UREI 546 Dual Parametric Equaliser (Refurbished & Recapped)


Vintage 2-channel UREI equialiser – recapped & refurbished

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This UREI equaliser has been recapped & refurbished. All the electrolytic capacitors in the audio path have been replaced with Panasonic bipolar caps and the power supply has been recapped & upgraded. Photos show the UREI for sale

Vintage equaliser from UREI. The 546 is a two-channel, four band parametric equaliser with variable high- and low-pass filters and input gain controls. In usual UREI fashion, the ergonomics and signal path have been honed to perfection , producing a highly useable, efficient EQ

Each band has a push-pull, in / out switch to bypass that band only. Each channel has a bypass switch and this 546 has been modified with a filter bypass switches. In bypass bandwidth is extended to 200 KHz

The 546 is easy to use with plenty of scope in the controls and well-judged linearity. The tightest filter setting has a high Q is suitable for notching out problem frequencies. At broader settings each band is wider & smoother. The 546 turns out to be my favourite bass equaliser – it’s easy to put weight into a bass sound, or warmth, or depth without it sounding wooly

“There’s also a certain curiosity factor with this eq. Every engineer that’s been in my studio since I got it has immediately zoned in on the 546 and been intrigued with it. There were only about 1,000 made, I believe, so it’s not something everyone has seen”

“Very useful piece of gear IMHO! Good for notching out annoying freq’s in guitars/vocals. You may find you like on a variety of sources”

“A friend was clearing out his studio of older stuff and gave me his a few years ago. It sounds good, great for bass, guitars or vocals. Mine seems a bit sensitive to overload, probably needs new caps.

The 546 was original UREI [United Recording Electronics Industries] gear from their Sun Valley days, and was pre – JBL. I think 70’s.”

“It’s a great parametric EQ for the price that they seem to fetch. They do not have a lot of headroom (which is a problem with lots of parametrics) but you can generally work around it. Not a warm or sweet sounding EQ but great for surgical stuff like fixing bad kicks, vocals, etc”

In very good used condition. Has minor rack rash & case marks but it’s in great shape for a vintage piece. All knobs are original & in good condition excepting channel A low-frequency knob which has a chip out of the transparent surround. Refurbished & recapped. Tested & working 100%. Photos show the UREI for sale

Dual-channel parametric equaliser with separate controls for each channel. Four bands per channel, with individual band defeat switches, and continuously-variable low- and high-pass filters. On this unit the filters have a bypass switch. Inputs & outputs are balanced on XLR and terminal strip. Channels can be cascaded via a back-panel switch to create a single-channel 8-band EQ

110 / 220 VAC input with rear-panel voltage switching. Power input via standard IEC socket. US, UK or Euro Schuko IEC power cable supplied on request

Shallow 3U device suitable for 19" racks

Operating manual


Gearslutz discussions




In very good used condition. Some rack rash & case marks but very good for a vintage piece. All knobs are original & in good condition apart from channel A low-frequency knob which has a chip out of the transparent surround. Recapped & refurbished. Tested & working 100%

Vintage gear All vintage gear will have case scratches and marks. It may also have, or develop, noisy pots and switches. I make my descriptions as accurate as possible and note any existing defects. I test each item before shipping but please understand that vintage gear will not be perfect and adjust your expectations accordingly