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

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

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

I have an original Urei LA-4A, and the VU meter doesn't work when the unit is in gain reduction mode. The VU meter works in the...

hi. I have a rode nt1000. it have quiet flat response but I want to try it as modeling microphone with slate vms. I need owners...

This may be a dumb question... but say you have a console with a line input preamp that is connected to an interface...

Hi All, Firstly, I'm located in Honolulu Hawaii. That Being said there aren't many Tape Heads Left locally so I'm counting on...

Hello, everyone. Decided to repair my old friend, 528e voice proceccor (1996). Found something strange when started writing...

Hi, I posted this earlier on and was advised to ask...

Hi! I've been working on a Studiomaster Mixdown Classic 8. I opened it up to make sure the levels were selected properly (i.e....

Any idea what are the specs (voltage, amps, etc) of the light inside the WA76 vu meter. They have been out of stock for a...

Yes, I know they're old, but I have a JBL LSR4328P that was buzzing for a while, and now it won't completely power-up. I could...

Got myself a bag of 33uF 35v. Panasonic FR capacitors for the bias card on my Otari. But before I bother recapping the card I'd...

I want to connect the outputs of a Presonus NSB 16.8 stage box to the inputs of a Presonus HP60 headphone amp. The inputs I want...

I know that it's best to plug all audio hardware into one single wall outlet to avoid ground loops, but if I have a wall outlet...

Very short question: do a new m7 membrane has a “break-in” time ? Like a speaker.

Hello, I'm trying to fix a Roland HP 2900g, but i can't find a schematic or a service manual. A small transistor...

Hey all, I have a rolland 301 that has been having some delay issues for a while now. For some reason the delay would just stop...

I had this crazy idea to flip the capsule of a big diaphragm condenser mic 90 degree so it will be siting perpendicularly to...

Hope this is the right area for this question. I have a Crate GT-80 Amp solid state/tube, I have put it in the shop but they...

My console has been doing this for a while but basically from 150hz down, mostly in the sub bass region below 50hz I am getting...

Hi! Just curious if anybody knows if you can use the ghost tech piezos directly individually for each string and go perhaps...

Hi there! Been browsing this forum and I didn't find the info I am looking for. Got many SM57 and the alike which had all inner...

I purchased a turntable that’s been a nightmare. Margules is the company and I don’t mind mentioning them to call them out on...

If you're handy with a soldering iron and a schematic, this is a thread to show off your DIY studio gear builds. Compressors,...

Hi dear geeks, I wonder if I need LINEAR faders or VCA faders for my digital console? My name's Terence Meunier. I'm building...

Hello everyone, I am wondering if anyone here in the thread has had issues with their AWS 900 randomly rebooting? It seems to...

Hey everyone! My C800-G started making the ocean noise/white noise and based on the research I did, I will be replacing the...

Hi all - I'm trying to locate a quality schematic for the ADA 8200 8ch ADAT interface. (plenty for the 8000) I'm looking to...

Hi all. For about a year now, as I add a picture to a post, I'm only able to add the attachment using GS add attachment...

Please see image below. Does this imply that the Preamp pin P is always directly connected whether the EQ is lifted or not? Or...

Hello, I have spent weeks reverse engineering the Lexicon 300 GAL chip, finally I got it right. I am able to replicate the...

My Masterlink CDR is no longer burning properly, and of course I have a project on hold because of this. I don't want to send the...

Here are a bunch of KiCad design files for anyone who wants to use them. Some of the designs are tried and tested and some are...

Hi all, I've been installing my Alice ACM mixer over the last week following a few years where it's been sat idle with it's...

Hi my name is Joel and im currently about to finish my studies on SAE stockholm. Im writing a essay about consolltables, and in...

Hi everyone :) Based in the USA here. I bought a secondhand chameleon labs 7720 from Australia and it came with an Australian...

Hi! I own an Ibanez DMD2000 that works in all ways but modulation (i.e., the "M" in "DMD")... First, I...

So I recently got a Yamaha M406 and am planning on doing BXT403's mod Now, I thought I would put it out here before I do anything...

spring reverb IR production - did anybody try activating a metal sheet ads plate with something dirac-like impulse producing,...

Hi all - I have question about electric load best practices. I have a furman ar-15 II voltage regulator (15 amp capacity). I'm...

Hi guys! I would like to do a little mod to one of my microphone preamps and bypass all electrolytic caps in the audio path...

So I've had a Summit TLA 100A on the bench for service. Apparently the bright spark who designed this was not that bright. There...

I bought a used 900 rack with nine 903 compressors in it. It appears in good condition and powers up with an LED showing on the...

hi guys. I have a Neumann m147 kit. but when my tube will be blown (6s6b nos), I want to mod it to fet instead of lamp. why?...

I'm in the process of beefing up the UREI content on my website, and one often overlooked point that I will cover is termination....

Dear all where can I find the schematics for the Focusrite ISA220, please?

So I bought this preamp earlier this year (one of the first production pieces--payed $389 USD). I put it through its paces and...

I was silly enough to store my Fostex PM1 in a hot space for a few years, and now I finally have a use for them I have found the...

Original post is below. But I just wanted to update this in case anybody finds this in a search or whatever. The problem is...

There has been alot of talk about importance of conversion in recording chain, and lots of people want to know which AD/DA chip...

Does anyone know if the microphone-parts RK-12 (sold on microphone-parts.com for $159) and the Rayking RK12 (sold on Alibaba for...

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...