passive/aggressive audio/designs

showreel, custom builds, repairs - christoffer zakrisson

[christofferzakrisson]

A little prototype for a buffered volume control with differential outputs. I’m building hifi-gear, what the hell happened?! https://www.instagram.com/p/CUXRunIs4yS/?utm_medium=tumblr

[christofferzakrisson]

Buffered Y-split for Loch Ness-Calle (jah bless). A ”humdinger”, if you will. Not that fun. (på/i Split, Croatia) https://www.instagram.com/p/B-xXDy1nKm_/?igshid=1umza8q6h7ukd

[christofferzakrisson]

Deluxe Memory Man refurb for @theostocks . Reversed some horrendous mods (no before pic but there’s a bunch of hideous holes drilled in the side and top), made it true bypass, added voltage regulator (to better fit 18VDC power supplies, old stock PSU-section removed) and new power jack in the back where the AC-cord used to be. Now I need to buy (or build) one, none of my delays comes close to the fidelity of this one. (på/i Delay No More Crab Restaurant) https://www.instagram.com/p/B-ufm9eHCYx/?igshid=2a921jzfknyg

[christofferzakrisson]

Nifty control panel for Magnus Lindberg (@mlprod_vrtkl ). Re-housed Presonus faderport (with SSL-style transport buttons!). Sits nicely in a Crookwood-rack! (på/i Redmount Studios) https://www.instagram.com/p/B9Rt6qLHb_s/?igshid=1cvfezw5yv5vu

[christofferzakrisson]

Byeeee! A total P.I.T.A. to work on (if you have to replace things in the wrong part of the power amp), but when it works it’s 🤤 https://www.instagram.com/p/B8tkvd-n4CC/?igshid=47vzmgd0l295

[christofferzakrisson]

Toot! Maestro W-2 ”Sound system for woodwinds” https://www.instagram.com/p/B72J1_qnpR8/?igshid=qwyj22c4l8qw

[christofferzakrisson]

for the connoisseur... https://www.instagram.com/p/B391ekiH0H7/?igshid=128arvpmhu6lg

[christofferzakrisson]

electronic instrument control unit. custom built 32-channel (stereo) switching unit + mixer for keyboard/synthesizer-setup in recording studio. true bypass relay switched “solo” function (single channel cancel previous). no internal volume control, only mute. blendable fx-loop. headphone amp. balanced output.

teak enclosure by henrik höckert.

client: northbound studios, 2018

[christofferzakrisson]

stocking up on gar2520 opamps for repairs and custom builds. great kits, pretty tight PCBs but surprisingly easy to build.

[christofferzakrisson]

tremolo pedal, based on Schaller circuit, modified LFO-shape, selectable speed range (0,5Hz to 4Hz -> 4Hz to 15Hz), trimmer for +-12dB boost.

funky paint-job was an accident. happy accident, though.

client: kalle malm, 2017

[christofferzakrisson]

passive monitor controller w. 4+1 (DB25+XLR in the back) stereo outputs, 1 balanced stereo input, 1 unbalanced stereo input, switches for in- and outputs, volume control

client: klas åhlund, 2014