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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: 1,164 views: 559,748
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Gainlab Audio 4 weeks ago
Avatar for MicroSonic

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

replies: 86 views: 121,649
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waveterm 25th December 2020
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DSP Innovations has recently launched a FREE data sheet search site. The site, Datasheetpro.com - Search Electronic Components ,...

replies: 19 views: 57,117
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msbettyhunt 27th March 2020
Avatar for Tim Farrant

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

Tim Farrant
replies: 9 views: 46,158
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msbettyhunt 24th March 2020
Avatar for DesolationBlvd

Lights come on and light up, but the output is extremely weak. I have to turn up an input on the mixer all the way before I hear...

replies: 6 views: 113
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brianroth 3 hours ago
Avatar for tr0x

Hi, some time ago I bought an "unknown condition" Sony DPS-R7, it arrived at my home packaged with a light cardboard...

replies: 13 views: 2,063
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JMoss1 6 hours ago
Avatar for DiodeBridge

Hi GS geekzone! I don’t get over to this forum much, because I am not much of a tech. But my AKG 451e is making some random...

replies: 6 views: 135
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kirkus 10 hours ago
Avatar for minime123

hey guys, we're trying to gather data on the frequency of failure of Siemens chips in the Korg CX3, BX3, Lambda and Delta (and...

replies: 0 views: 54
Avatar for minime123
minime123 12 hours ago
Avatar for coyotekells

Hey folks, I've just purchased a new sub and was surprised to learn that the bypass ability is not like the usual I'm used...

replies: 5 views: 183
Avatar for coyotekells
coyotekells 21 hours ago
Avatar for Antony Scott

Hi gearfriends, let me share my repair video, which may be useful for many owners of a fairly popular Otari MX-5050 BII...

Antony Scott
replies: 1 views: 77
Avatar for Radardoug
Radardoug 23 hours ago
Avatar for sirjuxtable

Hey Geekonauts, I have a MOTU 828es - how do I determine the clip level for the A/D input converters? The reason I ask, is...

replies: 6 views: 98
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sirjuxtable 1 day ago
Avatar for sifis83

Hi, Hope you are fine while you reading this. I am trying to figure out what model of mogami cables should I use for my...

replies: 2 views: 191
Avatar for Jim Williams
Jim Williams 1 day ago
Avatar for Guglielmo

Hi, I own a Studer A 810 and I am happy about its music playback sound. Alway looking for "the best" I was thinking...

replies: 3 views: 104
Avatar for SP2016
SP2016 1 day ago
Avatar for Dazzerr

Hi folks, In a couple of weeks i need to tackle a big studio wiring job. Does anyone have recommendations for wire...

replies: 21 views: 497
Avatar for tINY
tINY 1 day ago
Avatar for allbaldo

I'm a fascinated, but pretty inexperienced DIY guy. Over the years, I've amassed some odds and ends I'd like to use one day....

replies: 9 views: 1,123
Avatar for cbc6403
cbc6403 2 days ago
Avatar for Subversounds

Hi, I've recently got Proteus pcb/schematic maker and I cant find some key components for audio design. No XLR connector, no...

replies: 4 views: 1,936
Avatar for Biosynth
Biosynth 2 days ago
Avatar for koguitar

Hi all, I got an old 1959s Wurlitzer organ a few years back and want to try and take out the speakers and build a guitar amp...

replies: 0 views: 88
Avatar for koguitar
koguitar 2 days ago
Avatar for jclay85

Hi All, I've been working hard to try and get my Drip Opto 7 (stereo LA2A clone) up and running. Got the power issues fixed, and...

replies: 8 views: 1,509
Avatar for vientos00
vientos00 2 days ago
Avatar for enenra

Hey people, i've been lurking this forum for a while now, and I have a question to which i can't seem to find an answer even...

replies: 10 views: 2,494
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jacksaturn 3 days ago
Avatar for Julian J. Ludwig

Hello, dear Geekslutz I have 5 Schoeps CMC5, and I would love to do a proper recap on them with better caps than I have in...

Julian J. Ludwig
replies: 4 views: 207
Avatar for Radardoug
Radardoug 3 days ago
Avatar for JoeyM

I had the cheapest Furman you could buy 25 years ago that had the light tubes, and it served its purpose for an ADAT and Alesis...

replies: 2 views: 142
Avatar for JoeyM
JoeyM 3 days ago
Avatar for Blinddot

Hi I've recently bought an old second hand Behringer Ultragain MIC2000 dual mic/line preamp, It looks pretty nice, much better...

replies: 3 views: 8,269
Avatar for KeithRichards
KeithRichards 3 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: 11 views: 307
Avatar for oldmica
oldmica 4 days ago
Avatar for johnsmith1261

Hi! Does anyone know where I could get these? AKAI support told me that they don't have schematics/service manuals for any old...

replies: 6 views: 6,319
Avatar for Johnny T
Johnny T 4 days ago
Avatar for rlsoundservices

Hi all, I've had caps in my bins I bought for a console refurb project and just getting around to it now. Noticed the date was...

replies: 2 views: 136
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Radardoug 4 days ago
Avatar for ptfigg

Thanks for the help. Situation as follows: Circuit board has a 3 pin audio input for L + R + Ground. The supplied cable...

replies: 9 views: 151
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Radardoug 4 days ago
Avatar for johannburkard

I have a Neve R6 in which I can measure power supply hum with my DIY.RE Colour Palettes at -115 to -120 dB. Clearly not good...

replies: 27 views: 570
Avatar for Philbo King
Philbo King 4 days ago
Avatar for David Kulka

Lately I've been working on several Eventide SP2016's. All are slightly different and came to me in various states of disrepair,...

David Kulka
replies: 31 views: 5,419
Avatar for DanMcCullough
DanMcCullough 4 days ago
Avatar for kraze

I want to buy a sampler (Akai S900 in particular) made in Japan for its native 120V operation. I'm in Europe and we run our...

replies: 2 views: 139
Avatar for Robo
Robo 4 days ago
Avatar for illacov

The lowly GC2020 is a compressor that was mainly a piece found in use in live rigs and occasionally the project studio. I had a...

replies: 12 views: 15,903
Avatar for Alex Kretov
Alex Kretov 6 days ago
Avatar for The Dazzler

Hello folks. Complete novice here. I copped a Korg Poly 800 for 150. I was told it was broken only after having gotten in the...

The Dazzler
replies: 5 views: 140
Avatar for The Dazzler
The Dazzler 6 days ago
Avatar for PurpleOhmAudio

Hi everyone, I was just in the process of boxing up a variable transformer into a little test bed unit, found some nice spare...

replies: 1 views: 83
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PurpleOhmAudio 6 days ago
Avatar for PurpleOhmAudio

Hi guys, Just been refurbishing an old Meridian 101 Preamp and have changed the power caps and refreshed some other...

replies: 8 views: 372
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PurpleOhmAudio 6 days ago
Avatar for pipelineaudio

I normally use the Weller WLC or WTC 100, the orange station. I'd like to move up, but not sure who to go with...I see the...

replies: 4 views: 182
Avatar for Jim Williams
Jim Williams 6 days ago
Avatar for lunaND

Hi all! I've just recently had my A77 (1/2 track, 7.5-15ips) fixed up by a well regarded repair guy in my area. Got it home,...

replies: 13 views: 224
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kludgeaudio 6 days ago
Avatar for DJKrishna

Hi finally manged to get hold of one of these rare units - but its in very bad condition and non-functioning. Getting the user...

replies: 9 views: 566
Avatar for flextone
flextone 6 days ago
Avatar for reeserichardson

My PM1000 was delivered today and I guess UPS freight bumped it around too much- none of the monitor outs are working/echo send...

replies: 6 views: 349
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F.S. 6 days ago
Avatar for Yoski

Hi guys! I’ll try to make it short. I’d like to know if it’s possible to increase the voltage of the erase-head in my...

replies: 30 views: 385
Avatar for David Kulka
David Kulka 1 week ago
Avatar for relayjon

I’ve been in my pro studio for 10 years and it seems like every piece of gear I have is getting scratchy pots and noisy...

replies: 4 views: 222
Avatar for relayjon
relayjon 1 week ago
Avatar for Kedwards

Hope you are all well, I'm a student from SE England, I've restored a Studer A990 over the last few months, I picked it up...

replies: 4 views: 508
Avatar for Cassio2263
Cassio2263 1 week ago
Avatar for boops

Hi ,all I’m Looking the TL Audio C 5021 schematics. Thanks

replies: 1 views: 100
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boops 1 week ago
Avatar for wwl1txm

Hello All Not sure if this is the right group. I am working on restoring an old Korg DRV2000 digital reverb from the...

replies: 2 views: 774
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christoph clause 1 week ago
Avatar for headwerkn

Ok, this will sound slightly optimistic, but here goes... How hard would it be to home brew your own quadrant/Painton-style...

replies: 6 views: 7,596
Avatar for Sound Techniques
Sound Techniques 1 week ago
Avatar for oldgearguy

Just a vent because it's frustrating. <vent> Picked up a used tc 2290 recently. 4 seconds of delay but had the ME00...

replies: 1 views: 135
Avatar for Thomas W. Bethe
Thomas W. Bethe 1 week ago
Avatar for Clbraddock

Anyone know what kind of push button this is? I’m trying to find a replacement cap/cover for one of the buttons. It’s an...

replies: 4 views: 177
Avatar for Clbraddock
Clbraddock 1 week ago
Avatar for Brent Hahn

So I've gotta shorten a 24-XLR snake for a client, and my cheap little solder sucker won't survive a job like that. This will be...

Brent Hahn
replies: 13 views: 338
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originalscottyg 1 week ago
Avatar for frenchji

Hello, Not sure which thread to post this in so apologize if I'm in the wrong place! I should mention I very little about...

replies: 1 views: 264
Avatar for frenchji
frenchji 1 week ago
Avatar for Scoox

If you own an inexpensive MIDI controller (i.e. most MIDI controllers these days) you may find that some of its pots and faders...

replies: 5 views: 7,672
Avatar for fedeilc
fedeilc 1 week ago
Avatar for 5.333V

i bought an old psu for my soundcraft dlx delta some months ago. it has been working fine until the other day when i couldnt get...

replies: 94 views: 13,658
Avatar for althemusicwizard
althemusicwizard 1 week ago
Avatar for salomonander

Hey there, Im trying to run a midi connection to an extra room and setting up a new cable would be really difficult due to no...

replies: 9 views: 1,544
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Muser 1 week ago
Avatar for Deleted c117a9d

Says it's disabled... anybody know how can I register? I wanted to ask some questions about Hairball's preamp kits over there and...

Deleted c117a9d
replies: 81 views: 6,020
Avatar for studioSteve
studioSteve 1 week ago
Avatar for salminentuomas

Hello everybody! I’ve searched everywhere for the schematics for Soundcraft 400. Just got mine and needs to be fixed. Im...

replies: 0 views: 103
Avatar for salminentuomas
salminentuomas 1 week ago
Avatar for BCiggy

Hey All, I just purchased these two wonderful pieces of gear from an estate sale, but neither of them have any brand markings on...

replies: 3 views: 202
Avatar for Thomas W. Bethe
Thomas W. Bethe 1 week ago
Avatar for musichead334

I had my hs80m monitors for a long time but recently the right woofer starts distorting when I actually try to use them at a...

replies: 1 views: 113
Avatar for Thomas W. Bethe
Thomas W. Bethe 1 week ago