The SPL PQ Mastering Equalizer is a new revised edition of the well-known SPL PQ Mastering Equalizer Model 2050. Both units are based on our 120V Rail Technology. The new PQ features the same high-quality characteristics as the previous model. All five bands can each be activated or deactivated and you got the possibility (for every single band) to separately switch between Constant Q and Proportional Q. This kind of circuit has not yet been achieved in any other equalizer. Each channel can completely be activated or deactivated, thanks to Auto-Bypass, even automated in a freely selectable time frame. Bypass of each band and constant Q of the left side can be controlled by the right side in Link mode.

Thanks to the 1/4 Gain-Switch, you can reduce a maximum increase or attenuation of the amplitude by the factor 3/4, which regulates the potentiometer from max +/-20dB to +/-5dB cut. This gives you the possibility to perform small corrections, as common in Mastering or higher amplitudes in Proportional-Q mode. Thanks to the detented potentiometers, a precise recall is very easy to realize. You can also adjust parameters Gain, Frequency and Q in 41 steps with the detented potentiometers.

• Fully parametric, dual-channel five-band equalizer.
• 120V Rail Technology
• Each channel can completely be activated or deactivated, thanks to Auto-Bypass
• 1/4 Gain-Switch
• Bypass of each band and constant Q of the left side can be controlled by the right side in Link mode
• Detented potentiometers, a precise recall is very easy to realize
• Available in Black, , and .

• Frequency Range: 10Hz - 40kHz
• CMRR: (1 kHz, +34 dBu, Band 1-5 ON, B/C = 0 : > -82dB
• Transmission Bandwidth: (3 dB, Band 1-5 ON, B/C = 0): 10 Hz-100 kHz
  • THD & N (@ 24dBu, Constant-Q) > 107dB
  • THD & N (@ 24dBu, Proportional-Q) > 106dB
  • Noise (unweighted, at 24 dBu, Band 1-5 ON, B/C = 0) - 91dBu
  • Noise (A-weighted, at 24 dBu, Band 1-5 ON, B/C = 0) - 94dBu
  • Noise (CCIR, at 24 dBu, Band 1-5 ON, B/C = 0) - 86dBu
• Harmonic Distortion:
  • 0,2% @ 1kHz/-30dBu
  • 0,05% @ 1kHz/-20 dBu
  • 0,01% @ 1kHz/0 dB
  • 0,002% @ 1kHz/+10 dBu
  • 0,0005% @ 1kHz/+30 dBu
• Input Inpedance: 20kOhm
• Max. Input Level: + 32,5dBu
• Output Inpedance: < 600Ohm
• Max. Output Level: + 32,5dBu
• Power Consumption: max. 61W
• Fuses:
  • 230 V/50 Hz: 3,15 Amp
  • 115 V/60 Hz: 6,3 Amp
• Dimensions: 482 x 177 x 311,5 mm / approx. 19" x 7" x 12,25"
• Weight: 15,2 kg / 33,5 lb

• SPL PQ Mastering Equalizer
• Power Cable
• Manual
• Manufacturer Warranty