A.S. Audio & Akustik

Name: A.S. Audio & Akustik
Address: Eisenstadt, 7000, AT
Telephone: +4367764789319

Startseite
Österreich
Eisenstadt
A.S. Audio & Akustik

Audio electronics repair, modification and custom builds. Room acoustics measurements, planning and consulting.

18/09/2026

Developed by Rupert Neve himself, the Focusrite ISA 110 is without a doubt one of the most legendary mic preamps in recording history. Originally built for Focusrite’s massive Forte and Studio consoles, these modules were repackaged into a two-channel, 1U rackmount unit in 1988 - the ISA 115 HD.

This rare jewel arrived on the bench with burnt power supply resistors, faulty switches, and a very crude "modification" that needed undoing.

The biggest headache? The ITW push-button switches were ALL broken! Even a few of the usually indestructible ELMA switches had to be replaced. Finally, tracking down the +48V phantom power issue caused by that previous mod was a true head-scratcher...

There is nothing quite like getting these classic, heavy-duty circuits back to their full glory!

26/08/2026

The Ampeg B2 is a nice and straight forward bass amp with a 15" speaker for some serious low end. While the basic construction is bulletproof, there is one design flaw: the potentiometer k***s and especially the sliders of the graphic EQ are rather exposed so you rarely see a B2 with all controls still intact.
This was also the case with the unit that arrived here with half the controls missing. I replaced the potentiometers but left the sliders and just 3D printed new k***s as they were working fine. A few other touch ups and this B2 is ready to rumble again!

21/08/2026

This pair of Genelec 8240A arrived here with some serious problems. Weird buzz and popping when switched on and then a constant, pretty loud noise floor. I did some ESR measurements of the electrolytic capacitors and they were all over the place. It turned out ALL of the small SMD electrolytics had to be replaced to fix the issues! Pretty tedious and not a very fun thing to do, but the Genelecs are now silent again (at least when they need to be....😄).

02/06/2026

I just delivered these custom patchbays to a happy client.
The main motivation to do a custom project instead of choosing an off the shelf solution was quality and flexibility. Instead of the cheap chinese knockoffs you see in a lot of gear these days, high quality Neutrik connectors were used throughout. And because setups and requirements in studios are sometimes changing, the XLR patchbays can be reconfigured. They are based around modules with four channels each, which can be installed either way. So it's possible to have inputs and outputs on the front panel as needed.

27/05/2026

What do you get when you combine one of the most legendary tube preamplifiers with one of the most legendary compressors and put it in a box? The Universal Audio 6176! 😎

Apart from a mischievous IDC connector, this unit had a pretty weird problem. One of the potentiometers was ever so slightly conductive to the chassis, that it would cause the sidechain to act up from time to time. Relatively easy fix, but pretty tricky to track down....

18/05/2026

The Marshall JCM 2000 has a bad reputation caused by a less than ideally designed ciruit board that causes a few problems. Most notably, the PCB is turning conductive ever so slightly between closely spaced traces. This not only increases hum, but also causes the bias to drift, which can ultimately destroy the power tubes!
It is possible to modify the PCB to eliminate these problems, but there is another possibility: Valvetubeguitaramps.coms has a replacement for the complete main PCB available, that fixes all the problems the original had and even adds a few more improvements. The installation was a breeze and the amp works flawless again!

Apart from the technical issues, I have to say this is a fabulous sounding amp with incredible creamy overdrive sound!

27/03/2026

East German manufacturer Lorenz made some incredible tube amplifiers back in the days and the MV330, also known as V240 is no exception. While the better known ÜV300 was designed as a mic preamp, the MV330 was a universal amplifier used for line signals or after passive filter circuits. The sound is pretty clean, while still adding some nice saturation in the lower mids that works really nice on the mixbus!

I received a pair of these from a client some time ago for maintenance. While they were in pretty good shape, they still needed some work like retensioning and cleaning tube sockets or changing a noisy tube. And since they deserve better than just the usual run-of-the-mill connector panel, I built nice wooden enclosures with leather handles and aluminium backplate for them. 😎

03/03/2026

The Neve 31105 is one of the lesser known modules and was used in their 8078 consoles produced in the late 70s. Neve's naming convention is not the easiest to follow, but these are basically 1081 with some minor differences like indication LEDs or seperate gain controls for the Mic/Line inputs.

This beautiful (but unfortunately pretty crudely racked) pair that landed on my workbench had a very nice modification: the standard class AB output amplifier was replaced with a "Phoenix Class A" which brings the sound a little closer to the "beefier" 1073.
There was some stuff to fix like a few broken solder joints, rewired polarity switch, dried up electrolytics... But the way these modules are laid out and build makes them a pleasure to work on!

Adresse

Eisenstadt
7000

Telefon

+4367764789319

Website

http://asaa.at/

Benachrichtigungen

Erfahren Sie als Erste/r von Neuigkeiten und Aktionen: Wir schicken Ihnen eine E-Mail, wenn A.S. Audio & Akustik etwas veröffentlicht. Ihre E-Mail-Adresse wird für keinen anderen Zweck verwendet, und Sie können sich jederzeit abmelden.