SPECIFICATIONS
MIC INPUT |
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Input Impedance: | 10K Ohms bal, unbal. |
Max Input Level: | +4 dBV XLR bal, +10 dBV unbal. |
Max Gain: | 60 dB/XLR, 54 dB 1/4” |
EIN: | |
THD: | <.01% |
Phantom Power: | +12 Volts, 6 mA |
INSTRUMENT INPUT |
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Input Impedance: | 50k Ohms |
Max Gain: | 30dB |
LINE INPUTS |
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Input Connectors: | RCA, 1/8” TRS Stereo |
Input Sensitivity: | 30 dB gain @ 1kHz, 47k Ohms Input Z |
Input Impedance: | 50k Ohms |
PHONO PREAMP |
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Input Impedance: | 50k Ohms |
Equalization: | RIAA, +/- 2dB |
Ref. Gain: | +20 dB @ 1 kHz |
LINE OUTPUTS |
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Output Impedance: | 100 Ohms |
Max Output Level: | +12 dB |
Frequency Response: | + / - 1.5dB 15 Hz - 30 kHz |
THD: | .02% @ 1KHz |
S/N Ratio: | >80 dB unweighted |
Output Connectors: | RCA, 1/8” TRS - Stereo, |
Dimensions: 1.7”H x 5.9” W x 3.7” D
Weight: 1 lb.
Power: 12VDC (Rolls PS27 Incl.)
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DESCRIPTION
FRONT PANEL
MICROPHONE
INPUT: Balanced XLR jack for connection to low imped- ance dynamic or condenser micro- phone.
LEVEL: Adjusts the amount of signal in the microphone preamp.
PHANTOM PWR: Header connector - connects the 12VDC phantom power for the XLR Microphone Input.
BAL: Varies the relative amount of microphone signal sent to the Right and Left Outputs.
INSTRUMENT
LEVEL: Adjusts the amount of signal in the instrument circuitry.
INPUT: 1/4” unbalanced jack for connection to instruments such as guitars, keyboards, etc.
PHONO/LINE
LEVEL: Adjusts the level of all deviced connected to the Phono or Line Inputs.
INPUT (Phono): Two RCA jacks for connection specifically to the output of a phono turntable.
INPUT (Line): Two RCA jacks for connection to line or consumer product outputs such as a CD or cassette player.
STEREO INPUT: 1/8” (3.5mm) TRS stereo jack for connection to a stereo line source such as a portable CD player or MP3 player.
GROUND: For connection to the grounding cable of a phono tuner.
DUCKING: Header connector - connects the Ducking function.
PWR: Indicates the GCi404 is properly connected to a power source.
REAR PANEL
POWER: 12VDC, 150mA. 2.1 x 5.5mm barrel jack and header port
-for connection to the Rolls PS27 AC adapter, or to the computer’s 3 1/2 inch floppy drive power cable.
DUCKING
DEPTH: Adjusts the amount of LINE signal allowed to pass to the Outputs when ducking is occuring.
RELEASE: The amount of time taken for the ducked LINE signal to return to its normal level after the sigal at the Mic Input stops.
CD INPUT Port:
LINE OUTPUTS:
STEREO OUTPUT: (1/8” (3.5mm) jack)
LINE OUTPUT (RCA):
LINE OUTPUT (Header Port):
Each of these outputs contain the Right and Left output signals.
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