User manual ROLLS GCI404

[. . . ] This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Audio Computer Interface GCi404 OWNERS MANUAL INTRODUCTION Thank you for your purchase of the GCi404 Audio Computer Interface. The GCi404 mixes a balanced XLR Microphone signal with a 1/4" Instrument signal and a group of stereo Line Input signals to connect to any standard computer sound-card. 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. Uses for the GCi404 include commercial audio production, produce your own "commercial" on your computer, phonograph record to computer recording, etc. [. . . ] 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. 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: 4-pin header for connecting to a CD rom output 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. 2 50k Ohms RIAA, +/- 2dB +20 dB @ 1 kHz 100 Ohms +12 dB + / - 1. 5dB 15 Hz - 30 kHz . 02% @ 1KHz >80 dB unweighted RCA, 1/8" TRS - Stereo, 4-pin hdr. Dimensions: 1. 7"H x 5. 9" W x 3. 7" D Weight: 1 lb. Power: 12VDC (Rolls PS27 Incl. ) 5 CONNECTION Shown here is an example of possible input connections to the GCi404. · If the microphone connected to the Mic Input is a condenser microphone, move the Phantom Power jumper to the ON position. · The guitar signal may also be connected to a guitar preamp or processor before being connected to the GCi404. · Turntables must use all three connections; the Right, Left, AND the Ground terminals are required for proper operation. · Standard CD players may be connected to the RCA LINE INPUT in the same manner as the Portable CD Player. [. . . ] Once you have a desired signal level, send signals from your instrument and microphone and adjust the Levels on the GCi404 front panel for appropriate levels. DUCKING NOTE: Adjustements for the Ducking function are made on the rear panel of the GCi404. You will need access to the inside of the computer if it is mounted in a drive bay. To automatically mute all signals under your microphone, move the DUCKING jumper to the ON position. Send program material such as music to the Line Inputs. [. . . ]