free shipping on most orders over $249

phone: 520-447-8116


SPL Passeq Model 1650 (Black)

MSRP: $5,499.00
( saved $1,500.00 )
No reviews yet Write a Review
Adding to cart… The item has been added
  • Free Ground Shipping

  • Free Exchanges

  • Safe Payments

  • Amazing Selection

SPL Passeq Model 1650 Passive Equalizer Black

Elevate Your Sound Experience

Reviving vintage charm with a modern twist, the PASSEQ passive equalizer melds 50s nostalgia with cutting-edge 120V technology. Its unique single-filter design encapsulates the essence of classic passive equalizers from the 50s and 60s. Crafted with precision, the PASSEQ introduces three distinct frequency ranges—Low Freq, Mid Freq, High Freq—each accompanied by dedicated cut and boost controls. The output control situated in the middle allows meticulous level adjustments, offering a truly customized sonic signature.

The heart of the PASSEQ lies in its passive filter design, an artful combination of variable resistors, capacitors, and coils. Unlike active filters, this passive configuration imparts a charmingly smooth and transparent character to your audio. By leveraging the inherent characteristics of its components, the PASSEQ achieves a unique sound profile, boasting silky highs and robust bass. Carefully fine-tuned during extensive listening sessions, it delivers a musically advantageous curve, reminiscent of iconic Pultec EQs from the 1950s and 60s. This distinctive design ensures a delightful audio experience, free from the limitations of its vintage predecessors.

Embrace the audio prowess of +/-60V operation, delivering unparalleled sonic depth and detail. The PASSEQ, where classic meets innovation, offers a timeless yet forward-thinking addition to your audio toolkit.

Key Features:

  • Single-filter design for cut and boost
  • Three frequency ranges: Low Freq, Mid Freq, High Freq
  • Output control for precise level adjustments
  • 120V technology for low noise and rich sound
  • Extended HF+ band up to 35 kHz for exceptional clarity

Technical Specifications:

  • Analog inputs & output; XLR (balanced)
  • Maximum input & output gain: 32.5 dBu
  • Frequency range (-3 dB): 10 Hz – 200 kHz
  • Dynamic range: 134.5 dB
  • Operating voltage for analog audio: +/- 60 V

The PASSEQ is part of a whole new 120V Mastering Universe which will include, Iron Compressor, PQ Active EQ, DMC Mastering Console, Phonitor Headphone Amp, MC16 Monitor Controller, Gemini M/S processor, Mercury 786 kHz DAC, and the Hermes Mastering Router.

Short Description:
New 120V technology passive EQ
california pro_65:
Parametric Equalization
Solid State
Form Factor:
4 RU
Number of Channels:
Type (Signal Processors):
2 Years