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About Scratchbox
Specifications
Detailed Features
Accessories
STANDARD FEATURES

10 inch width - 9 units - mixing panel.
Front- and top-panel in elegant matt silver paint.
Aluminium anodised smooth scratchplate, no obstructions by any paint of text print on the panel.
Front-handles to carry the mixer and to avoid unwanted moving of the buttons during use and during connection of the mixing panel.
Same height as the Technics famous SL-1200/1210 turntables.
4 Input channels
-2 Phono inputs on gold plated RCA connectors.
-4 Line inputs CH1 + CH2 + CH3/FX-return + CH4/Session/Backtape-in.
-1 Microphone input on COMBO (XLR-JACK) connector.
Outputs:
-2 Master outputs on RCA connectors.
-Symmetrical output with XLR connectors on master 1.
-1 Aux/FX-send output on RCA connectors.
-1 Record/aus/session output on RCA connectors.
-1 Strong head-phones output on JACK (6,35mm - 1/4 inch) and mini-JACK (3,2mm - 1/8 inch).
Control functions channels 1 and 2:
-Phono/line input select switch.
-Channel 1-2 reverse switch.
-Rotative level control per channel.
-Triple tone control with short faders, for very fast manipulation of the audio spectrum (+10dB/-21dB).
-Aux/FX-send push button for routing the signal via external effects-units.
-Wet/dry fader to mix between signal without effect and signal with effect.
-Short balance fader.
-CUT-switches with very low operating force, placeable in 8 directions. Can be used in 3 modes:
   Momentary cut
   Latching cut
   Double speed cut
-Easy slide 45mm fader specially designed for high speed operating.
-Channel fader reverse switch with LED indication at the front.
-Channel fader curve control with potentiometer at front.
-Easy slide digital optical long life time crossfader, with friction control screw and cut-in distance control screws, to fade between channel 1 and 2.
-Crossfader reverse switch with LED indication at the front.
-Crossfader curve control with potentiometer at front.
-PFL channel 1 and 2 ON/OFF button
-PFL select fader, to create a mixed signal of channel 1 and 2 in the headphones.
All volume- and curve-controls on channel 1 and 2 are done by a microcontroller controlled VCA.
The channel-faders, cross-fader and cut-switches can easily be replaced via the top-panel after lifting of the scratchplate.
Control functions channel 3:
-Mic/line input select switch.
-Rotative level control.
-0dB LED to adjust the level.
-Dual band equalizer with rotative potmeters.
-PFL ON/OFF button.
-Routing switch to route the signal to channel 1 or 2 or directly to the mix.
-Short channel fader for fast operation.
Channel 4:
-Rotative level control
Soft touch rotative knobs for better grip on all rotative potmeters.
Very smooth, extremely strong, metal plated matt chrome coloured knobs on all channel faders, cross fader and PFL-select fader.
Mode switch to select mono or stereo operation of the mixing panel, ideal for working with records with different left and right tracks.
Two master outputs with rotative volume control (also useable as monitor or booth output)
Two bright VU-meters to show the levels of the inputs or mixed signal.
Normal and upside down text print at the back panel to facilitate connection.
Soft rubber anti-slide buttons at the bottom of the mixer.
Power switch on the back of the panel, to avoid accidentally switching off the panel.
External power supply, to reduce disturbances.
 
OPTIONS

Optical high quality channel- or crossfader
Digital session/aux/backtape input via RCA connector with level control at the back panel
Digital record/aux/session output via RCA connector at the back panel
 
SPECIFICATIONS

Inputs Input sensitivity Signal / Noise Remarks
2xPHONO 5.2mV/50kΩ < -80dB RIAA correction
4xLINE 500mV/50kΩ < -88dB
1xMIC DJ assymm. 8.0mV/1.2kΩ < -79dB Bass cut off filter
1xMIC DJ symm. 8.0mV/22kΩ < -79dB
Outputs
2xMaster assymm. 775mV/10kΩ  
1xMaster symm. 1.55V/600Ω  
1xAux/Session/Rec 775mV/10kΩ  
1xPhones 7.7V/600Ω Ph. 600Ω-2kΩ
 
THD: <0.02%
Tone controls:
-Bass +10dB/-21dB @ 100Hz
-Mid +10dB/-21dB @ 1kHz
-High +10dB/-21dB @ 10kHz
Tone controls on Channel3:
-Bass +/-13dB @ 100Hz
-High +/-13dB @ 10kHz
Subsonic filter: -25dB @ 10Hz
Power source:
-Standard with an AC-adapter of: 230V / 50Hz-60Hz
-On request: 100V-117V / 50Hz-60Hz
Power consumption:
-OFF=8,7VA
-ON=22VA
Approbation: CE
Dimensions:
-Front: 254mm x 400mm (10" x 9HE)
-Chassis: 224mm x 398mm x 84mm (same height as Technics SL-1210 MKII)
Weight: 4.07kg
Images:
Front Panel
Front View
Back View
Side view
Fader Curve
Cross Fader Curve