Radial Gold Digger

Product description

The Gold Digger is a 4-channel mic selector that enables the engineer to quickly compare the sound of four different microphones while sharing the same preamp. A 'straight wire' passive circuit design is void of any audio buffers or transformers. Instead, the Gold Digger employs military grade gold contact relays to manage the switching process, thus ensuring the pristine mic signal is maintained without introducing color, distortion or artefact of any kind.

Features include four rear-mounted XLR-F mic inputs plus an XLR-m output to feed the preamp. To eliminate bleed between microphones, each channel is equipped with a 'radio style' selector switch that ensures only one mic is on at a time. The external supply provides power for the LED indicators, charges the relays and enables the Gold Digger to generate 48 volt phantom which can be turned on or off for each mic as needed. To ensure an 'honest' comparison between microphones, individual 'set & forget' trim controls let you adjust each mic level so that they produce the same relative output. Once set up, the Gold Digger not only improves workflow, but also gives the artist more confidence with the sound of the vocal, resulting in a better overall performance.

Specifications
Audio circuit type: Passive signal path with active relay switching
Maximum signal handling: +25dB
Total harmonic distortion: 0.0003%
Frequency response: 10Hz to 100kHz +/- 0.0dB
Dynamic range: >140dB
Equivalent input noise: <-115dBu
Phase deviation: < 0.001 degrees at all frequencies
Common mode rejection: -92dBu @ 60Hz
Input impedance: 600 Ohms (typical)
Output impedance: Coincides with input impedance
Features
Balanced inputs: 4 channels with on/off switch & LED indicator
Balanced output: Single output
Level control: Variable input trim on each channel
Phantom power: 48V phantom on each channel with recessed switch
XLR configuration: AES standard (pin-2 hot)
General
Construction: 14 gauge steel chassis & outer shell
Finish: Baked enamel
Size: (W x H x D) 4.5" x 2" x 6" (121 x 64 x 147mm)
Weight: 2.8 lb (1.3kg)
Power: +15V DC/400mA power supply included