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Avatar for MicroSonic

I have been collecting schematics for 30 years and 5 years ago I started make them available at my site but...

replies: 68 views: 86,507
Avatar for trondl
trondl 28th November 2018
Avatar for Tim Farrant



OK, something to spice up Geekslutz = here is where we post images of the INSIDE of audio equipment. Disclaimer; any photo...

Tim Farrant
replies: 1,078 views: 466,732
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fazeka 16th October 2018
Avatar for gabriel1

DSP Innovations has recently launched a FREE data sheet search site. The site, - Search Electronic Components ,...

replies: 16 views: 41,488
Avatar for ponzi
ponzi 27th October 2017
Avatar for Tim Farrant

Anyone who offers technical services should get themselves listed into the new member directory here... Gearslutz Directory:...

Tim Farrant
replies: 8 views: 30,304
Avatar for Aniol1349
Aniol1349 10th June 2017
Avatar for trubadoor

Hello, I'm very new to using a soldering iron, but I've soldered a few hundred cable connectors so far and put together a...

replies: 4 views: 285
Avatar for trubadoor
trubadoor 5 minutes ago
Avatar for Hardmuncle

Hi, I've recently bought a Korg VC10 vocoder, however i'm told that its a Japanese model and will require a step down...

replies: 3 views: 253
Avatar for Hardmuncle
Hardmuncle 4 hours ago
Avatar for 6dyslexicelephnt

I got a Ghost to be the centerpiece of my studio. I set up the patchbay and am able to get mixes going with outboard. It seems...

replies: 2 views: 237
Avatar for 6dyslexicelephnt
6dyslexicelephnt 4 hours ago
Avatar for Xamobillis

Greetings, i am having a problem with a bass guitar mod and i need help. so i changed the wiring in a jazzbass to to use each...

replies: 9 views: 218
Avatar for tINY
tINY 7 hours ago
Avatar for bennymc

Hi Long time lurker here. There's a bunch of stuff about KRK monitors on the web and on this forum, but I can't seem to find...

replies: 2 views: 166
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bennymc 15 hours ago
Avatar for tomhetas

Hey guys. A very kind member suggested to move my question to this thread. So recently I've bought an old Hill Audio Conecpt...

replies: 13 views: 418
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tomhetas 22 hours ago
Avatar for monomer

Hi peeps. I was wondering if someone could say something about the relation between contact surface of jacks/plugs and signal...

replies: 21 views: 992
Avatar for u87allen
u87allen 1 day ago
Avatar for wiz1der

I just acquired 2 of these things at a very decent price. They sound ok, but it seems as if somethings holding it back from...

replies: 28 views: 12,232
Avatar for Brian M. Boykin
Brian M. Boykin 1 day ago
Avatar for shortyboyboy

Hello Gang, I have a Trident 65 that has a few channel strips that don't seem to be as strong as the rest. I am trying to...

replies: 8 views: 376
Avatar for Paul Gold
Paul Gold 1 day ago
Avatar for MicDaddy

Long story short: Saw an 'As-Is' non-working MD441 on ebay for too low of a price to stay away heh Sure enough it showed up...

replies: 14 views: 8,016
Avatar for alhe
alhe 1 day ago
Avatar for trondl

Bought this machine for cheap in very good condition a year ago and plan to give it at least new caps for the psu before I even...

replies: 3 views: 242
Avatar for DrewE
DrewE 1 day ago
Avatar for BrassElephant

Hi, I'd like to add a master volume to my 64 Deluxe Reverb. I found this site a few months ago: AB763 Mods by Robinette,...

replies: 5 views: 350
Avatar for Jim Williams
Jim Williams 1 day ago
Avatar for xhavepatiencex

I have had a pair of mk012s for years, I have the in line pad for them which I rarely use. What would I need to do to turn the...

replies: 1 views: 281
Avatar for alhe
alhe 1 day ago
Avatar for alhe

I picked up one of these recently and am awaiting parts to do my own rack job. Should be a fun DIY project. I am curious if...

replies: 0 views: 240
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alhe 1 day ago
Avatar for fogetti

So I ordered an amp from Thomann which is on its' way to Tokyo but after reading all the threads here I learned that I will need...

replies: 0 views: 214
Avatar for fogetti
fogetti 1 day ago
Avatar for prophei

I am curious where I could find a suitable powersupply or powersupply circuit board with instructions that I could build up for a...

replies: 1 views: 275
Avatar for gyraf
gyraf 1 day ago
Avatar for Chaoschao99

Hello! I recently acquired a Neptune 610P powered 6 channel mixer and it has a few issues that I was hoping someone might have...

replies: 2 views: 284
Avatar for Chaoschao99
Chaoschao99 1 day ago
Avatar for Michael Lane

Hey all, I'm looking to build an XLR in/out pad pedal with little knowledge. Here's my situation. (Schematic attached) I have a...

Michael Lane
replies: 2 views: 266
Avatar for Radardoug
Radardoug 2 days ago
Avatar for itsob

I recently picked up a Tascam 564 in seemingly good working order that needs a bit of TLC & put to use. So far so good but I...

replies: 0 views: 271
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itsob 2 days ago
Avatar for Kevingrant16

Hey guys quick question which one of these laptop is good for music production Dell Alienware R17 HP ZBook G3 Acer Aspire V17...

replies: 0 views: 246
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Kevingrant16 2 days ago
Avatar for endorka

Hello folks, I recently bought a used Presonus Faderport (single fader version) from Ebay without the proper PSU. Works great...

replies: 14 views: 2,149
Avatar for Kevingrant16
Kevingrant16 2 days ago
Avatar for rabbit friendly

I want to run some tape loop experiments and wondering if you can monitor a live input from tape? For instance, I want to have a...

rabbit friendly
replies: 1 views: 275
Avatar for analogguru
analogguru 2 days ago
Avatar for bubblebash

I've been buying adapters at thrift-stores for gear that didn't come with one, and getting a precise amperage match isn't always...

replies: 1 views: 295
Avatar for JohnRoberts
JohnRoberts 3 days ago
Avatar for sameal

Hi. Awhile back i built a p.s. for my soundcraft delta board ( off suggestions from many threads with many knowledgable...

replies: 5 views: 257
Avatar for sameal
sameal 3 days ago
Avatar for mixedbyjeff

Hi all, I have an Audix MXT-500 console here - is there any chance anyone has a full schematic or knows where to find one? I...

replies: 0 views: 263
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mixedbyjeff 3 days ago
Avatar for Gik

Hi all I have been looking at low cost altrenatives for microphone preamps lately when I came upon threads raving about the...

replies: 7 views: 1,209
Avatar for jml designs
jml designs 3 days ago
Avatar for Franco the Manco

Hi, I have a pair of Alto Professional 210 s which i rent out for private parties where operation is not supervised....

Franco the Manco
replies: 1 views: 211
Avatar for Jay Rose
Jay Rose 3 days ago
Avatar for jml designs

I’ve got an old Urei LA-22 and it needs to be (apparently) terminated. I’ve seen guys put resistors across the output (was it...

jml designs
replies: 5 views: 323
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jml designs 3 days ago
Avatar for Jonk

How does one go about measuring the current of an opamp? I understand I need to change one of my multimeter leads to the...

replies: 5 views: 242
Avatar for DrewE
DrewE 3 days ago
Avatar for 3stamme

Hi everyone. I was just wondering since i have been doing some looping lately - opening up some of my maxell tapes and cutting...

replies: 9 views: 381
Avatar for Richard Crowley
Richard Crowley 3 days ago
Avatar for SeanRyder

Hey All - I have had an intermetinet short in the right channel for a little while, which seems to be related to the ratio...

replies: 2 views: 279
Avatar for SeanRyder
SeanRyder 3 days ago
Avatar for alba359

Hello guys, Any help is greatly appreciated. I have a Behringer Ultra Curve Pro 8024 with low battery warning. Can anyone advise...

replies: 2 views: 484
Avatar for francociccio
francociccio 4 days ago
Avatar for whatever17

Hi my AMDEK DMK-100 has started playing up - i'll do an audio example later - as soon as Effect is engaged, there's a...

replies: 2 views: 197
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whatever17 4 days ago
Avatar for bram

I have a nice little Audio Developments mixer, ad031. 8channel, basic filtering, 1 aux, dual compressor, inserts on the master....

replies: 7 views: 2,373
Avatar for Jim Williams
Jim Williams 4 days ago
Avatar for Whoopysnorp

I've been eyeing the Microphone Parts SDC kit lately. I have a couple of MXL603s that never get used, and either I'll mod them or...

replies: 20 views: 3,176
Avatar for playon
playon 4 days ago
Avatar for KissMyRobot

Taking inspiration from Pre-Order Colour Modular Analog Saturator but simply because I don't own a 500 series rack, I was...

replies: 40 views: 4,382
Avatar for coso
coso 5 days ago
Avatar for Brian M. Boykin

I started combining a 16/4/2 and a 24/4/2 into a 32/8/2. The 8 bus’s have 2 tape returns each giving 16 total. Plan is to track...

Brian M. Boykin
replies: 20 views: 776
Avatar for Brian M. Boykin
Brian M. Boykin 5 days ago
Avatar for Alex Specht

Been looking for output stepdown transformers online and so far the only readily available inexpensive parts ive found are the...

Alex Specht
replies: 16 views: 812
Avatar for Alex Specht
Alex Specht 5 days ago
Avatar for schelmusic

Hello, Ive recently pickup this mixer at very low cost and plan to use it with my small home studio setup. The Foldback sends...

replies: 1 views: 2,313
Avatar for EvLoutonian
EvLoutonian 5 days ago
Avatar for Pella

Hi, Im in the middle of restoring a Studer A67 that totaly lacks damper grease in the tape tension dampers. Reading up on the...

replies: 10 views: 374
Avatar for GLouie
GLouie 5 days ago
Avatar for raal

i've seen different transformers on ebay all claiming to be the original parts found in an LA2A: UTC A10, UTC A24, UTC HA100x...

replies: 4 views: 1,851
Avatar for Jim Williams
Jim Williams 5 days ago
Avatar for RBBlackstone

I am looking at a Neumann U87 for a friend. It is getting +48v, but is missing 24 volts at the zener diode. I don't have the...

replies: 8 views: 401
Avatar for mbrebes
mbrebes 5 days ago
Avatar for Mandala69

I had a problem with my Waldorf Q Rack's "shift" button so I opened my Waldorf Q Rack to see if it was a problem I...

replies: 0 views: 201
Avatar for Mandala69
Mandala69 5 days ago
Avatar for Mandala69

I had a problem with my Waldorf Q Rack's "shift" button so I opened my Waldorf Q Rack to see if it was a problem I...

replies: 0 views: 198
Avatar for Mandala69
Mandala69 5 days ago
Avatar for JohnnyBeGood510

I just got an Apollo firewire UAD interface....I wonder if this can work with my Mac Pro G5.1...since they can be connected with...

replies: 3 views: 481
Avatar for MichelleTanner
MichelleTanner 6 days ago
Avatar for u87allen

I'm a bit confused. I see some high end converters spec'ing in the 130dB range unweighted. But at 10mA the current noise(or...

replies: 31 views: 892
Avatar for u87allen
u87allen 6 days ago
Avatar for SAnthony

I am Looking for Schematics and any available Technical repair Info available on the Alesis Adat XT20. I have 2 of these with the...

replies: 7 views: 8,813
Avatar for jantoman
jantoman 6 days ago
Avatar for Jkee1400

I moved my gear to another buildling, and have crazy hum when using single coils. Like noise that is louder than the guitar...

replies: 13 views: 388
Avatar for RightOnRome
RightOnRome 6 days ago
Avatar for TeddyS

Long story shot found an old Eventide H3000SE lying on a shelf in a studio and decided to rescue it. The unit turns on, the...

replies: 9 views: 429
Avatar for Radardoug
Radardoug 6 days ago
Avatar for edoerr

I purchased a used Rokit 5 RPG2 powered speaker. It has almost no output audio. The TRS and XLR inputs act the same. I know my...

replies: 0 views: 185
Avatar for edoerr
edoerr 6 days ago


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