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Manley Nu Mu Variable Mu Stereo Compressor - Used From Manley
Building upon a proud heritage, the Manley Nu Mu merges the “T-Bar mod” all-tube front end from the legendary Manley Variable Mu® and makes it standard followed by a new high voltage all-discrete solid state audio chain for the smoothest dynamics action coupled to the punchiest sonic path. In Used, Excellent condition
$1,760.00
No Sales Tax in 45 States.
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Rating: 4.9
Payments as low as $40/mo.
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What We Think
The Manley Nu Mu is one of those rare compressors that feels as much like an instrument as it does a piece of outboard gear.
At its core, it’s a variable mu design, but with a level of control and flexibility that makes it far more versatile than most in that category. It can be smooth and transparent, gently shaping dynamics in a way that feels almost invisible—or it can lean into its tube character, adding density, glue, and a sense of weight that’s hard to replicate any other way.
What really stands out is how effortlessly the Nu Mu handles mix bus and mastering duties. It has that unmistakable ability to “pull things together,” enhancing cohesion without flattening the life out of a mix. The blend control and sidechain options make it easy to dial in exactly the right amount of compression, whether you’re going for subtle polish or a more pronounced effect.
And then there’s the tone. There’s a richness and dimensionality here that only great tube gear delivers—never muddy, never overhyped, just bigger and more finished in a way that feels natural.
For engineers looking for a high-end compressor that combines classic tube warmth with modern control, the Nu Mu is a standout. It’s the kind of piece you put across a mix and immediately miss when it’s gone.
Manufacturer's Description from Manley
Featuring Manley’s new HIP function, the Manley Nu Mu finesses dynamic control to bring up lower level details without knocking the life out of exciting transients. Smartly engineered to build efficiently and aesthetically designed to elicit ravishing compliments from your clients, both visually and ergonomically, the Manley Nu Mu breaks new ground in performance and value, all proudly hand built in California, of course!
“HIP” Control
The “HIP” control allows compression to happen at lower volumes (lower in the dynamic range spectrum, but leaves
the louder dynamics alone while still compressing the overall signal. You get louder soft sections with the original dynamics of the louder sections.
Features:
- Manley IRON® input transformers
- 4 x hand-matched 6BA6 vacuum tubes
- Balanced XLR inputs & outputs
- Manley HIP function raises soft dynamics without squashing louder passages
- High Voltage Switched Mode Power Supply custom designed for our vacuum tube audio circuits
About Manufacturer
The MANLEY brand has been around since the late 1980's. Manley's first commercially available products were upper echelon high-fidelity vacuum tube amplifiers and preamplifiers constructed at the old Vacuum Tube Logic of America factory.
In this history lesson, we'd like to direct special focus on our people at Manley Labs. The people whose years of dedication, service, and expertise bring you people, our customers, these products. It's all about the people...
On January 30, 1989, a 20 year old EveAnna on sabbatical from her studies at Columbia University met the crew and was hired on to the production team. Baltazar Hernandez, already with two years experience, taught her how to solder in those first few days. It was in 1989 that the first Manley professional products were developed, starting with the original 1u Reference 60dB Microphone Preamplifier and soon followed by our Manley Enhanced Pultec and Mid Frequency Equalizers. Baltazar and EveAnna, busy building gear, were soon joined by Saulo and Ramiro. Just next door, Elias was employed by a printed circuit board maker later brought into the Manley Labs fold when in 1993, Manley Laboratories, Inc. became a separate entity apart from VTL. The new Manley Labs factory at 13880 Magnolia Ave. in beautiful and bovine Chino, California was outfitted to house the Manley HiFi and Pro Studio manufacturing as well as the Langevin production lines, our newly acquired machine shop, and printed circuit board facilities.
Specifications
- INPUT Level Preset 3-way switches -3dB, 0, +3dB
- Continuously variable OUTPUT level controls
- Unity Gain set INPUT to "0" and OUTPUT control to 11 o’clock. (Input source Z= 150 Ohms, Output load Z= 100 kOhms)
- Maximum input level: (1 kHz Sine, <0.3% THD+N)
-3 = +25 dBu
0 = +21 dBu
+3 = +18 dBu - Maximum GAIN: 13dB
- GAIN makeup: 10dB (gain above unity)
- Output Headroom: 23dB (referenced to +4dBu)
- Variable ATTACK control: 13msec - 130msec
- RECOVERY switch 5 steps: 0.1s, 0.16s, 0.32s, 0.64s, 1.7sec.
- Continuously variable THRESHOLD controls
- Hardwired Relay Bypass Switch
- Ratio Mode switches between LIMIT (1.5:1 to 12:1) or COMPRESS (1.2:1 to 3:1)
- HP SC: High Pass Side Chain Filter -3dB @ 100Hz @ 6dB per Octave
- Stereo Link establishes Left-Master dynamic control for THRESHOLD, ATTACK, and RECOVERY controls
- Beautiful illuminated stereo VU meters read Gain Reduction or Output Level
- Sidechain INSERT per channel via 1/4" TRS jack TIP=SEND, RING=Return, SLEEVE=Ground
- Maximum Output: +27dBu (18Vrms) into 100K Ohm load; +24.5dBu (13Vrms) into 600 Ohm load. (1Khz Sine, < 0.3% THD+N, BW 20Hz - 20kHz).
- Frequency Response: - 0.8dB @ 20Hz, -0.5dB @ 50kHz
- Total Harmonic Distortion: <0.05% THD+N (1kHz Sine, +4dBu, BW: 20Hz - 22kHz)
- Noise floor: -85dB typical (BW: 20Hz - 22kHz)
- Dynamic Range: 112dB
- Signal to Noise Ratio: 89dB (referenced to +4dBu)
- Common-Mode Rejection Ratio (CMRR): 74dB (BW: 20Hz - 22kHz, +4dBu, 1kHz Sine)
- Output Impedance: 100 Ohms
- Input Impedance: -3dB= 1 kOhms, 0dB= 2.5 kOhms, +3dB= 4.5 kOhms
- AUTOMUTE warmup delay: 30 Seconds
- Power consumption: 35 Watts
- Standby Power Consumption: ?? Watts
- Operating mains voltage: 90 to 254 VAC (internal universal supply)
- Mains Voltage Frequency: 50-60Hz
- Dimensions: 19" x 3 1/2" x 7" (occupies 2u)
- Unit Weight: 8.5 lbs.
- Shipping weight: 11.5 lbs.
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