GAC-3 5.8mm in brown color available

27.06.2021 16:19:43 | Franz Ammann
GAC-3 Ultraflexible 3-conductor microphone cable (Neumann wire) 10701/10801

Effective immediately  is the 5.8mm diameter cable also in brown color available!

 
GAC-3 (10701/10702) 3 Conductor Microphone Cable!
GAC-3 5.8mm  (10801/10802) 3 Conductor Microphone Cable large diameter!
also known as the Neumann/Gotham Microphone Cable


Balanced double shielded analoge audio cable! Legendary vintage "Neumann cable" construction.
Industrial exklusive 3 conductor construction for Microphone, only available from Gotham Audio.
 
Why three conductors for an audio signal? Here are some answers:
Grounding/shielding: With the third conductor put to ground, together with the two shields, we have increased RF-rejection to 115dB (20dB better than standard) at 25 kHz.
Round Construction: 3-conductor constructions are round constructions, and since the cable has the freedom to move in all directions, especially on the strain relief of a connector, the cable will survive more movement cycles.
Phantom Power: The 3rd conductor can be wired as a drain wire for a reliable connection of phantom power to the microphone without affecting the shield.
Each of the three conductors consists of 96 (!!) strands of 0.05mm copper wires being the finest stranding for audio cables available which gives you improved flexibility, better signal transport and longer lifetime (moving cycles). (Heavy duty version with 5.8mm Ø also available)

Paper from "Neil A Muncy" (AES Member) 
Noise Susceptibilty in Analog and Digital Signal Processing Systems Presented at 97th AES Convention San Francisco November 1994 Revised April 13, 1995 Journal of the Audio Engineering Society Vol 43 #6 June 1995 p.435-453

AES paper:Neil A Muncy

Construction:

1 = Jacket: PVC, Ø 5.0mm, (10701-10702)
  PVC, Ø 5.8mm, (10801-10802)
2 = Shield No. 1: Bare copper wires (0.10 mm) 100% coverage
3 = Shield No. 2: Bare copper wires (0.10 mm) 100% coverage
4 = Viscose fiber coat: Counter wrapped to the twisted triple
5 = Insulation (cond): PVC, Ø 1.2 mm, white, brown and green, twisted triple
6 = Conductor: Stranded bare copper wires 96 x 0.05 mm (0.19mm²)

Technical Datas:

Conductor resistance:    < 90 ohm/km
Shielding resistance:    < 20 Ohm/km
Capacitance: cond/cond:  < 150 nF/km
  cond/shield:  < 240 nF/km
Characteristic impedance: at 10 kHz: 150 Ohm
Test voltage: cond/cond:  500 veff
  cond/shield:  2000 veff
Operating voltage:    low voltage
Temperature range: flexi-installed: -5° to +50° C
  fix-installed: -30° to +70° C

Ordering Information:

Order No.
Type
Diameter
Colour
Spool Size
Weight/
Spool
Shipping
Unit
10701 GAC-3 5.0 mm darkgray 100m 4.20 kg 4x100m
10702 GAC-3 5.0 mm black 100m 4.20 kg 4x100m
10801 GAC-3 5.8mm 5.8 mm black 100m 5.15 kg 4x100m
10802 GAC-3 5.8mm 5.8 mm brown 100m 5.15 kg 4x100m

Retail Prices  May 2021

Order No. Analog Cables Length/
Spool
Color **shipping unit CHF (Swiss Francs) € (Euro)
per spool * per meter per spool * per meter
10701
10702
GAC-3 balanced 3 conductor 100 m gray 10701
black 10702
 4x100m 201.45  2.55 178.15  2.25
10801
10802
GAC-3 balanced 3 conductor (5.8mm) new also in brown 100 m black 10801
brown 10802
 4x100m 214.60  2.70 189.75  2.40




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