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From Our Research Team:

Audiophile 4-channel Pre!

The Benchmark PRE420 four-channel microphone preamplifier with an integrated stereo mix bus and stereo/mono solo bus in a sleek, 1RU chassis. Even high-end preamplifiers can mask subtle details because of intermodulation distortion, a symptom of RF interference and non-linear performance at ultra-sonic frequencies. The PRE420'scircuitry provides ultra-low distortion over a 500kHz bandwidth while maintaining RF-immunity in the most demanding environments. The PRE420 is equipped with Benchmark's exclusive CMF1 RF-filter. The CMF1 has been extensively tested and proven in Benchmark's MPS mic-pre series by experienced studio and remote recording engineers in heavy RF fields - such as venues in close proximity to broadcast antennas. This RF-immunity is coupled with ultra-low distortion performance at high-frequencies beyond the reach of most mic-pres, giving your audio remarkable realism. With amazingly low THD+N of 0.00024% (see specs), we welcome you to compare the PRE420's performance specifications with any other mic pre available.

Benchmark's proprietary MirrorPan circuitry minimizes distortion while ensuring constant-power panning with pin-point precision. MirrorPan's innovative mirrored-circuitry, from which the name is derived, eliminates the non-linear distortion caused by potentiometer wiper-current. The result is excellent channel seperation and remarkably accurate imaging. The center-detent position is factory calibrated for precise center-placement.

An elegant and completely unique feature set compliments the uncompromised sonic integrity of the PRE420. A solo section allows monitoring of any channel or combination of channels (with switchable stereo/mono) via control room XLR outputs and the integrated HPA2 - Benchmark's signature high-current, 0-Ohm headphone amplifier. The PRE420's main mix bus XLR outputs are monitored via a dual, variable intensity signal level meter and peak-warning indicator. Each of the four channels has an independent direct XLR output, a variable intensity signal level meter and peak-warning indicator, and MirrorPan control. Each channel features a precisely matched 41-position first-stage gain control factory preset to a maximium gain of 60dB (internally adjustable up to 70dB for special applications).

The convenient flexibility of these unique features in no way compromises the pristine audio path. The PRE420's RF-immune, wide-bandwidth circuitry faithfully delivers stunningly high resolution to all direct, stereo, control room, and headphone outputs.

Benchmark PRE420 Features:

• Ultra-low noise/distortion: (THD+N @ 22dB Gain 10Hz-20kHz = 0.00027%)
  
• RF-immune, wide bandwidth (500kHz)
  
• Stereo mix bus & isolated stereo/mono solo bus
  
• MirrorPan - Benchmark's proprietary zero-distortion, constant-power panning technology
  
• 4 direct XLR outputs, 2 control room XLR outputs, & 2 stereo XLR outputs
  
• HPA2 - Benchmark's signature high-current, 0-Ohm headphone amplifier with convenient, switchable mute control room output on headphone insertion.
  
• Adjustable peak warning indicator & variable intensity signal level meter on each channel & mix bus
  
• Independently switchable +48V phantom power, 40Hz switchable high-pass filter, & -20dB pad.

Benchmark PRE-420 - Ultra-quiet preamp for your studio!

Specification Detail Preamp Type Solid State Number of Channels 4 Phantom Power Yes EQ No Compression No Analog Inputs 4 x XLR (Mic) Analog Outputs 4 x XLR (Direct), 2 x XLR (Mix), 2 x XLR (Control Room) Digital Inputs No Digital Inputs Digital Outputs No Digtial Outputs Other I/O No Other I/O Computer Connectivity No USB Connectivity Rackmount Spaces 1U Height 1.75" Depth 11.75" Width 19" Weight 8.05 lbs. Manufacturer Part Number 500-07150-000

What Does "Special Order" Mean? A special-order product is one that we don't normally keep in stock. We order it from the manufacturer as soon as you order from us. We have great relationships with all the manufacturers we carry, so we can get your special order to you as fast as or faster than anyone else. Remember that special orders are non-returnable and non-cancelable, so make sure the item is right for you. A Sweetwater Sales Engineer can help you decide - call (800) 222-4700 for assistance!