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Manley Slam!

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Description

Essential Information About the Manley SLAM! Stereo Limiter and Mic Preamp

  • Two limiters per channel (four limiting sections in total) to switch from ultra-fast control to a more "musical" handling of peaks.
  • Class A tube microphone preamps with 48 V phantom power and phase inversion, for rich, dense, and very "studio" recordings.
  • Manley transformer-balanced inputs and outputs: punch, stability, and excellent integration into a high-end analog chain.
  • Built-in A/D and D/A converter with 24-bit digital outputs S/PDIF and AES up to 192 kHz, plus a VU and peak-to-peak meter designed to handle large dynamics.

A Manley Classic Designed as a High-End "Stereo Channel Strip"

The SLAM! ("Stereo Limiter And Micpre") is one of those studio machines designed to solve several critical needs in a single rack unit: a very high-level tube microphone preamp, a stereo limiter capable of taming the most violent transients, and a digital bridge to secure the recording. Its identity is clear: fast, firm, and spectacular on peaks, to the point of inspiring an attenuation option to protect the VU meters when the device is pushed to its limits.

In a sound-oriented range, the SLAM! positions itself as a central piece in the recording, processing, and printing chain: a tool inserted wherever you want to capture a performance with character, while maintaining headroom and precise level monitoring.

Who It's For and What It's For: Recording, Stereo Bus, and "Mix-Ready" Recording

The Manley SLAM! is aimed at demanding studios and home studios, sound engineers, and producers seeking premium analog processing before conversion. It excels on vocals (pop, rap, spoken word), bass (DI), guitars, overheads, or even a stereo bus when you want to lock peaks without losing energy. Thanks to its two limiter behaviors per channel, it can act both as a transparent "safety net" and as a deliberate densification tool.

Its major daily advantage: allowing you to print a solid sound right from the recording stage, with better-controlled dynamics and a more stable recording level, while preserving a sense of depth linked to the tube and transformer analog path.

Key Features: Tubes, Multi-Behavior Limiting, and Integrated Digital Section

Class A Tube Preamplification: Substance, Depth, and Precision

The SLAM! microphone preamps are designed to add definition without blur: present low-mids, a sense of "size" on the source, and musicality that remains usable in a modern mix. The 48 V phantom power and phase inversion facilitate use with a wide variety of microphones and setups (close miking, stereo pair, room, etc.). The presence of a high-impedance direct input also makes it an excellent partner for recording bass and instruments via DI.

Fast Limiting and Opto Limiting: Peak Control and Density

The SLAM! combines two limiting philosophies. On one side, a very fast FET-type section to catch aggressive transients (consonant attacks on vocals, pick slaps, snare hits). On the other, an optical-type (ELOP) section that works more on the "envelope" and can enhance the perception of level while maintaining a softer feel on the program. Used separately or in tandem depending on the configuration, these sections provide a palette ranging from discreet control to the "pressed" sound typical of high-end recording chains.

Conversion and Digital Outputs: Securing Recording and Integrating a Hybrid Workflow

With its 24-bit 192 kHz S/PDIF and AES formats, the SLAM! can integrate into a hybrid analog/digital setup. The idea is simple: benefit from the character of the preamp and limiting, then send a stable digital signal to the interface or main converter. The VU and peak-to-peak meters, designed for clear reading, help set gain and maintain precise headroom control, even when seeking heavy limiting.

Technical Specifications

Tubes

  • 2 x 12AT7WA
  • 2 x 6414 dual triodes

Analog Connectivity and I/O

  • Manley transformer-balanced inputs and outputs
  • Output impedance: 200 Ohms
  • Maximum output: +32 dBu, +30 dBv (into 1 kOhm load)

Microphone Preamplifier and Direct Input

  • Switchable 48 V phantom power
  • Switchable phase inversion
  • Gain: microphone preamp up to 60 dB max.
  • Gain: direct input up to 43 dB max.
  • Input impedance: microphone preamp 2000 Ohms
  • Input impedance: direct input 1 MOhm

Limiter

  • Limiter gain: 20 dB max.
  • FET attack: approximately 100 µs
  • FET release: 10 ms to 2 s
  • FET ratio: greater than 20:1
  • ELOP attack: approximately 10 ms for 6 dB gain reduction
  • ELOP release: 2.5 s
  • ELOP ratio: 10:1

Conversion and Digital Formats

  • S/PDIF and AES: 24 bits 192 kHz (conversion from 44.1, 48, 88.2, and 96 kHz)
  • Analog-to-digital conversion: 24 bits 96 kHz (currently)

Audio Performance

  • Frequency response: 5 Hz to 60 kHz
  • THD + noise: less than 0.05% at 1 kHz
  • Dynamic range: typical 115 dB

Power Supply, Format, and Dimensions

  • Power supply (120/240 V AC): 75 Watts
  • Rack format: 19 inches, 2 units
  • Size: 48.26 x 8.89 x 25.4 cm (19 x 3.5 x 10 inches)
  • Weight: 11.3 kg
Brand reference number: MSLAM
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