Rolls GCI404 Audio Computer Interface for Installing Drive Bay, with Microphone, Line and Phono Input

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About the Rolls GCI404

The Rolls GCI404 mixes a balanced XLR Microphone signal with a 1/4" Instrument signal and a group of stereo Line Input signals. The Microphone input has +12 volt phantom power, a variable Level control from no signal to +55 dB of gain and a Balance control. The Instrument input has a Level control variable from no signal to +30 dB. The Line input group features three types of inputs; stereo RCA, stereo 1/8" and a stereo Phono preamp with grounding post and built-in RIAA equalization. These signals are mixed at the Line Level control.

A ducking feature has been included in the GCi404 which, when engaged and a signal is present at the microphone will duck the remaining input signals under the mic signal. The ducking controls are located on the rear panel and include Depth and Release Time controls. The Depth control adjusts the level of signal reduction by the ducker, the Release control varies the amount of time taken for the program material to return to its previous level.

The GCi404 requires 12VDC; a Rolls PS27 power supply is included, or the unit may be powered by a computer's internal drive power cable. A CD input has been included on the rear panel for connection to the computer's CD drive. Outputs on the unit are stereo RCA and 1/8" as well as a 4-pin header to connect to a sound card. Uses for the GCi404 include commercial audio production, home audio voiceovers, phonograph record to cd recording, etc.

Rolls GCI404 Includes

  • Rolls GCI404 Audio Computer Interface
  • PS27 Power Supply
  • Rolls 1 Year Parts and Labor Limited Warranty

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Rolls GCI404 Features

  • Microphone input with phantom power
  • Instrument input
  • RCA Line Input, Stereo 1/8" Line Input, RCA Phono Input with Ground post and RIAA equalization
  • Individual Level controls for Mic, Instrument and Line Inputs
  • Automatic "Ducking" or talkover feature for Mic Input
  • Stereo RCA, 1/8" TRS stereo, or 4-pin header connector Outputs

Rolls GCI404 Specifications

Mic Input: Input Impedance 10K Ohms bal, unbal.
Mic Input: Max Input Level +4 dBV XLR bal, +10 dBV unbal.
Mic Input: Max Gain 60 dB/XLR, 54 dB 1/4"
Mic Input: EIN -108 dB max.
Mic Input: THD <.01%
Mic Input: Phantom Power +12 Volts, 6 mA
Instrument Input: Input Impedance 50KOhms
Instrument Input: Max Gain 30dB
Line Inputs: Input Connectors RCA, 1/8" TRS Stereo
Line Inputs: Input Sensitivity 30 dB gain at 1kHz, 47KOhms Input Z
Line Inputs: Input Impedance 50KOhms
Phono Preamp: Input Impedance 50KOhms
Phono Preamp: Equalization RIAA, +/- 2dB
Phono Preamp: Ref. Gain +20 dB at 1 kHz
Line Outputs: Output Impedance 100 Ohms
Line Outputs: Max Output Level +12 dB
Line Outputs: Frequency Response + / - 1.5dB 15 Hz - 30 kHz
Line Outputs: THD 0.02% at 1KHz
Line Outputs: S/N Ratio >80 dB unweighted
Output Connectors RCA, 1/8" TRS - Stereo, 4-pin hdr.
Power 12VDC (Rolls PS27 Incl.)
Dimensions (H x W x D) 1.7" x 5.9" x 3.7" / 4.31 x 14.98 x 9.39 cm
Weight 1 lb / 0.45 kg
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