SLAM! stands for "Stereo Limiter And Micpre" and it pretty much describes what it will do to most VU meters. We 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, 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? We combined our favorite Electro-Optical circuit (ELOP®) with a damn fast FET based brick-wall limiter reminiscent of some cool classics. And we 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 optimize the signal for digital recording, due to the brick-wall capability, and let you dial in how clean or crunchy, or punchy, and how loud and proud you want it.
 
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
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.