Manley Labs Nu Mu Stereo Limiter and Compressor

Manley Labs Nu Mu Stereo Limiter and Compressor

Manley Labs Nu Mu Stereo Limiter and Compressor

Special Order
Expected availability: 7-14 business days

Product Highlights

  • Dual Channel with Stereo Linking
  • Hybrid Tube and Solid-State Design
  • Suitable for Stereo Buss Compression
  • Capable of a Transparent, Punchy Sound
  • Approximate Ratios of 3:1 and 10:1
  • Adjustable Attack and Release Times
  • Hip Control for Preserving Dynamics
  • Level and Gain Reduction Meters
  • Sidechain High-Pass Filter at 100 Hz
  • 2 RU Unit with Internal Power Supply
Show moreShow less

This item is noncancelable and nonreturnable.

B&H $500 Gift Card Dash

Share for a chance to win a $500 B&H Gift Card!

Share on Twitter

Share a favorite product for chances to win one of eight $500 B&H Gift Cards!
1 new winner announced every Monday starting Nov 5th!
Limit 1 entry per day: Come back every day to increase your chance of winning.

Be sure to mention #BHWishList when you share!

Congrats to our winners so far:

Next winner: Nov 26th

James Z. (Wk 1)

Ralph H. (Wk 2)

Arturo M. (Wk 3)

Official Rules


NO PURCHASE IS NECESSARY TO ENTER OR WIN. The B&H $500.00 Gift Card Dash (the "Sweepstakes") is void where prohibited by law and is sponsored by B&H Foto & Electronics Corp., 440 Ninth Avenue, New York, NY 10001 ("Sponsor"). It is not sponsored or endorsed by Facebook or Twitter in any way.

Entry Period/Methods of Entry. The Sweepstakes will run from on or about October 28, 2018 until on or about December 23, 2018 (the "Entry Period"). Entries received outside the Entry Period are void. Enter the Sweepstakes via either one of the following methods. (1) Share any product found on the B&H website (the "Website") on Facebook or Twitter via the dedicated links contained on the website using the hashtag #BHWishlist; or (2) Mail a postcard (postmarked during the Entry Period) containing your name, address, phone number, and email address, and indicate the subject(s), if any, about which you are interested in receiving future emails from B&H (e.g. photo, video, audio, computers, home theater, portable entertainment ) (optional) to: B&H $500.00 Gift Card Dash Sweepstakes, c/o B&H Foto & Electronics Corp., 440 Ninth Avenue, New York, NY 10001 (either option, an "Entry"). Entries must not, in the sole and absolute discretion of the Sponsor, contain obscene, provocative, defamatory, sexually explicit, or otherwise objectionable or inappropriate content. Entries deemed by Sponsor to be inappropriate will be disqualified. Entries owned by a third party, or the use of any trademarks, service marks, logos, brands, or products owned by a third party are not acceptable for entry into the Sweepstakes. Limit 1 entry per person, per day.

Winner Selection/Prizes/Odds. The B&H Social Team will randomly select a winner from among all eligible entries every Monday during the Entry Period, for a total eight (8) winners (each a "Winner"). Each Winner will receive a B&H Gift Card pre-valued in the amount of $500.00. No cash or other substitutions will be offered. Winner selection is in the sole and absolute discretion of the B&H Social Team. Any taxes are the sole responsibility of the winner. Winners will be notified and receive their prize at the email address associated with the account to which their Entry was posted or the email account provided with a mail-in entry. The odds of winning depend on the number of eligible entries received.

Identity of Winners/Eligible Participants. Winners will be identified by the email account associated with the Facebook or Twitter account from which their Entry was submitted or the email account provided with a mail-in entry. An email account holder shall mean the natural person assigned to such email account by the internet access or online service provider or other organization responsible for assigning email addresses for the domain associated with such email account. Any issues regarding the identity of a Winner shall be resolved by Sponsor in its sole discretion. The Sweepstakes is only open to residents of the United States that are at least eighteen (18) years of age on their entry date and is not open to employees of Sponsor, their immediate family, any person domiciled with such employees, or any affiliates or subsidiaries of Sponsor.

Entry Ownership/Entrant Agreements. Entrants retain full ownership and copyrights to their Submission. However, by entering the Sweepstakes entrants grant Sponsor permission to use their Entries for promotional purposes on their respective social media channels with proper credit. Entrants also agree: (a) to be bound by these Official B&H $500.00 Gift Card Dash Sweepstakes Rules; (b) that any claims related to this Sweepstakes shall be resolved individually without resort to any form of class action and that awards, shall be limited to actual out-of-pocket costs incurred in entering the Sweepstakes, and shall not include incidental or consequential damages or attorneys fees; and (c) that any actual or perceived ambiguities in these rules shall be interpreted by Sponsor in their sole discretion.

Limitation of Liability/Sponsor Modification/Cancellation Rights/ Choice of Law/ Venue/ Winners List. Sponsor is not responsible for incomplete entries or for failure to receive entries due to technical failures or human error of any kind. Winners agree that Sponsor will have no responsibility for losses or damage of any kind resulting from the acceptance, possession, or use of the prizes. Except where prohibited, participation in the Sweepstakes constitutes entrant's consent to the publication of his or her name by Sponsor in any media for commercial or promotional purposes without limitation or further compensation subject to Sponsor's respective Privacy Policies. Sponsor may modify or discontinue the Sweepstakes at any time and may disqualify from the Sweepstakes any person it determines, in its sole discretion, to have attempted to or actually tampered with or otherwise abused any aspect of the Sweepstakes. Entrants agree that in the unlikely event a dispute arises in connection with this Sweepstakes, it will be governed by the laws of the State of New York and heard exclusively in a court of applicable jurisdiction in the County and State of New York irrespective of any choice of law provisions to the contrary. To receive names of the winners by U.S. mail, please mail a self-addressed stamped envelope to: B&H Foto & Electronics Corp., Attn: B&H $500.00 Gift Card Dash Sweepstakes, 440 Ninth Avenue, New York, NY 10001. Any Winners List request must be received by B&H within one (1) year of the date the Sweepstakes is conducted.

Let us know how to reach you if you win!

Privacy 100% guaranteed; email address for contact purposes only


Already have a B&H account? Just log in tomorrow to enter again!

$0 VA Sales Tax Collected on This Item
Add to Wish List Item in Wish List

Manley Labs NU MU overview

  • 1Description

Featuring a hybrid tube/solid-state design, switchable input levels, and Manley IRON balanced-input transformers, the Nu Mu is a dual-channel compressor and limiter suitable for use on the stereo buss. The unit itself comes stocked with the same tube front-end of the well regarded Variable Mu—four hand-matched 6BA6 vacuum tubes on the valve side—while offering a FET solid-state amplifying and output stage, which provides its faster, punchier path. As such, it’s a compressor well suited for electronic pop productions, or other mixes where one desires a more transparent stereo-buss compressor, rather than a color piece.

The Nu Mu provides output controls for both the left and right channels, as well as independent bypass, threshold, ratio, attack, and recovery selectors. Both the attack and recovery settings are continuously variable, reacting to the music pumped through the channels. Still, you can roughly dictate how slowly or quickly these controls operate. You’ll note the independent three-position toggle switches, which dictate the input level, giving you a choice of +3, 0, or -3 dB. Separate VU meters can be configured to read gain reduction or overall output levels.

On the left of the unit, you’ll find a link button, which will turn the left channel into the master channel, thereby ganging threshold, attack, and recovery controls. In this way, you can achieve a cohesive stereo picture when processing a dual-channel source. On the right, you’ll note the HP SC switch, which operates the internal sidechain detector circuit, factory set to 100 Hz. This global control is useful for allowing bass signal to pass through the NU MU without triggering gain reduction, thereby securing yourself a fuller, more bass-heavy sound.

The unit provides two different ratios, one offering compression at approximately 3:1, and the other offering limiting at 10:1—or thereabouts; the ratio, like the attack and recovery times, is program dependent.

Perhaps the most interesting feature of this unit is the Hip control, accessible on the right side of the front panel. When engaged, the Hip control does not operate as hard on intrinsically louder signals as it does on audio with a lower amount of level, effectively allowing your louder material to shine through uncompressed. Using this circuit can obviate the need for parallel compression in certain situations. The unit takes up 2 RU of rack space and comes with its own power supply.

Features at a Glance
•Variable attack and release controls, which can be set between slow and fast
•2 ratios for compression or limiting
•Hip control for preserving dynamics of loud sections
•Suitable for use as a stereo-buss compressor on electronic production, or other material where clean, punchy gain-reduction is called for
•4 x hand-matched 6BA6 vacuum tubes with FET solid-state amp and output stage
•Stereo link establishes left-master dynamic control
•Illuminated stereo VU meters read gain reduction or output level
•High-voltage SMPS custom designed for Manley Labs' vacuum tube audio circuits
UPC: 890833001905
In the Box
Manley Labs Nu Mu Stereo Limiter and Compressor
  • IEC Power Cable
  • Limited 90-Day Warranty (Limited 5-Year Warranty on Registration within 30 Days)
  • Table of Contents
    • 1Description

    Manley Labs NU MU specs

    Transformer Manley IRON input transformers
    Tubes 4 x hand-matched 6BA6 vacuum tubes
    Connectors 2 x balanced XLR inputs
    2 x balanced XLR outputs
    2 x 1/4" insert inputs, phone type
    Attack Continuously variable, 13 to 130 ms
    Recovery 0.1 to 3.9 seconds, depending on gain reduction via 5-step switch
    Switch Hardwired relay bypass switch
    Mode Ratio mode switches between Limit (1.5:1 to 12:1) or Compress (1.2:1 to 3:1)
    Sidechain 1/4" stereo TRS insert point on each channel
    Sidechain Filter High-pass internal sidechain filter @ 100 Hz, 6 dB per octave
    Metering Switchable between output level or gain reduction
    Maximum Input Level @ 1 kHz sine, <0.3% THD+N
    -3 = +25 dBu
    0 = +21 dBu
    +3 = +18 dBu
    Maximum Gain 13 dB
    Make-up Gain 10 dB (above unity)
    Headroom 23 dB output (reference to +4 dBu)
    Maximum Output @1 kHz sine, < 0.3% THD+N, BW 20 Hz to 20 kHz
    +27 dBu (18 Vrms) into 100-kOhm load
    +24.5 dBu (13 Vrms) into 600-Ohm load
    Frequency Response - 0.8 dB @ 20 Hz, -0.5 dB @ 50 kHz
    Total Harmonic Distortion @ 1 kHz sine, +4 dBu, BW: 20 Hz to 22 kHz
    <0.05% THD+N
    Noise Floor -85 dB typical (BW: 20 Hz to 22 kHz)
    Dynamic Range 112 dB
    Signal to Noise Ratio 89 dB, referenced to +4 dBu, BW: 20 Hz to 22 kHz
    CMRR 74 dB (+4 dBu, BW: 20 Hz to 22 kHz)
    Impedance Input: 1 kOhm @ -3 dB, 2.5 kOhms @ 0 dB, 4.5 kOhms @+3 dB
    Output: 100 Ohms
    Sidechain Insert: 50-Ohm send, 50-kOhm return
    Warm-Up Time 30-second mute timer
    Power Supply Universal internal power supply
    90 to 254 VAC; 50/60 Hz
    Rack space 2 RU
    Dimensions 19.0 x 3.5 x 7.0" / 48.3 x 8.9 x 17.8 cm
    Weight 8 lb / 3.63 kg
    Packaging Infobxfrevdcwrtsxteswwxvstsxezuaaffduaywr
    Package Weight 11.95 lb
    Box Dimensions (LxWxH) 23.0 x 11.0 x 8.0"

    Manley Labs NU MU reviews

    Be the first to review this item

    Manley Labs NU MU Q&A

    Manley Labs NU MU accessories

    See any errors on this page? Let us know.