Undertone Audio

UTEQ500

500 series parametric EQ
UTEQ500
A single UTEQ500 module from the front
UTEQ500 module at a three-quarter angle
UTEQ500 rear edge connector
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The Legendary Undertone EQ, now in 500 series

We can now ALL have the amazing sound and flexibility of the UTA console EQ in a 500 series package. The UTA console EQ and subsequent MPEQ-1 channel strip have been recognized for their exceptional vintage musicality and extraordinary flexibility.

Imagine having a 500 series EQ that can replicate the shape or curve of any other hardware EQ made. The 500 series format makes this extraordinary EQ design more accessible for all.

Three super-parametric bands

Each band has continuously variable frequency, switchable Boost/Cut/Notch, Q control from .3 to 10, and a Shape control that blends between peak and shelf.

Notch mode cuts up to 50 dB. Vari-Phase mode varies phase on a frequency band while keeping amplitude flat. No other 500 series EQ does this.

Features

  • 3 Super Parametric bands
  • Range switching mid band
  • Shape Control for blending between peak and shelf shapes
  • Q control range from .3 to 10
  • Notch Filter mode for extreme cuts
  • Unique Vari-Phase mode
  • Input pad for added headroom
  • High quality, long-life switches and capacitors

Stereo, already matched

Two UTEQ500 modules side by side give you the same EQ curve on both channels: phase-perfect, tonally identical, instantly recallable. Drop a pair on a drum room, the mix bus, or a stereo mastering insert and the stereo image stays anchored from first move to last.

Built to outlive your rack

Hand-tuned in California from long-life switches, audiophile capacitors, and discrete-component circuitry. The UTEQ500 is the kind of insert that ends up on every session, and stays there.

UTEQ500 500 series EQ module, front view
Front
UTEQ500 500 series EQ module, three-quarter angle
Angle
UTEQ500 500 series EQ module, rear edge connector
Rear

There’s a new EQ on the 500 block.

The 3-band “Super Parametric” EQ circuit gives you endless variations of frequency, bandwidth and shape.

The Shape control lets you blend between peak and shelf shapes, so you can recreate the curves of any hardware EQ.

A single UTEQ500 500 series EQ module, front view

Three overlapping bands, with a range-switching mid band, give you access to any frequency in the spectrum.

A unique variable phase mode lets you vary the phase across the frequency spectrum.

Howdy, neighbors!

Watch the video

Three more looks at the UTEQ500: the deep dive, the most powerful analog EQ, and the UTEQ500 in action.

“The UTEQ500 sounds fantastic and is the most versatile EQ I've ever used. One of my top three 500 Series EQs, and one of my top four EQs ever.”
John Baccigaluppi, Tape Op #161
“Probably the most versatile 'console-style' analogue equaliser I've ever had the pleasure of testing. The notch and all-pass filters are the icing on a very special cake.”
Matt Houghton, Sound On Sound
“The rare EQ that can really do it all. Like no other EQ on this list, yet it can do almost everything the others can, and more.”
Vintage King, Best EQs Under $1,500