Manley Laboratories SLAM! Mic Preamplifier & Stereo Limiter

Let the Manley SLAM! take control of your dynamics and loudness. This powerful unit combines Manley’s legendary all-tube preamplifiers with two distinct and simultaneous limiters—the musical ELOP® and the fast FET "brick-wall" limiter—giving you a unique and versatile tool to shape your sound. This also may just be the most exclusive DI input out there.

Two Limiters, One Purpose
The Manley SLAM! features a dual-stage limiting process for unparalleled dynamic control. The ELOP® optical limiter, renowned for its transparent and effortless gain reduction, provides a smooth, musical compression. This is followed by a lightning-fast FET limiter that can be used to catch the final peaks, creating incredible loudness without the harsh artifacts of digital clipping.

The Professional's Tracking Solution
With its all-tube, high-headroom microphone preamplifiers and a dedicated Hi-Z instrument input, the SLAM! is the perfect front-end for any signal. Its design delivers a rich, analog tone while providing enough clean gain for any microphone, from dynamic to low-output ribbons. It's the ideal tool to ensure your audio hits the digital converters with maximum sonic impact and integrity.

Built for Sonics, Engineered for Performance
The SLAM! is built to perform in the most demanding studios. Its outboard power supply keeps heat and magnetic fields away from the sensitive audio circuitry, ensuring a pristine signal path. With flexible I/O, a mini-patchbay for side-chain inserts, and attenuable VU meters that can be switched to prevent needle bending, it’s a robust and reliable tool for a lifetime of professional use.

• Two all-tube mic preamps, DI inputs and line inputs
• Features both, 2 ELOP (optical) & 2 FET (brick-wall) limiters
• High-headroom design optimized for digital conversion
• Ideal for tracking microphones & DI tracks, mixing, and even mastering

Tube Complement & Limiter Specifications
• Input Tubes: 2 x 12AT7A NOS GE specially selected by Manley Labs for lo-noise and stable bias
• Output Tubes: 2 x 12BH7 (or 6414W NOS USA) dual triodes
• Balanced XLR Line I/O: MANLEY IRON® transformer-coupled Balanced Inputs and Outputs
• MIC XLR Input: via Lundahl input transformer
• MICPRE: Selectable 48V phantom power and PHASE REVERSE
• Gain: 60dB max Micpreamplifier, 43dB max DI, 20dB max Limiter Gain
• Mic Input Impedance: 2000Ω
• 1/4” unbalanced DI Input Impedance: 100 kOhms or 10 megOhms (1/4” jack out halfway)
• FET Limiter: Attack: approx. 100μS; Release: 10mS to 2Sec; Ratio: better than 20:1
• ELOP Limiter: Attack: approx. 10mS for 6dB GR; Release: 2.5 Sec; Ratio: 10:1
• Frequency Response: 5Hz to 60KHz
• Maximum Output: +32dBm, +30dBm (into 1KΩ load)
• THD+N: <.05% @ 1KHz

Power Supply & Physical Dimensions
• Dynamic Range: 115dB typical
• Output Impedance: 200Ω
• Power Consumption Slam! Analog:
- 0.480 Amps (480 milliamps = 480mA) @ 120V = 57.6 Watts
- 0.240 Amps (240 milliamps = 240mA) @ 240V = 57.6 Watts
• Outboard Power Supply: factory set for 100V, 120V or 220-240VAC operation for original destination country's mains voltage.
• Operating Mains Voltage: changeable with power transformer re-wiring via switch and fuse value change.
• Mains Fuse Value for 100~120VAC operation: replace with 2A
• Mains Fuse Value for 220~240VAC operation: replace with 1A
• Mains Fuse Type: MDA or MDL SLO-BLO Time delay 1 1/4" x 1/4"
• Mains Voltage Frequency: 50~ 60Hz
• Size: 19” X 12” X 3.5” (occupies 2u)
• Shipping Weight: 25 lbs.