In · Stage 1
Intake & diagnosis
We power it up on an isolation transformer, listen, measure and photograph everything before a single screw turns.
- Rail voltages & ripple
- Oscillator drift test
- Written estimate
Synthesizer workshop · Kreuzberg, Berlin · Est. 2011
Forty years old.
Tuned like it’s Tuesday.
We restore vintage analog synthesizers — Moog, Roland, Korg, ARP — component by component, and sell them with a full twelve-month warranty. Bring us yours, too. We’ll find the crackle.
Model K&R-1 · Bench Oscillator
Serial 0001
VCO · 220.0 Hz
WAVE · SAW
Calibrated 30.10.2026 · ±0.5 cent
1,148Instruments restored
12 mo.Warranty, parts & labour
72 hBurn-in before sale
4Technicians, one bench each
01 / How we restore
Five stages. No shortcuts in the signal path.
Every instrument goes through the same chain, whether it’s a €400 SH-101 or a Jupiter-8. We log each step — measurements, replaced parts, before-and-after scope captures — and the logbook ships with the synth.
Stage 2
Teardown & deep clean
Boards out, keybed out. Every pot and slider is cleaned and lubricated, not just sprayed. Cases are washed by hand.
- Pots & sliders serviced
- Contacts re-tinned
- Wood cheeks oiled
Stage 3
Component work
Electrolytics recapped, tired trimmers replaced, keybed bushings renewed. Original ICs kept wherever they still sing.
- Full recap (where due)
- Battery & leak repair
- Original parts bagged
Stage 4
Calibration
Factory service manual on the bench, frequency counter in hand. 1V/oct scaling across eight octaves, filter tracking, envelopes.
- Scaling to ±0.5 cent
- Filter & VCA trim
- Voice matching (poly)
Out · Stage 5
72-hour burn-in
It stays switched on for three days in a warm room, then we recheck tuning cold. If it drifts, it goes back to stage four.
- Thermal cycling
- Final play-test
- Logbook signed
“A good restoration is invisible. You shouldn’t hear our work — you should hear the instrument the way it left the factory in 1979, minus the hum.”Jonas Albrecht · Head technician, ex-Doepfer
02 / On the bench, for sale
Ready to play, signed off, and guaranteed.
Every instrument below has been through all five stages. Prices include VAT, logbook, and a 12-month warranty. Come and play any of them in the workshop before you buy.
6 instruments
Shipping worldwide in custom crates
Trade-ins considered
Inventory changes weekly
03 / Why Kabel & Röhre
Buying vintage shouldn’t feel like a gamble.
Garantieschein · WarrantyNº KR-26
12months
Parts, labour, and the drive across town.
If anything we touched fails within a year, we fix it — free, no arguing about what counts. Inside Berlin we’ll even collect it from your studio.
Originality over “upgrades”.
No mystery mods, no swapped filters. If a part has to go, the original is bagged, labelled and returned with the instrument.
A logbook, not a promise.
Every synth leaves with a printed restoration log: what we measured, what we replaced, and scope captures before and after.
Specialists, not generalists.
We only work on analog synthesizers. Four technicians with a combined 60 years at the bench — and a drawer of NOS parts most shops don’t have.
Play before you pay.
Every instrument is plugged in and waiting in the showroom. Book an hour, bring your headphones, take your time.
04 / Book a slot
Bring it in. We’ll listen.
Drop off a repair, book a play session for an instrument in stock, or get a quote by sending us the symptoms first. We reply within one working day.
- Workshop
- Glogauer Straße 6, Hinterhof10999 Berlin-Kreuzberg · ring “K&R”, 2nd floor
- Bench hours
- Tue – Fri · 11:00 – 19:00
Sat · 12:00 – 16:00Drop-offs by appointment only - Diagnosis fee
- €65Credited in full against the repair if you go ahead.
- Typical turnaround
- 2 – 4 weeksExpress bench for touring musicians on request.
Werkstatt-
auftrag
TicketKR-0000
Ticket open. Danke!
We’ll confirm your slot by email within one working day. Bring the instrument, its power cable, and this number:
KR-0000