EQ and Anti Larsen

The SPL PassEQ is a 2-channel passive parametric equalizer designed for mastering. Its 72 passive filters perfectly meet the highest requirements in all areas of audio processing, from recording to mixing, including mastering and listening. The superior sonic qualities and musical characteristics of passive filters are ideally suited to meet the growing demands of creating multiple color sounds that are full of character. For all kinds of reasons related to the design and the advantages of the components compared to the active filters, the passive filters reach a very natural sound quality and by their harmonic treatment (THD, distortion, phase response, etc.), offering the less a clear sound alternative, which our ears often perceive as extremely attractive.

ARTICLE N° 57521
  • SPL PassEQ 2-channel passive parametric equalizer, designed for mastering.
  • The very powerful passive equalizer: 144 passive filters (72 per channel) in an equalizer.
  • Individual coils per filter.
  • Single-core reels, which means that each is wound individually on its own dedicated kernel. This excludes the sound degradation of mutual influences while improving the THD values.
  • 120V gain amplifiers designed with SPL's unique SUPRA-OPs offering a dynamic range of 141dB and an orientation speed of 200V / μs.
  • True passive coil filters deliver the authentic and characteristic sound associated with inductive components.
  • The distortion elements typical of active filters are excluded by the passive filter design.
  • Fully Analog Power Supply with Toroidal Transformer
  • Made in Germany
  • Technical Data:
  • Inputs:
  • XLR connectors, electronically balanced.
  • Impedance: Ball. 20 kOhms.
  • Max Level input: + 28dBu.
  • Outputs:
  • XLR connectors, servo-symmetric.
  • Frequency range: 20Hz to 50kHz (-3dB).
  • CMRR: -70dBu (at 1kHz, 0dBu input level and unity gain).
  • Crosstalk at 1kHz: -85dB.
  • THD & N:> 110 dBu (at input level 0dBu, 1kHz, load 100 kOhms).
  • Noise: Weighted at -115dB.
  • Dynamic Range: 143dB.
  • Max Level output: + 34dBu.
  • Power supply:
  • Voltages: 230V AC, 50Hz / 115V AC, 60Hz.
  • Toroidal transformer: 48V.
  • Energy consumption: max 40W.
  • Fuses: 230V AC: T 500mA / 115V AC: T 1A.
  • Dimensions (W x H x D): 482 x 176 x 390 mm.
  • Weight: 11.8kg.