Log in
Log in

or
Create an account

or
< All Behringer UltraFex II EX3100 reviews
Add this product to
  • My former gear
  • My current gear
  • My wishlist
Behringer UltraFex II EX3100
Images
1/161
Behringer UltraFex II EX3100
Price engine
Classified Ads
Forums
DJulius DJulius

« Superb and timeless concept for sound-processing »

Published on 09/02/25 at 06:07
Best value: Excellent
Audience: Advanced Users
Totally worth the money if you're still somewhere using the analog stage of recording or mastering! I see people selling this thing for 50 euros now, which is insane value for money.

Me and my cousin bought this unit somewhere late 1993 in order to beautify old tape-recordings (often even from cassette-tape) and planned to also use it during mastering of new recordings, dance-mixes, remixes and own audio for film/video-productions. I liked it so much that I've also used it in the end-stage of mastering pre-recorded FM-radio broadcasts for years on end in the 1990s.

Recently (in 2025) I dusted off the box and connected it again, and am honestly amazed by its quality output. Not only does it still work as new, it totally outperforms most of the (expensive) 'enhancer' and 'exciter' plugins that I've used for the last couple of decades. Even ones I paid for.
If you solo out its output you can clearly hear what it does, and how well it does that. Behringer have truly delivered class audio processing with this device. Not sure how or what they've decided to create those harmonics with, but they truly work wonderful for the human ear. This device actually does what it says on the tin:
The output creates airy crisp VERY warm sounding harmonics for the high notes, harmonics that remind me of old tube-amp artifacts from the late 1970s, it sounds purely analog to me.
And its low end harmonics peak with truly sub-bass content of 80Hz and below, which also boosts the warmer end of the lower spectrum perfectly well.

I will add a photo of how I've set it recently mixing a live performance which I've also recorded from the desk with the UltraFEX II EX3100 using Aux sends so I could control what instruments/mics should have what amount of added harmonics. The sound of this device sincerely amazes me still. It's the thing making an end product in audio sound warm and fuzzy. Just do some testing on the amount to add, find out the ratio between wet and dry before doing the actual productions, gigs or performances and you'll be glad you used it. The low-end can be too much quite fast, so use it scarcely, but if you high-pass the high harmonics set at its max frequency (around 8kHz) it's pure bliss for the human ear!

Ever since rediscovering this unit I've started to also use it as a DJ, it works really well over large PA-systems too, even as an in-between before active speakers. THD is insignificantly low, and I/O is symmetrical/balanced so no worries there.

Images linked to this review

  • photo

Audio examples

Capoiera_HappyBDay
00:0006:05