This unsurpassed technology is what we call VOLTAiR within our Professional Fidelity series. It lets you enjoy music on the same level as the mastering engineer.

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SPL PQ

Mastering Equalizer

“With the SPL PQ, the team around Wolfgang Neumann created and launched a Mastering EQ which outshines anything previously seen. It is hard to think of anything the SPL PQ does not perform or fulfill in perfection.”
Amazona

“You can handle the PQ in a sovereign and natural manner. Just like having all the reserves of the world. And somehow this is true. (…) In case anyone still wonders – in my opinion the PQ belongs to the world-classics among all Mastering Equalizers.”
Studio Magazin

Specifications

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

0dBu = 0.775V. Specifications subject to change without notice.