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Manley SLAM! Stereo Limiter And Micpre with Digital I/O Interface

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Product 620911
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The Manley SLAM! Stereo Limiter and Mic preamp SLAM! stands for "Stereo Limiter And Micpre" and it pretty much describes what it will do to most VU m...Click To Read More About This Product

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A studio quality Stereo limiter/Mic preamp and digital interface.

The Manley SLAM! Stereo Limiter and Mic preamp
SLAM! stands for "Stereo Limiter And Micpre" and it pretty much describes what it will do to most VU meters. Manley had to put a switch on this limiter to drop its internal VU meters down 3 & 6dB to keep the poor little needles from bending”it'll get LOUD fast (hence the exclamation mark). And on top of being an amazing pair of (actually four) Limiters, and Class A tube mic preamps, it also has masters degrees in DI, AtoD and DtoA, VU and PPM but that was too much for an acronym.

When it comes to classic gear, especially classic limiters, we can all agree numbers like LA2s, 1176s, 2264s, and others come to mind. What if all those sounds were to be found in one stereo tube unit. Interested? Manley combined their favorite Electro-Optical circuit (ELOP) with a fast FET based brick-wall limiter reminiscent of some cool classics. And Manley added a sidechain filter that can remove low frequencies that makes it more useful for a variety of tasks, while retaining that easy, "it just works" quality that has made it a favorite for vocals everywhere. The FET-based limiter has different desirable characteristics that both optimizes the signal for digital recording, due to the brick-wall capability, and lets you dial in how clean or crunchy, or punchy, and how loud and proud you want it.

GET IN: The Manley Mastering SLAM! starts with tube Mic Preamps on both channels with switchable phantom power and phase reverse. Manley provided plenty of gain for you in this tube circuit, up to 60dB with 20dB more in the limiter”plenty for soft singers using low output ribbon mics. The input attenuator is right up front, like a variable pad so your loud rock 'n' rollers won't cause a problem either. Track direct with the Direct Instrument input or bring your line level inputs into the Manley Mastering SLAM! for processing.

Get it LOUD¦ two different and distinct limiters per channel:
The ELOP Limiter: Manley's beloved Electro-Optical Leveling Amplifier circuit, the ELOP, still the favorite for vocal tracking, shows up here with its switchable side-chain high pass filter making it much more useful for mixes and other tracks as well. One of the most appreciated aspects of Manley's original ELOP is the simplicity of a two knob limiter, which is optimum for demanding pro recording pressures. You can still grab two knobs and have complete control of level and dynamics and be ready to hit that record button. Intuitive controls and a straight ahead signal path through quality components simply works.

The FET Limiter: Here's a fast FET-based "brick wall" limiter that spans the range of clean predictable limiting to the grunge and gravel that other FET-based limiters are desired for. The FET RELEASE control allows you to dial up a variety of colors. The Manley Mastering SLAM even has a "CLIP" setting that provides as round a shape as has ever been available. (Read more below about the CLIP settings.) Manley aimed at "sound" first, then experimented with circuits until the folks at Manley heard what they wanted discovering fresh approaches that provide a very wide range of useful dynamic control. For example, you can set up for a fast brick wall limiter with slower releases for minimum artifacts, or go with the faster releases to get some crunch and then get extreme loudness. The Attack control is unusual too providing the sonic control common with its historic brothers but very unusually retaining the zero overshoot "none-shall-pass" brick wall that defines a real limiter. And it's punchy! As the saying goes, "Louder is better." The Manley SLAM! optimizes levels to analog to digital converters with ballz, warmth and loudness verging on silly or just clean and safe.

What is especially nifty is the ability to use the ELOP and FET limiters together at the same time dialing in whatever amounts of each effect you like. Every limiter has its own character or sound and here Manley has combined two powerful world-class tools that can be uniquely blended and mixed to taste and purpose. Even the metering is appropriate for each limiter so you can easily see how each signal processor is contributing.

Metering on the Manley SLAM! is exceptional. The two full-size real VU meters show you the raw input levels, the final output levels, and the ELOP Limiter gain reduction in the traditionally preferred format for visually displaying apparent loudness. VU's are cool. Noticing how mastering engineers often need a switchable pad on their VU's because the "optimized" levels tend to pin the needles in the red, the Manley SLAM! VU's also have a 0, -3dB, -6dB switch to help with this situation. There are also very fast and super accurate multi-color LED ladder peak meters that display the input and output levels and the FET gain reduction, and some combinations. They will do Peak, Peak Hold timed, and Peak Hold until reset, and also allow you to manually set where the individual bars change colors to match your other gear. And with maximum clean I/O levels of +30 dBu, it is a lot more likely you will use these meters to see what's clipping downstream. It probably won't be the Manley tube line drivers inside.

The back panel of the stereo limiter and mic preamp should keep everybody happy. All the usual XLR's for transformer balanced I/O and ¼" phone jacks for direct unbalanced I/O. The SLAM! has four TRS jacks for inserting external EQ into the sidechains and another connector for linking multiple units for surround. It's all here.

The SLAM! also seems a natural mastering tool. The FET limiter works great on mixes, and the ELOP now has a high pass filter switch that is spot-on for mastering. Manley offer a mastering version, which eliminates the mic preamps, adds detented controls replacing the pots, and provides extra metering options. Manley compressors and EQs seem to be the most popular pieces of gear ever when it comes to mastering. The ultimate analog rack for the final important touches to the mix would have include the SLAM!, The Variable Mu and The Massive Passive. Combine this with some digital processors of similar caliber and one has a respectable and very effective set of mastering tools. That Manley rack plus some Manley Microphones would make an ultimate stereo recording chain too. Recording equipment you'll want to keep for a lifetime.

Digital I/O Interface
SLAM! Stereo Limiter and Mic preamp with Digital I/O Interface has a slot in the back for Manley's optional 24 Bit/96KHz Analog to Digital converter and 24 Bit/192KHz Digital to Analog converter card. This allows one to record directly to the computer or workstation and provided a convenient way to use a digital insert to jump into the analog realm and back. An AES digital input receives the stereo digital signal to convert to analog for processing by the SLAM! when the DAC input was selected. Or this killer DAC's Output could be used for monitoring, listening, or to be sent to some other analog processors or tape machines.

The digital inputs and outputs are on XLR's for AES/EBU standards and there is also a BNC for Word Clock and Super Clock input. The BNC was added for users' convenience and not just to help the unit's jitter performance. The
jitter spec is "Almost Zero" and just about unmeasurable regardless of whether it is locked to its own crystal, the AES input, or the Word/Super Clock. A 7-way rotary switch selects 44.1, 48, 88.2 or 96K, AES IN, Word Clock and Super Clock, for the AES output data rate. Notice we didn't say "sample rate". This ADC and DAC uses the internal 192K sample rate! Truly amazing sample rate converters based on SHARC DSPs are used to almost eliminate (not just reduce) jitter and provided the sonic benefits of 192K sampling, even at 48K or 44.1 data rates. These are very fast exceptional sounding world-class converters.

The ADC also has a pair of switches for DITHER and NOISE SHAPING and WORD
LENGTH, plus something unusual: a filter select switch. Manley believe that the manufacturer's choice of filter is one of the biggest differences that affects the sound of a converter, so they give the user 3 choices, 80K minimal effect, 20K Analog, (a passive filter similar to the 18K on the Massivo), and a 20K Digital FIR for something comparable to other converters. There are also 3 filters on the DAC side set for 20K, 40K gentle, and 80K. All of these are passive and quite subtle and useful. There is a dedicated balanced +4 phone jack output for the DAC, so these can be tube-converters or high end solid state. The ADC is similar, but tube or passive(!) front end, that allowed a mastering EQ to be cleverly used in this chain.

  • DAC: AES 24Bit 192KHz upsampling from 44.1, 48, 88.2, & 96KHz
  • A to D: 24Bit 96KHz
  • Input Tubes: 2 x 12AT7A NOS GE specially selected by Manley Labs for lo-noise and stable bias
  • Output Tubes: 2 x 6414W NOS USA dual triodes
  • I/O: MANLEY transformer coupled Balanced Inputs and Outputs
  • Micpre: Selectable 48V phantom power and PHASE REVERSE
  • Gain: 60dB max Micpre, 43dB max DI, 20dB max Limiter Gain
  • Input Impedance: 2000OHMS Micpre, 1MegOHMS DI
  • FET Limiter: Attack: approx. 100 S; 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 1KOHMS load)
  • THD+N: <.05% @ 1KHz
    Dynamic Range: 115dB typical
  • Output Impedance: 200OHMS
  • Power Consumption Slam! Digital:
  • 0.688 Amps (688 milliamps = 688mA) @ 120V = 82.56 Watts
  • 0.344 Amps (344 milliamps = 344mA) @ 240V = 82.56 Watts
  • Outboard Power Supply is 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 Voltage Frequency: 50 œ 60Hz
  • Size: 19" X 12" X 3.5" (occupies 2u)
  • Shipping Weight: 25 lb.
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