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manual abstract
CONTROLS, INDICATORS AND CONNECTORS MAIN PANEL FEATURES Input Channels 1—4 1. INPUT FADER This fader controls the signal level from either of two sources: that channel's input jack or playback from the cassette recorder—depending on the position of the INPUT BUTTON (3). To ensure low distortion and to achieve the best signal-to-noise ratio, set this fader in the range of OdB ±2 scales {nominal position). When the INPUT BUTTON is up, the TRIM control also affects signal level for that channel. 2. MUTE BUTTON This push-to-engage button temporarily cuts off the signal on that channel, whether input or tape. If you wish to solo one channel, simply mute the others. 3. INPUT BUTTON In the up or INPUT position, this channel receives signal from the corresponding input jack; in the down or TRK position, this channel receives the playback signal from the corresponding track on the cassette tape, 4. TRIM CONTROL This control continuously adjusts the internal preamplifier gain over a 50 dB range. I n the full CCW position (—10), the channel input is suitable for use with most line level signals, such as those from tape recorders and most electronic musical instruments (nominal —10 dBv, 0.3V rms). As you rotate the control to the full CW position, gain increases 50 dB to accommodate the typical output of a dynamic microphone (nominal —60 dB, 1 fi\f rms). Intermediate settings are suitable for use with condenser microphones, hot guitar pickups and so forth. The best setting for any input signal level is determined by the interaction of the FADER (1) with its corresponding TRIM control. Note that this control has no effect on signals from the cassette tape; the playback level is preset for your convenience. 5. PARAMETRIC EQUALIZER These sophisticated tone controls give you maximum control over your sound. The low frequency band (LF) is continuously variable from 80 Hz to 1.2 kHz, ±15 dB; the high frequency band (HF) is continuously variable from 700 Hz to 10 kHz, ±15 dB. • If you know what frequency range is in need of adjustment, first use the sweep control to set the hinge point then set the gain control for the amount of boost or cut desired. • If you are making EQ adjustments by ear, first turn the gain control to maximum boost or cut; use the sweep control to identify the frequency range, then back off to amount of boost or cut desired. • If both sweep controls are set to overlap — the high end of the low frequency band with the low end of the high frequency band — be judicious in the use of the level controls. As the sweep controls approach the same frequency, 30 dB of boost or cut is available. That’s a whole lot more than you’ll probably ever need! 6. STEREO MASTER SELECT BUTTON In the up or MIX position, the signal from this channel will be fed to the Stereo Master Buss. Stereo imaging is dependent upon the setting of the REC INPUT Selectors (9) and the PAN CONTROL (7). I n the down or TRK position, the signal from this channel will be fed directly to the corresponding track, by-passing the Stereo Master Buss and, of course, the PAN CONTROL (7). NOTE: If you want to record “direct" by-passing the Stereo Master Buss, be sure the REC INPUT selectors are up. 7. STEREO MASTER PAN CONTROL When the STEREO MASTER SELECT Button (6) is in the up or MIX position, the Pan Control will place the signal from this channel anywhere within the stereo panorama. 8. AUX SEND The two AUX SEND controls for each input channel are post fader and post equalizer. These independent mono send circuits are designed to feed external signal processing equipment from AUX SEND Jacks 1 & 2 (29). Effects returns are then received (32) and controlled by Pan and Gain (12). The MONMIX controls (10) and their output jacks (33) may be used as a stereo send, if necessary, 9. REC INPUT These two select buttons control the routing of signals to the Stereo Master Buss, either Left or Right. When both are depressed, the PAN CONTROL (7) will be by-passed, and the record signal will be summed to Stereo Master Buss. This particular record select arrangement is very convenient for bouncing tracks. See Section 6 for instructions on ping-ponging, NOTE: These input selectors are for the Stereo Master Buss only. When you want to record “direct" turn these selectors off (up) and press that track’s Pan Select (Mix/ Trk) (6) button. 10. MONMIX These Pan and Gain controls give you a separate, independent stereo mix of the cassette recorder. Normafly, they will be used to supply a cue feed for the musicians, but they can also be used readily for a stereo effects send. 11. METER SELECT This button determines the signals displayed on the four LED Bar Graph Meters (25). In the up or MIXER position, the meters will display signal levels for the Stereo Buss (L and R), When the Stereo Master Buss is engaged, meters 1 and 2 will function, respectively, as Left and Right In the down or RECORDER position, the meters will indicate input level statu...