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

Tim Farrant
replies: 1,169 views: 600,358
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Rtroost 2 weeks ago
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I have been collecting schematics for 30 years and 5 years ago I started make them available at my site but...

replies: 90 views: 141,464
Avatar for Synth Guru
Synth Guru 30th June 2022
Avatar for Tim Farrant

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

Tim Farrant
replies: 11 views: 56,805
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play/record 26th June 2022
Avatar for gabriel1

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

replies: 19 views: 67,747
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msbettyhunt 27th March 2020
Avatar for derletztetighte

hey there! a Studiomaster 12 into 2 (12-2b) mixing desk fell into my hands. A few scratchy pots, but generally working...

replies: 6 views: 115
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RetroFunk 25 minutes ago
Avatar for nervousfede

Hi guys, I'm working on a solid state pultec. I already fixed the problems in the gain stage (thanks to this forum), but...

replies: 7 views: 326
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NeonCQ 42 minutes ago
Avatar for guinsu

Is there any drop in replacement for the LCD screen on a PCM70? Mine is a bit hard to read. I'm assuming I can't clean off...

replies: 4 views: 213
Avatar for Northamusi
Northamusi 4 hours ago
Avatar for KorgTriton

Hey there, I just got my DMX. It turns on just fine, the LCD display works (I’ll get to this in a sec) and when plugged into my...

replies: 0 views: 44
Avatar for KorgTriton
KorgTriton 11 hours ago
Avatar for Chagalj

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

replies: 577 views: 415,213
Avatar for JoeRainey
JoeRainey 13 hours ago
Avatar for bubuz

Hello there, I'm not sure, if this is the right place to post this, but I'm trying anyway. I'd like a wiring in my guitar...

replies: 1 views: 74
Avatar for NeonCQ
NeonCQ 23 hours ago
Avatar for Zvbbvbeats

Supposedly this kid from the Ukraine found schematics, taught himself to solder, and constructed these high quality looking sssl...

replies: 4 views: 278
Avatar for u87allen
u87allen 1 day ago
Avatar for JoaT

I have an issue with my o2r. It looses it's internal sync. When it has been on long enough, it starts to drop audio playback. At...

replies: 1 views: 154
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JoaT 1 day ago
Avatar for chiasson

Hi everyone! I’m restoring an old radio and with the help of a local tech its working really well except for the speaker...

replies: 3 views: 96
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Thomas W. Bethe 1 day ago
Avatar for WanderingScholar

Hello, whenever I turn on phantom power, I get a hum around 50hz. I had this same problem a year ago and I was able to cure it by...

replies: 17 views: 811
Avatar for WanderingScholar
WanderingScholar 1 day ago
Avatar for Gruner

Hi Folks, I've been bringing this amp back to life. It isn't anything special, but I have the original cabinet and the amp has a...

replies: 6 views: 124
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Gruner 2 days ago
Avatar for diegux

Hi, working on this... what do you guys think?

replies: 1 views: 69
Avatar for Jidis
Jidis 2 days ago
Avatar for Brian M. Boykin

Just like the title says. I bought enough of these in the values needed to swap into the Hi EQ and Hi Mid EQ of the SC6000 I’m...

Brian M. Boykin
replies: 14 views: 596
Avatar for Brian M. Boykin
Brian M. Boykin 2 days ago
Avatar for sounds&words

Hi all, Ive been doing live sound at countless gigs for the last 4-5 years and when im not "out" doing sound, Im...

replies: 18 views: 1,981
Avatar for David Rick
David Rick 2 days ago
Avatar for guinsu

I've been trying to learn more about electronics building and repair to go along with trying to learn more about working in...

replies: 17 views: 434
Avatar for GLouie
GLouie 3 days ago
Avatar for LostLunch

Hi all, So I have found another thread where this issue was mentioned and, in that case, it turned...

replies: 0 views: 64
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LostLunch 3 days ago
Avatar for tech111

Hello everyone, Nice forum here with lost of super info. Wondering if i get lucky. Iam looking after a schematic of the...

replies: 16 views: 4,589
Avatar for Svedenblad
Svedenblad 3 days ago
Avatar for octopi

Does anyone have a schematic for the Omniphonic Pre 2 please? It's the fully balanced version of the Pre 1 and all inputs and...

replies: 2 views: 456
Avatar for mrterry
mrterry 3 days ago
Avatar for Mister Karloff

I have been waiting on approval for some time now. If anybody on here can help me get approved it would be greatly appreciated....

Mister Karloff
replies: 17 views: 1,483
Avatar for gyraf
gyraf 3 days ago
Avatar for ByTheSea

Hello all! Similar issues have been discussed here before, but I would appreciate to hear from other owners of active monitor...

replies: 0 views: 88
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ByTheSea 4 days ago
Avatar for Fmsk661

So I'm running a 416 through a focusrite scarlett solo 3rd gen, and I don't know if this is a problem with the mic or not since...

replies: 0 views: 97
Avatar for Fmsk661
Fmsk661 5 days ago
Avatar for lukegalea16

Hi! I have a question about the application of the AES48 Standard when it comes to using two balanced inputs in the same...

replies: 0 views: 55
Avatar for lukegalea16
lukegalea16 6 days ago
Avatar for M.S.P.

I just bought a patchbay off of ebay that I need a punch tool for. From what Ive been told it needs a tool that works with ADC...

replies: 17 views: 3,523
Avatar for Pat Maki
Pat Maki 6 days ago
Avatar for NZN

Greetings ! Not sure if the subject is in the right place , apologist in advance if its not. I am trying to give a beat-up...

replies: 5 views: 215
Avatar for Jidis
Jidis 6 days ago
Avatar for Ski spiggy

Hi all. I spent hours last night trying to find out how to build an EL84 valve bias probe. I've already built a 6L6 probe. ...

Ski spiggy
replies: 5 views: 213
Avatar for audiospecific
audiospecific 6 days ago
Avatar for jml designs

Hi, I cannot find the value of this volume knob rotary encoder. It seems like this is a common problem with these units. I have...

jml designs
replies: 14 views: 560
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jml designs 1 week ago
Avatar for andybot

Hi, attatched is a pic and the schematic for the delta 1010 power supply. Im looking to replace the 470uF 35volt and the 2200uF ...

replies: 3 views: 240
Avatar for The Count
The Count 1 week ago
Avatar for rockmanrock

My Boss SE-70 seems to run pretty hot and I'd like to do something about it. It seems to be mostly coming from a 5V regulator on...

replies: 2 views: 188
Avatar for rockmanrock
rockmanrock 1 week ago
Avatar for Ital045

Hi there, I've had a look at the other threads on the forum about this unit so hoping I haven't missed something obvious,...

replies: 2 views: 153
Avatar for Jidis
Jidis 1 week ago
Avatar for MH1234

I am looking for replacement rotary encoders for my Yamaha A4000 sampler. It is Yamaha part number V4441800, which is Alps Alpine...

replies: 4 views: 377
Avatar for CFB4
CFB4 1 week ago
Avatar for LincolnG

Hey, I wonder if anybody has come across this. I just got a new Mackie 1202VLZ4 and it seems to have quite a problem with...

replies: 49 views: 4,350
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Cantankerous 1 week ago
Avatar for vitalog2010

Dear friends, On my Ensoniq TS-10 some sounds distorted. For example: timpani, bells, organs, and some other sounds distorted....

replies: 0 views: 70
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vitalog2010 1 week ago
Avatar for syntaur

I have a TS-10 that has badly distorting effects; bypassing the effects (i.e. rsetting the effects processor to DRY) cures the...

replies: 7 views: 1,854
Avatar for vitalog2010
vitalog2010 1 week ago
Avatar for jml designs

If anyone at all has a lead or knows where to find a west German made Bertran VU meter (pics attached), I’d be forever...

jml designs
replies: 0 views: 82
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jml designs 1 week ago
Avatar for mundanetreasures

Hi, So recently I thrifted one of these alesis micro limiters and it's in great condition physically but upon getting the...

replies: 6 views: 251
Avatar for mundanetreasures
mundanetreasures 1 week ago
Avatar for part12studios

Hi everyone, I recently got my hands on a free alesis quadraverb. The unit has two problems.. 1. the display is very...

replies: 47 views: 8,643
Avatar for Muser
Muser 1 week ago
Avatar for peanutismint

I have a few old iOS devices lying around that I thought would make great dedicated FX units. I've already made a 'proof of...

replies: 9 views: 187
Avatar for Muser
Muser 1 week ago
Avatar for Julitium

Hi. I have a Spirit 328 mixing console with no boot problem. Need a Hardreseting or Firmware Flash but nothing is found files,...

replies: 3 views: 567
Avatar for AtticaEnumbrea
AtticaEnumbrea 1 week ago
Avatar for yannlu

Hi there I have here from a customer (I am audio repair tech) the MFB-522 analog drum machine. There is an burnt IC (due to...

replies: 4 views: 297
Avatar for yannlu
yannlu 2 weeks ago
Avatar for hailhail

I replaced the battery in my MPX 1 with a new battery receptacle and CR2032 Now the display isn't working right, tried factory...

replies: 2 views: 124
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hailhail 2 weeks ago
Avatar for the19thbear

Hi. I have an old reel to reel that I never use. It has an AC motor inside, which seems to be difficult to hack to do...

replies: 4 views: 227
Avatar for mbrebes
mbrebes 2 weeks ago
Avatar for Husky Squad

Hey guys. I recently received 1073 modules with a power rack and noticed that with microphone amplification, the signal that...

Husky Squad
replies: 0 views: 129
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Husky Squad 2 weeks ago
Avatar for minanapil13

hallo i replaced all the filter capacitors in my SE4400a and still get this noise can any one help me plz cable changed and...

replies: 0 views: 84
Avatar for minanapil13
minanapil13 2 weeks ago
Avatar for The Green Man

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

The Green Man
replies: 2 views: 152
Avatar for The Green Man
The Green Man 2 weeks ago
Avatar for theBF

I spent the weekend trying to understand and improve the LA-610. I think I found a first step. Appreciate hearing from others...

replies: 26 views: 10,410
Avatar for MFox13
MFox13 2 weeks ago
Avatar for HSLand

Is there such a thing as a standalone, whether portable or not, dBFS meter for studio calibration? Let me create it out of thin...

replies: 3 views: 210
Avatar for jerry123
jerry123 2 weeks ago
Avatar for ELAmental

This is sort of a last ditch effort to find a solution to this. I have had a guy building me up a 2 channel Sphere 920eq/m1200...

replies: 2 views: 158
Avatar for the fxs
the fxs 2 weeks ago
Avatar for Slutty Professor

Anyone know if the internal battery in the Lexicon mpx-1 is rechargable or not?

Slutty Professor
replies: 5 views: 864
Avatar for Tom G
Tom G 2 weeks ago
Avatar for sicijk

Hello! It's Gigi from Italy (south) This is my first post in the forum...and i'd like to say sorry -in advance- for my...

replies: 8 views: 9,806
Avatar for guinsu
guinsu 2 weeks ago
Avatar for focusbob

I recently came into a DBX 118 with a 240v sticker by the power receptacle. I tried to ID the power xformer online but no luck. I...

replies: 8 views: 208
Avatar for audiospecific
audiospecific 2 weeks ago