The SPL Volume 8 8-Channel Volume Controller's advantages become especially apparent in combination with DAW based audio and video production systems. When changing the volume in the DAW the converters will be operating at a lower bit rate. 6dB reduction of the monitoring level is equivalent to 1 Bit less resolution. We are monitoring on an average of -24dB to -36dB below 0dBfs which means that the bit resolution is diminished by 4-6 Bits. With the Volume 8 this does not affect you. It uses a high quality 8-gang potentiometer to control in the analog domain.

The SPL Volume 8 8-Channel Volume Controller circuitry is an active design rather than a passive one. For a very good reason. When changing the volume in a passive design the impedance change affects the phase and frequency response negatively. An active design is therefore much more accurate and the far better solution.

• High end volume potentiometer and illuminated mute switch; the potentiometer controls signals directly (without VCA or DAC circuitry)
• In contrast to digital volume controls which reduce the bit resolution at lower listening levels there is no degradation in sound with an analog volume control
• In contrast to passive volume controls which alter the phase and frequency response there is no alteration in sound with an active volume control
• High quality balancing stages with extremely good common mode rejection minimize interferences and disturbances in the signal paths
• Balanced DB25 input and output connectors (Tascam-Standard)
• High quality balancing stages with extremely good common mode rejection minimize interferences and disturbances in the signal paths
• Massive, 45 mm diameter aluminum knobs ensure consistent, refined handling
• The elegant, compact housing allows for flexible desktop positioning near or under a computer monitor.
• A high quality power supply with toroidal transformer

• Inputs & Outputs
  • Instrumentation amplifier, electronically balanced (differential), transformerless
  • Nominal input level: +4dBu
  • Input impedance: =22kOhm
  • Output impedance: 600Ohm
  • Max. input level: +20dBu
  • Volume control range: -80dB bis -4dB
• Frequency range: 10Hz-100kHz (100kHz = -3dB)
• CMRR: >60dBu@1kHz
• THD & N (at +15dBu input level): >-100dBu
• S/N (A-weighted): -102dBu
• Crosstalk L/R (at 1kHz): >-80dBu
• Dynamic range: 120dB
• Power supply
  • Toroidal transformer: 15VA
  • Fuses: 250mA (230V), 500mA (115V)
  • Voltage selector: 230V/50Hz; 115V/60Hz
  • Power consumption: 15W
• Dimensions: 215 x 80 x 220mm; 8.5" x 3.1" x 8.8"
• Weight: 1.6kg/4.18lbs

• Volume 8 8-Channel Monitor Volume Controller
• Power Cable
• Manual
• Two Year Warranty