GAC-7 Tube Specially designed microphone cable for tube microphones 7 Conductors

Specially designed microphone cable for Tube and Stereo microphones (7 conductors!).
Ultra-flexible design and best possible electrical values for an affordable price. Vintage construction.
conductors each 0.50mm for power supply and 5 compact conductors for 2 balanced audiolines.
Hair-thin stranding, 0.05mm strands! This
stranding is used also in our 10701 Neumann cable.
Double Reussenshield for perfect RF protection!
LFOC higher grade copper at best standards for best performance.




1 = Jacket: PVC, Ø 6.2 mm / 0.24in, grey
2 = Viscose fiber coat: Counter wrapped to the shields
3 = Shield No. 1: Bare copper wires (0.10 mm / 38AWG) 100% coverage
4 = Shield No. 2: Bare copper wires (0.10 mm / 38AWG) 100% coverage
5 = Insulation A: PE, 1.50 mm / 0.06in
6 = Insulation B: PE, 1.10 mm / 0.04in
7 = Conductor A: Stranded bare copper wires 72 x 0.05 mm ( 0.14 mm²) / 72x44AWG (26AWG)
8 = Conductor B: Stranded bare copper wires 252 x 0.05 mm (0.50 mm²) / 252x44AWG (20AWG)

Technical Datas:

Conductor resistance: cond. A: < 30 Ohm/km / <= 9.1Ohm/1000ft
  cond. B: < 110 ohm/km / <= 33.5Ohm/1000ft
Shielding resistance:   > 15 gohm/km / < 4.6Ohm/1000ft
Capacitance: cond/cond: < 90 nF/km / <= 27.4nF/1000ft
  cond/shield: < 160 nF/km / <= 48.8 nF/1000ft
Test voltage: cond/cond:  500 veff
  cond/shield:  2000 veff
Temperature range: flexi-installed: -5° to +50° C
  fix-installed: -30° to +70° C

Ordering Information:

Order No.
Spool Size
20101 GAC-7 Tube 6.2 mm / 0.24 in grau 200m/656ft 13.60 kg/27.6lbs 2x200m

Factory direct orders accepted. No minimum order! Simply inquire per email
please ask for a quotation here: (link)   

Gotham Retail USD Prices: Link

please ask for a quotation here: (link)   

Please indicate your address and details, indicate product and quantity and requested delivery date.
We also provice an orderform (Doc) you can complete and email or fax to us.

Starquad wiring instruction:
In order to benefit from the Starquad concept you need to wire the 4 conductors for you balanced audio cable as follows: (See wiring diagram below)
Bundle each opposite (Star) conductor together, we made colour code easy to identify the opposite conductor. (red/pink and white/ivory each belong together.)
Pin2= red&pink (Signal+),  Pin3= white&ivory (Signal -). Pin1= shield 1&2 =Ground
Put each a few strands of each layer of the shields together to ground Pin 1 should you not have space for all shielding strands.
Cut away any spare strands from the shields and secure that no loose strands are hanging around. Use a shrinking tube to avoid short circuits.
We do not recommend putting any ground to the body shell on either side of your XLR line. The connector shell will get to ground once plugged into a receptacle.
RCA/Phono/Jack unbalanced wiring:
Many clients use our 4 conductor cable also for unbalanced interconnects. In this case we recommend to only use 2 conductor (red/pink) for your signal and put all other wires or parts thereof to ground with the shields. This will increase your noise protection! However for unbalanced application we do have our perfect unbalanced wires 1001x, and 1000x.
Stereo & 2 Channels application:
We actually do not support the idea to use a Starquad cable for stereo wiring, however it will be done and can be made with acceptable compromise regarding crosstalk and similar. If you use the cable as stereo line, use red/white for channel 1 and pink/ivory for channel 2. And again, all the shields to ground but not to the body shell of your connector.
Check our perfect stereo cables 12001/13001 or our conductor shielded Starquad 11301 for real quality stereo wiring!