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Pultec EQM-1S Mastering Equalizer

Mastering version of the renowned EQP-1S 3U equalizer
MFR# EQM-1S (3U Blue FP)

Product Description

Since rereleasing the EQP-1A & EQP-1S, customers have asked when Pultec planned to do mastering versions of these iconic 3U products. In October 2018 (AES NYC) Pultec announced the EQM-1A, the mastering version of the EQP-1A. They are now excited to announce Pultec EQM-1S, the mastering version ofthe ever-popular EQP-1S EQ, with a couple of extra tweaks. Complete with full-range progressive-taper Elma Switch stepped controls as in the EQM-1A3, EQM-1S3 & EQM-1A mastering EQs, the BOOST/ATTEN controls provide 0.5dB steps for the initial ~50% of rotation and then increase step size as rotation is increased from 50% - 100%. This provides fine control (subtle boost/cut) for mastering/mix-bus applications, while still
delivering the full range (16-20 dB) of BOOST/ATTEN for more aggressive tracking/mixing applications. In
addition to adding mastering controls, Pultec have replaced the 6k peak boost center frequency with the 16k
center, which is so popular on the 1A/1A3 models. So whether your track/mix needs the magical 16k air
band or the full 5k/10k shelf boost, you have the option in a single equalizer.


  • 20, 40, 70,100 CPS sh elf boost, 0 -13.5 dB
  • 20, 40, 70,100 CPS shelf attenuate, 0 -17.5 dB
  • 1, 2, 3, 4,5,8,10,12,16 KCSpeak boost, 0-18 dB
  • 5,10 KCS shelf boost, 0-14 dB
  • 5,10, 20 KCS shelf attenuate, 0-16 dB
  • Full-Range Progressive-Taper Stepped Controls
  • 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

Product Specifications

Condition New
Tube or Solid State Tube
Chassis 19-inch Rack-mount
Rack Spaces 3U
Tube Complement 12AU7, 12AX7, 6X4

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I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
Matthew R.
I had two Grammy wins this year - Ray LaMontagne & Carolina Chocolate Drops. Both made with help from Vintage King!
Ryan F.
In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
Martin C.
This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
Phil T.
The speed of delivery exceeded my expectations! I was VERY pleased that my shipment arrived in time for a scheduled vocal tracking session. The packing insured that my order arrived safely. And the sales staff responded quickly to questions regarding the product.
James P.
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My experience with Vintage King was excellent. The order was here fast considering it was out of stock. The sales person had SKB send it to me directly and I couldn't have been more pleased.
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From the minute I placed my order I was kept well-informed through each step in your process. Even though I was buying a comparatively modest piece of gear, your attention to detail made me feel like I was purchasing a six-figure mixing desk.
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