03 May 2009 at 8:01pm
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they are still in production... i think they are still the flagship amp for camco.
what constitutes a class H amp andy? ------------- n^2 modulo -P = number wang |
Posted By: VPAS
Date Posted: 03 May 2009 at 8:43pm
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google reveals all... i forget all the info is just a click away ------------- n^2 modulo -P = number wang |
Posted By: ceharden
Date Posted: 03 May 2009 at 8:56pm
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Camco Vortex are 3 step class H as far as I remember. In theory it should make no difference other than the wiring whether you run three drivers per channel or switch the amp into parallel mono mode and daisy chain all 6 off one output. The disadvantage of running all 6 in one chain is that the speakon output on the amp and the first cable has to handle all of the current of a 1.6Ohm load which is quite considerable. You'll also have all the resistances of the extra speakon connections in the chain. |
Posted By: andyamp
Date Posted: 03 May 2009 at 9:28pm
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Vpas best place to look is Wikipedia I think there is some confusion in the amplifier industry as to amplifier types. I call my big amplifiers Class H (Hunt) but lots of people call them class G. Labgrupen call it tracking supply,i read some where. the problem with the class G is you can often here the booster transistors switch in.  Most amp makers make class G and call them H ------------- a wise man changes his mind a fool does not. http://www.matrixamplification.com/ - http://www.matrixamplification.com/ |
Posted By: ceharden
Date Posted: 03 May 2009 at 9:39pm
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There is lots of confusion between classes G and H. I'm still not sure which way round it is officially! Lab Gruppen are different again because they use a hybrid class AB/class D output stage. The main output stage is class AB but the rail tracking is acheived using class D (switching) techniques. I believe Yamaha do the same thing with their EEEngine or whatever it is. The biggest problem with that method is getting the switching to respond quick enough to the audio signal. It would be a good candidate to incorporate into an amp with internal DSP so you could pinch a couple of milliseconds and have 'lookahead' rail tracking. |
Posted By: andyamp
Date Posted: 03 May 2009 at 9:50pm
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Chris, Yamaha use supply tracking to. the lab use buck down converters PWM as the supply feed to the output stage however as The PWM is fed through an inductor with a free wheel diode then, the Lab is Class G an not class D hybrid the supply "tracks" You are quit correct about the response time from these down converters,and when High current is needed on bottom end,then this can influence cone control.  ------------- a wise man changes his mind a fool does not. http://www.matrixamplification.com/ - http://www.matrixamplification.com/ |
Posted By: ceharden
Date Posted: 03 May 2009 at 10:13pm
| Yeah, where does the back-EMF from the cone go on a switch-mode rail tracking amp? |
Posted By: andyamp
Date Posted: 03 May 2009 at 10:28pm
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I think, heat in the out put transistors,it may pump up the poly cap sitting on the supply poly cap feeding the collector's Interesting question Chris in my rail trackers its heat in the output stage, but it may go back up the HT rails on the down converters. need to think on that ------------- a wise man changes his mind a fool does not. http://www.matrixamplification.com/ - http://www.matrixamplification.com/ |
Posted By: snowflake
Date Posted: 03 May 2024 at 4:03pm
ancient thread revival. 6 punishers you will get same result with three a side or all six on parallel mono. where it comes in useful is with Nexo Alpha S2 subs which are a 3R nominal load. enables you to put three S2 on one amp. for some reason the club I'm working in has two of their six subs disconnected which is why I've been reading about it. |
Posted By: ceharden
Date Posted: 04 May 2024 at 1:29pm
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If Nexo had done what many other manufacturers do and bring the two drivers out to separate terminals, you could run three drivers on each side of a stereo amplifier down one bit of 4 core Speakon, with the current shared across more wire cross section and Speakon contacts... I suspect the S2 still uses 8Ohm nominal drivers but they are so heavily loaded in the bandpass configuration that you actually get an impedance much closer to the DC resistance of the coils (more like 6Ohms). |