Manley Labs Slam! Mastering Tube Stereo Limiter

Manley Labs Slam! Mastering Tube Stereo Limiter

Manley Labs Slam! Mastering Tube Stereo Limiter

Manley Labs Slam! Mastering Tube Stereo Limiter

Manley Labs Slam! Mastering Tube Stereo Limiter Back View

Back View

Show MoreLess


Now Viewing:

Important Notice: This item is non-cancelable and non-returnable
Special Order
Expected availability: 7-14 business days 
Free Standard Shipping
Not eligible for Free Expedited Shipping

Product Highlights

  • 2 x ELOP Limiters
  • 2 x FET Brickwall Limiters
  • Hand-Wound Nickel Transformers
  • Hand-Selected Tubes
  • Auto-Mute Warm-Up Circuit
  • Separate Power Supply
  • Stereo Linking
  • Large VU Meters
  • Multi-Color LED Ladder Peak Meters
Show moreShow less
Man Behind Layer

B&H $1000 Giveaway

Share your most-wanted item with friends & family for chances to win a $1000 B&H Gift Card. It's that easy!

1 new winner announced every week!
Limit 1 entry per day; Come back every day to increase your chance of winning!

Be sure to mention #BHWishList when you share!

Share on Twitter Share on Facebook

Congrats to our winners so far — Mark P., Lauren K. & Daniel M.

Official Rules


NO PURCHASE IS NECESSARY TO ENTER OR WIN. The B&H $1,000.00 Giveaway (the "Giveaway" or "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 November 7, 2016 until on or about December 19, 2016 (the "Entry Period"). Entries received outside the Entry Period are void. Enter the Sweepstakes via either one of the following methods. (1) Share your most wanted item on Facebook or Twitter via the dedicated links found on the B&H Website (; 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 $1,000.00 Giveaway, 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 three (3) winners (each a "Winner"). Each Winner will receive a B&H Gift Card pre-valued in the amount of $1000.00. 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 to the e-mail 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 e-mail 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 e-mail account holder shall mean the natural person assigned to such e-mail account by the internet access or online service provider or other organization responsible for assigning e-mail addresses for the domain associated with such e-mail 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 $1,000.00 Giveaway 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 $1,000.00 Giveaway, 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!

$0.00 Tax Collected Outside NY

You Pay: $7,740.00

Add to Wish List Item in Wish List
  • 1Description

The Slam! Mastering Tube Stereo Limiter from Manley Labs is a two-channel dynamics processor with each channel featuring one electro-optical (ELOP) and one field-effect transistor (FET) "brickwall" limiters. The unit is constructed with professional-grade components, hand-wound nickel transformers and hand-selected tubes.

The mastering version removes the mic preamps and instrument inputs making way for a paralleled tube section, yielding lower noise and distortion. All conductive plastic pots have been replaced with Greyhill rotary switches with 1% metal-film resistors, which not only provide recallability, but also deliver an improvement in sound quality. The bypass switch offers a ganged left and right control and functions as a true hard-wire bypass. This version also features transformer-less 1/4" inputs, as well as an expanded range for the ELOP and FET limiters.

Each channel of the Slam! has ELOP and FET limiters available simultaneously or separately. Each adds a distinct character to the sound with the ability to dial in the best of both. The ELOP's minimalist design has a fixed ratio, attack and release with only a variable control for threshold. Additionally, it offers a side-chain high-pass filter, with the 200 Hz setting optimized for vocals and a touch of de-essing.

The FET circuit is a fast "brickwall" limiter with variable controls over threshold, attack and release. The circuit is capable of a variety of colors from clean to grungy, all the while maintaining "zero overshoot" limiting. With the clip setting selected, the FET allows for severe distortion by speeding up the timing circuit and allowing the limiter to work on the waveform rather than the envelope. Both the ELOP and the FET limiters have side-chain inserts (send & return) available on the rear of the chassis via Bantam (TT) jacks.

The Slam! offers comprehensive monitoring via the VU and LED ladder peak meters. In addition to the source toggle for gain reduction, input and output, the VU meter has a pad toggle which allows you to scale the signal down -6 dB for loud signals. The multi-color LED peak meter has a source toggle offering gain reduction, peak and reset & mode. The momentary reset & mode switch clears out any peak signals and allows for the calibration of the peak LEDs to match the meters of your A/D converters. Three Slams can be linked together enabling six channels of limiting for 5.1 surround sound. A separate power supply is used to reduce the detrimental effects of heat and electromagnetic fields (EMF) from influencing the signal path. Hand-made in the USA, the unit is housed in a 2U steel chassis with a CNC-machined 1/4" faceplate that is also inlaid with laser-engraved inserts. The Slam! ships with a separate power supply, 16-pin multi-core connection cable, and IEC power cable.

ELOP Limiter
Ratio: 10:1
Fixed attack and release
Continuously variable threshold control
SC HZ: Flat, 100 Hz, and 200 Hz
200 Hz setting optimized for vocals with slight de-essing
FET Limiter
Variable threshold knob for FET Limiter
Attack 3-way toggle: Very fast (VF), fast (F), and medium (M)
Release 11 position dial: 10ms to 2 seconds
Clip: Release setting to create severe distortion
Stereo Link
Stereo Link: Channel 1 controls both Channel 1 and 2
Dual Mono: Independent control of channel 1 and 2
Both & Ext: Stereo link with independent control of channel 1 and 2 and engages rear-panel link for surround control
Limit Button
Channel 1 Limit: Engages the opto-limiter, FET Limiter and output level knob for channel 1
Channel 2 Limit: Engages the opto-limiter, FET Limiter and output level knob for channel 2
LED Meter
GR: Sets LED meter to monitor gain reduction
Peak: Sets LED meter to monitor peak output
Mode & Reset: Momentary switch used to clear peaks from the peak meter and used to set up and calibrate the LED meters section
VU Meter Toggles
VU 3-way toggle: Sets source to GR (gain reduction), O/P (output level), I/P (input level)settings
VU Attenuate: Pads VU meter for loud signals with 0, -3, and -6 dB settings
Additional Features
Auto mute warm-up delay: 30 seconds
Hand-wound Manley iron input transformers
Silent conductive plastic input attenuator
Separate power supply
In the Box
Manley Labs Slam! Mastering Tube Stereo Limiter
  • Power Supply
  • 16-Pin Multi-Core Connection Cable
  • Standard IEC Power Cable
  • Limited 90-Day Warranty, Extends to 5 Years with Registration
  • Table of Contents
    • 1Description
    Number of Channels 2
    Input / Output Input
    2 x Balanced transformer coupled XLR/1/4" Combo Neutrik: 2 kΩ
    2 x Unbalanced transformer-less 1/4": 100 kΩ, 10 MΩ
    2 x Balanced transformer coupled XLR: 200 Ω
    2 x Unbalanced 1/4" TRS
    Side Chain / Link
    2 x Bantam (TT) send: ELOP
    2 x Bantam (TT) return: ELOP
    2 x Bantam (TT) send: FET
    2 x Bantam (TT) return: FET
    2 x Bantam (TT) link: for connecting 3 Slam! compressors for 5.1 operation
    Gain Mic Preamp: 60dB max
    DI: 43dB max
    Limiter: 20dB max
    Limiter ELOP Limiter
    Ratio: 10:1
    Attack time: 10 ms for 6 dB GR
    Release time: 2.5 sec for 6 dB GR
    FET Limiter
    Ratio: 20:1 or better
    Attack time: 100 µs for 6 dB GR
    Release time: 10 ms to 2 sec for 6 dB GR
    Tubes Input
    2 x 12AT7A NOS GE
    2 x 6414W NOS USA dual triodes
    Dynamic Range (Typical) 115 dB
    Frequency Response (Audio) Preamp: 5 Hz to 60 kHz
    THD & Noise <0.05% @ 1 kHz
    Maximum Output +32 dBm, +30 dBm (into 1 kΩ)
    Metering 2 x Large VU meters
    1 x VU toggle switch: 0, -3, -6 dB
    1 x VU source toggle switch: GR, O/P, and I/P
    2 x Multi-color LED ladder peak meters
    1 x LED source toggle switch: GR, Peak, and Mode & Reset
    Power Power supply: 480 mA @ 120 VAC
    Power consumption: 57.6 W
    Mains voltage frequency: 60 Hz
    Rackmountable 2U
    Dimensions (W x H x D) Slam!: 19.0 x 3.5 x 12.0" / 48.3 x 8.9 x 30.5 cm
    PSU: 7 x 4 x 5" / 18 x 10 x 13 cm
    Weight Not specified by manufacturer

    Manley Labs Slam! Mastering Tube Stereo Limiter Review

    Be the first to review this item
    See any errors on this page? Let us know.