Pultec EQM-1S

Mastering version of the legendary Pultec EQP-1S

CAP2: 0 £5,779.00
£4,815.83 ex VAT
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Mastering version of the legendary Pultec EQP-1S with 0.5dB stepped gain controls.

The Pultec EQM-1S mastering eq is a modern recreation of the rare EQP-1S with added stepped controls for mastering applications and different frequency points and curves.

The Pultec EQM-1S has been meticulously reproduced from the original EQP-1S3 by Dr Steve Jackson, using only original-spec components to deliver the same stunning sound of the original vintage units. Adapted for mastering applications the EQM-1S uses Progressive-taper Elma switch controls with a 0.5dB of boost and cut for precise settings and easy recall. As a result, the gain has been reduced to 10dB boost/cut instead of the original values.

Pultec's unique design uses two bands with separate boost and cut controls that can be combined to create a resonant shelf curve. These curves are key to the Pultec sound by boosting a band without unwanted frequency build-up, offering a tight and musical sound. For mastering applications, these curves allow to add weight and foundations without boxiness and add presence or air without harshness. The EQM-1S also offers the choice between peak and shelf modes which delivers different sonic characteristics, as well as boasting different frequency points compared to the EQP-1A:

  • Low Shelf Boost/Cut: 30kcs 40kcs, 70kcs and 100kcs
  • High Bell Boost:1kcs, 2kcs, 3kcs, 4kcs, 5kcs, 6kcs, 8kcs, 10kcs, 12kcs
  • High Shelf Boost: 5kcs, 10kcs
  • High Shelf Cut: 5kc, 10kc, 20kc

  • Furthermore, their passive designs ensure that no distortion is generated by the curves. This design is compensated by a tube driven push-pull amplification placed after the equalisation stage, compensating for the loss of volume.

    Pultec EQM-1S Mastering EQ Features:

  • Boost, cut, or both - it all sounds great
  • The sound of Pultec heard on decades of amazing recordings
  • Single-channel, two-band equalizer built exactly like the original, legendary Pultec units
  • Combines the vintage character of original Pultecs with the reliability of modern designs
  • Incredibly low noise floor for a pure sound
  • Bandwidth control lets you decide how wide a range you're sculpting
  • Separate boost and cut controls provide additional creative potential
  • Adapted for mastering applications

  • Specifications:

  • Low shelf boost: +10 dB in .5 dB steps @ 30, 40, 70, 100 Hz
  • Low shelf attenuate: -10 dB in .5 dB steps @ 30, 40, 70, 100 Hz
  • Mid/high peak boost: +10 dB in .5 dB steps@ 1, 2, 3, 4, 5, 6, 8, 10, 12 kHz
  • 5, 10 kHz shelf boost, 0 - 10 dB
  • High shelf attenuate: -10 dB in .5 dB steps @5, 10, 20 kHz
  • Precision mastering-grade 21-position boost/cut rotary switches
  • Input impedance: ~600 ohms
  • Output impedance: ~50 ohms
  • Noise: 92 dB below +10 dBm
  • Distortion: ≤ 0.15% at +10 dBm into 600 ohms
  • Amplifier: Flat, 20 Hz to 20 kHz, +/- 0.5 dB
  • Tubes: 1 each - 12AU7, 12AX7, 6X4
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