Log InCreate An Account
  1. Plugins
  2. »
  3. Klanghelm
  4. »
  5. MJUC jr.
  6. »
  7. Details

MJUC jr.

Variable-Tube Compressor Plugin by Klanghelm
MyKVRFAVORITE155WANT75
MJUC jr.
MJUC jr. by Klanghelm is a Virtual Effect Audio Plugin for macOS and Windows. It functions as a VST Plugin, an Audio Units Plugin, a VST 3 Plugin and an AAX Plugin.
Product
Version
1.5.0
Windows 8 or higher
Product
Version
1.5.0
OS X 10.9 or higher
Effect
Formats
Copy Protection
None

MyKVR: Groups, Versions, ...

953 KVR members have added MJUC jr. to 769 MyKVR groups 1063 times.

Download KVR Studio Manager (FREE)

Not In Your MY KVR Groups
(or group limitation prevents versioning)
+769 in private groups

KVR Rank

Overall: 1275   1118   1252

30-Day: 902; 7-Day: 1325; Yesterday: 2318

MJUC jr. is the little brother of the colorful MJUC.

It's a variable-mu design with lots of vibe. capable of smooth leveling but also heavy pumping effects. With its two gain stages and interstage transformer simulation it offers a very deep and lively soundstage.
The three-position timing switch not only controls the attack and release times of the unit, but also the slew rate of the transformers and the timing of the other parts of the circuitry, that are directly influencing the generated harmonics (saturation).

MJUC jr. is a mix of Mk1 and Mk2 of its big brother MJUC. It's combining very natural, dense compression characteristics of the early days of this type of compression with a more forward sounding approach and more harmonics creating of the variable-mu comps of the early 1960s.

MJUC jr. is freeware.

Latest User Reviews

Average user rating of 4.71 from 7 reviews
MJUC jr.

Reviewed By ps142 [all]
January 3rd, 2026
Version reviewed: 1.5 on Windows

This thing will give you level without increasing your peaks, if you hammer it. Thank Klanghelm. This is an awesome compressor.

Read Review
MJUC jr.

Reviewed By Gwugluud77 [all]
August 14th, 2022
Version reviewed: n/a on Windows

First thing I found after getting this was the authentically tube-ish, harmonic MIRACLE it did when I applied it to a drum track...I simply stick 2 or 3 $12.00 Pyle sm57s and an Octava-brand condenser haphazardly about the drumkit and press "record" -- good enough for The Kingsmen when they recorded "Louie Louie"; PLENTY good enough for me. This prompted me to buy the paid version, which has 2 additional modeled compressors, and, since I was drooling over the site anyway, I also got the "mixer desk" sim, which has interesting models of various mixers' elements, sounds good...though I'm vague on what that one is used for, exactly, as the models incorporate compressor and 2-band eq, which are both very mild in their effect. May have been better without those being in the way of my "real" comps and eq channels, and to have just left them as colorization VSTs. But meh, they're still great. The paid version of this compressor is only about 2% better than this free one. But yeah, this free compressor lends major wonder to any track you use it on.

Read Review
MJUC jr.

Reviewed By Trader One [all]
January 8th, 2022
Version reviewed: 1.4.0 on Windows

This one is clear 5 star winner. Its very often listed between the best free compressors and really deserve this position. From technical audio measurement it is better then very good AO compressors and comparable to best paid ones in the industry.

There is more advanced paid version of this plugin - Its worth every penny.

Read Review
MJUC jr.

Reviewed By puff70 [all]
June 28th, 2020
Version reviewed: 1.0 on Mac

nice looking and great working tool ...............................................................................................................

Read Review
MJUC jr.

Reviewed By nonewwavenofun [all]
March 8th, 2020
Version reviewed: 1 on Windows

Nice-looking interface and easy to use, but I prefer their DC1A compressor. Similar idea (two knobs, a couple of modes), but feels more intuitive to me. I'd say stick with the one you prefer - you don't need both.

Read Review

Products similar to MJUC jr....

Comments & Discussion for Klanghelm MJUC jr.

Discussion
Discussion: Active
gwenmollo
gwenmollo
12 October 2019 at 10:09am

It's not a new things, it's free since 2015, the last version is 07/30/15 - version 1.0.1. And it's not 64-bits...

Turello
Turello
4 December 2019 at 6:53pm

Please Mr. Frenzel, back (also) to 32-bit...

Please log in to join the discussion

Log In To KVR Audio