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Tegeler Audio Classic Equalizer EQP-1

Passive 2-channel dual mono tube EQ - 2u, 19" rackmount chassis

Product Description

The Tegeler Audio Classic Equalizer EQP-1 was modeled after classic vintage equalizers with passive components (condenser and inductor) in the EQ section, which accounts for its special sound.

The EQP-1 consists of three parts: Bass Boost and Cut, Treble Boost with adjustable bandwidth and a High-Frequency Cut. Voices sound silky, instruments step out of the mix and are clearly locatable without one turning them up. Deep frequency instruments like bass and bass drums get the necessary boost without sounding boomy. If you raise up the treble, it doesn't sound like lifted highs, but everything simply sounds fresher.

The EQP-1 is equipped with a tube stage and high-quality input and output transformers.

Besides the open and airy sound of the equalizer, the signal will get more density and additional presence from the tube and the transformers. The low end becomes more transparent and defined. The highs become more rounded and pleasant to the ears. This effect will already take place as soon as the device is in the signal path and even if the equalizer is not used.


  • Low boost/attenuation (Low shelf):
  • 20Hz, 30Hz, 60Hz, 100Hz
  • High boost (Peak with variable bandwidth):
  • 3kHz, ,4kHz, ,5kHz, 6kHz, 8kHz, 10kHz, 12kHz, 16kHz, 20kHz
  • High attenuation: (High shelf) 5kHz, 10kHz, 20kHz
  • Balanced input and output
  • Input and output transformer
  • Bypass switch
  • Internal power supply

Product Specifications

Condition New
Package Contents Tegeler Audio Classic Equalizer EQP-1
Tube or Solid State Tube
Channels Dual-Channel
Chassis 19-inch Rack-mount
Rack Spaces 2U
Input Connectors Analog XLR
Output Connectors Analog XLR
EQ Type Parametric

Product Reviews

5 out of 5 stars.
Review Count (4)

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So far, I’m loving everything I’ve heard from Tegeler Audio!!

By Howard G on July 20, 2021

As the last piece of kit in my mastering chain, the Tegeler adds the finishing stroke with a nuanced, transparent, "smile" inducing touch.
Solid gear all around.

By David W on June 23, 2021

Just came in the mail today! I have put it on a few mixes that I have been waiting to add a little 2bus EQ. It's sounds great! It has seemed to cure the harshness of my ITB setup. Wowza, A+ ease of use and quality. Vintage King very communicative during the backordering as well, kept me informed.

By Kuzma on January 5, 2021

It’s unbelievable Pultec Passive style EQ. It’s truly tube smooth EQ. It looks very good with my API 5500 and Neve 1073/1081. I use it on any : vocal,acoustic guitar , el guitar ,bass, drums. Also I like to use this EQP1 on mixbus or mastering for tonal shaping ( smile eq, a little low and hi ) it’s a classic trick.Don’t think twice. Go invest your money for great sound EQ. Again big thanks to Thomas O’Conor sales manager for help

By Volodymyr O on November 8, 2020

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How do you rate this product?
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.
Thank you so much! Vintage King has been so fair and easy to work with. I can't thank you enough. It feels good to trust such a hefty purchase to folks who are so helpful and knowledgeable. Vintage King is a sound designers dream store.
Noa L.
You guys have excellent customer service and I am excited about the next upgrade I complete on my fifth recording facility. I've been in the studio business for forty plus years. The salesman I worked with at Vintage King was the best of the best. You all rock!
Robby T.
I would recommend Vintage King to any one looking for top-class gear, unbeatable customer service and the best prices on the map!
Jake D.
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.
Michael D.
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.
Thomas W.
I am a new customer of yours. You guys provided me the absolute best deals in ordering all the equipment to power my brand new recording studio. Your customer service is amazing and i will always deal with you from here on out.
Rob M.
Thanks for your great service and getting this out today. You guys really are the Kings!
Alan B.
Better than expected! Truly impeccable service. Your team was professional, knowledgeable, provided speedy delivery above and beyond standard. Vintage King Audio is definitely my go to for all of my audio and information needs.
James O.