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Building a Pre Amp
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Masai View Drop Down
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Points: 418 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Masai Quote  Post ReplyReply Direct Link To This Post Posted: 28 January 2015 at 3:08pm
Originally posted by valve head777 valve head777 wrote:

Originally posted by Masai Masai wrote:

Originally posted by dj jammin dj jammin wrote:

I'm very happy with how it sounds so far though it does need a lot more testing. I want to set up a rig and compare my pre to the industry standards ie Jah Tubbys and Mostec, I got a friend who has both so some time soon I will get to do that. Friday at the little event my pre worked nicely, providing plenty of level to the amps, yeah sounded heavy :)  Special features.. well not that special but...., the mic in is a proper balanced mic preamp with xlr connector, the mic channel has an insert point so that external fx/dynamics processing can be applied to the mic signal. The mic channel also has an on/off switch so level can be set and left. The H H/M L/M L outputs are on balanced xlr's. There's a 15 band graphic eq for the music, plus four way parametric eq. The send can be sent to one of two outputs so you can have two effects and select which one with a switch. The send has a 4 band eq for shaping what goes to the fx. Nothing groundbreaking but it is very exciting that it all works as this is my first attempt at anything like this, more pics soon


ClapClapClap Well done Jamms!!! Great to see that you're already thinking outside the box and putting some of your ideas into practiceThumbs Up Keep on doing what you're doing iya and well done once again!


Protection!!
looks like he was thinking INside the box lol

Let's say he was in and out a de box iya!!

By the way..... You playing out in Brighton or West Sussex soon? London? I want to hear your valve machine in full effect.....
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valve head777 View Drop Down
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Joined: 27 July 2012
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Points: 1846 		Post Options Post Options   Thanks (0) Thanks(0)   Quote valve head777 Quote  Post ReplyReply Direct Link To This Post Posted: 28 January 2015 at 4:16pm
Originally posted by Masai Masai wrote:

Originally posted by valve head777 valve head777 wrote:

Originally posted by Masai Masai wrote:

Originally posted by dj jammin dj jammin wrote:

I'm very happy with how it sounds so far though it does need a lot more testing. I want to set up a rig and compare my pre to the industry standards ie Jah Tubbys and Mostec, I got a friend who has both so some time soon I will get to do that. Friday at the little event my pre worked nicely, providing plenty of level to the amps, yeah sounded heavy :)  Special features.. well not that special but...., the mic in is a proper balanced mic preamp with xlr connector, the mic channel has an insert point so that external fx/dynamics processing can be applied to the mic signal. The mic channel also has an on/off switch so level can be set and left. The H H/M L/M L outputs are on balanced xlr's. There's a 15 band graphic eq for the music, plus four way parametric eq. The send can be sent to one of two outputs so you can have two effects and select which one with a switch. The send has a 4 band eq for shaping what goes to the fx. Nothing groundbreaking but it is very exciting that it all works as this is my first attempt at anything like this, more pics soon


ClapClapClap Well done Jamms!!! Great to see that you're already thinking outside the box and putting some of your ideas into practiceThumbs Up Keep on doing what you're doing iya and well done once again!


Protection!!
looks like he was thinking INside the box lol

Let's say he was in and out a de box iya!!

By the way..... You playing out in Brighton or West Sussex soon? London? I want to hear your valve machine in full effect.....
Yes Masai Big up,
Melody SoulJah, my valve set, will be playing at the music café on Easter Sunday 5th April till late along side the Valve-a-tron system. not even run the set yet, amp is in my engineer's hands and i'm considering new double 18 reflex's for my Gauss units, so its all in the mix at the mo. thanks for the interest.  
Freedom of choice, choice of freedom.
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Masai View Drop Down
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Points: 418 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Masai Quote  Post ReplyReply Direct Link To This Post Posted: 28 January 2015 at 4:53pm
Cool. I don't know where the Music Café is but make sure you post the event up on here I!Thumbs Up
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app View Drop Down
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Valve head what does your sound consist of at the moment. Did we discuss this in some other thread already?Cant remember...Strictly reflex?
"what!?"
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valve head777 View Drop Down
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Originally posted by Masai Masai wrote:

Cool. I don't know where the Music Café is but make sure you post the event up on here I!Thumbs Up
Sorry Masai, its in Leicester. will hopefully be running with Roots Garden soon (Brighton)
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valve head777 View Drop Down
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Originally posted by app app wrote:

Valve head what does your sound consist of at the moment. Did we discuss this in some other thread already?Cant remember...Strictly reflex?
hi App, most is in the Mr Eddie thread. no reflex's atm, but hope to have some soon.
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Masai View Drop Down
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Points: 418 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Masai Quote  Post ReplyReply Direct Link To This Post Posted: 29 January 2015 at 12:39pm
Originally posted by valve head777 valve head777 wrote:

Originally posted by Masai Masai wrote:

Cool. I don't know where the Music Café is but make sure you post the event up on here I!Thumbs Up
Sorry Masai, its in Leicester. will hopefully be running with Roots Garden soon (Brighton)

I don't think my Oyster card will stretch that far! I've heard about Roots Garden but I have yet to reach one of their sessions. Let us know when you will be down there.

Protection.
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valve head777 View Drop Down
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Points: 1846 		Post Options Post Options   Thanks (0) Thanks(0)   Quote valve head777 Quote  Post ReplyReply Direct Link To This Post Posted: 29 January 2015 at 1:07pm
Originally posted by Masai Masai wrote:

Originally posted by valve head777 valve head777 wrote:

Originally posted by Masai Masai wrote:

Cool. I don't know where the Music Café is but make sure you post the event up on here I!Thumbs Up
Sorry Masai, its in Leicester. will hopefully be running with Roots Garden soon (Brighton)

I don't think my Oyster card will stretch that far! I've heard about Roots Garden but I have yet to reach one of their sessions. Let us know when you will be down there.

Protection.
nice Masai, be good to link with you. Smile
Freedom of choice, choice of freedom.
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dj jammin View Drop Down
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Points: 773 		Post Options Post Options   Thanks (0) Thanks(0)   Quote dj jammin Quote  Post ReplyReply Direct Link To This Post Posted: 03 February 2015 at 6:41pm
Little test mix, recorded through the mixed out of my diy pre: 

http://www.mixcloud.com/B1_Jams/reverence-preamp-test-selection-1/

hope you enjoy it..
Reverence Sound system
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miguel_gustavo View Drop Down
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Points: 3 		Post Options Post Options   Thanks (0) Thanks(0)   Quote miguel_gustavo Quote  Post ReplyReply Direct Link To This Post Posted: 17 March 2015 at 12:33am
I am building my own but, I have doubts and problem with mike pre-amp and circuit stereo to mono sum.

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Rico View Drop Down
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Points: 101 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Rico Quote  Post ReplyReply Direct Link To This Post Posted: 17 March 2015 at 7:35am
Whats your problems with mic pre? wich schemata did you use?
Stereo t mono shouldn be a problem. you could just conectt them together, you could make some passive summing with resisotrs, or there are several active solutions...
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Dazaaa View Drop Down
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Points: 14 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dazaaa Quote  Post ReplyReply Direct Link To This Post Posted: 05 December 2024 at 10:45am
Reviving this thread as i'm thinking of building my own preamp, something like the old Cuda 4 ways. Already have a nice case and a good understanding of electronics (years of tinkering and repairing stuff)
Can someone explain to me the basic block diagram of a 4 way preamp? I guess you have 3 inputs, 2 mic one phono, then EQ for each input, 4 way crossover with some kind of LED segment display for each band. what else?
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