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Pultec EQP-1S Matched Pair

Pultec EQP-1S Matched Pair

Matched Pair of the EQP-1S

Pultec EQP-1S Matched Pair Main
Pultec EQP-1S Matched Pair Main Pultec EQP-1S Program Equalizer, Angle

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The Pultec EQP-1S Matched Pair includes two EQP-1S with carefully selected components for true stereo operation.


The Pultec EQP-1S Matched Pair fuses elements of the rare EQP-1S3 such as the different frequency points and curves with the 3U Chassis of the highly sought-after Pultec EQP-1A.


The Pultec EQP-1S is a painstaking recreation of EQP-1S3 as it was designed over 40 years ago, lead by Dr Steve Jackson who spent years of research, using only original-spec components to deliver the authentic sound of vintage units. The only difference is the 3U Chassis. Both units are carefully matched for true stereo operation with each component selected by hand to ensure consistency of sound and behaviour. This is especially important if the units are meant to be used on stereo sources or on the mix-buss in order to maintain the original stereo information.


This rare variant of the Pultec EQ delivers the same sonic signature as the original EQP-1A such as its silky smooth top end and massive bass that have made it this EQ so desired in the audio community. However, different EQ curves and frequency points are used to offer small tonal differences and added flexibility.


Based on a two-band passive design Pultec EQs are unlike any other EQ. They feature separate boost and cut controls that can be used together to produce a resonant shelf curve. The resonant shelves are what makes the Pultec so legendary. Simply boost the area you wish to emphasise while attenuating frequency build up that occurs. On kick drum, this creates a tight and deep sound without any of the unwanted mud. The HF band has separate frequency points for the boost and attenuation controls allowing you to add air without increasing presence. In addition, the EQP-1S lets you choose between peak mode frequencies or two shelf frequencies producing different sonic characteristics. The different frequency points are:


  • 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

  • The EQP-1S uses the exact same gain make-up stage as on the EQP-1A, using a valve-driven push-pull design placed after the EQ to compensate for the loss of volume incurred with passive EQs.




    Pultec EQP1-S Matched Pair Main Features:


  • Boost, cut, or both - it all sounds great
  • Imbue your tracks with the stuff of legend
  • Thank Pultec for 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 design
  • 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
  • 30, 40, 70, 100 CPS shelf boost, 0 - 13.5 dB
  • 30, 40, 70, 100 CPS shelf attenuate, 0 - 17.5 dB
  • 1, 2, 3, 4, 5, 6, 8, 10, 12 KCS peak boost, 0 - 18 dB;
  • 5, 10 KCS shelf boost, 0 - 14 dB
  • 5, 10, 20 KCS shelf attenuate, 0 - 16 dB
  • 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 CPS to 20 KCS, +/- 0.5 dB
  • Tubes: 1 ea 12AU7, 12AX7, 6X4
  • Short Description Includes two EQP-1S with carefully selected components for true stereo operation.
    Demo in Store No
    Manufacturer Pulse Techniques
    Valve / Solid State Valve
    Q Type No
    High Pass Filter N/A
    Low Pass Filter N/A
    High Frequency Range Cut: 5kHz, 10kHz, 20kHz
    High Mid Frequency Range Boost: 3kHz, 4kHz, 5kHz, 8kHz, 10kHz, 12kHz, 16kHz
    Mid Frequency Range Peak: 1, 2, 3, 4, 5, 6, 8, 10, 12 KCS Shelf: 5, 10 KCS
    Low Mid Frequency Range No
    Low Frequency Range 30Hz, 40Hz, 70Hz, 100Hz
    Bypass No
    Channel Count Dual Channel
    Digital I/O N/A
    Chassis Rackmount

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