MCM Electronics

Stereo Phono RIAA Preamplifier By Applied Research Technology (DJPRE-2) MCM Part #555-2716

5 stars 1 review
MSRP: $65.00
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Specifications Top

Phono Preamplifier

Since newer receivers typically do not include magnetic phono connection, this pre—amplifier is required to connect a turntable to a conventional line level input. It is also necessary if playing LP's through a computer sound card, mixing console, or other professional equipment. In addition to providing the required gain, this unit also adds necessary RIAA equalization to compensate for the industry standard EQ curve utilized on LP's.

The DJ PRE II acts as an interface between your turntable and your audio recording / playback system. The analog input capacitance can be switched between 100pF and 200pF to optimize your phono cartridge response. A switchable low cut filter removes turntable rumble while leaving the audio pristine. The front gain trim control and signal/clip LED allow you to optimize the preamp's gain for a wide range of input sources. The built-in low noise phono preamp circuitry is highly accurate and precisely conforms to the RIAA standard. The line output jacks are low impedance and can be used with any sound card.

Housed in an all aluminum black anodized case, the DJ PRE II can be powered by a wide variety of external supplies. If you need to amplify and EQ your vinyl records to interface with your audio workstation, sound card, home stereo system or main monitor system, the DJ PRE II gives you flawless audio reproduction in a rugged and reliable package.

  • L/R RCA inputs and outputs
  • Adjustable ±10dB gain
  • Selectable 100pF/200pF input capacitance
  • Switchable 3dB low cut at 22Hz
  • Signal clip indicator
  • Turntable ground lug
  • Power requirements: 7~12VDC or 9~12VAC
  • AC adapter included
  • Dimensions: 1.75" (H) x 4.2" (W) x 3.5" (D)

Signal To Noise Ratio > 90dB below clipping
Frequency Bands FILTER TYPE: Switchable, Low Cut, -3dB @22Hz
Maximum Gain 45dB @1KHz
Input Impedance 47k Ohms in parallel with either 100pF or 200pF
Maximum Input Level 40mVrms @1KHz
Maximum Output Level +6dBu (1.4Vrms)
Input Connectors RCA
Output Connectors RCA
Total Harmonic Distortion .01% Typical @1KHz
Frequency Response 10Hz -50KHz, +/-.5dB
Power 7-12V DC or 9-12V AC @150mA
Dimensions 1.75"H x 4.2"W x 3.5"D
Weight 1.25 lbs (.57kg)
Part Numbers
MCM Part #:555-2716
Applied Research Technology Part #:DJPRE-2
Package Specifications & Dimensions
Weight:1.69 lbs.
Warranty:365 days
Need to Return?
Length:14.5 in.
Width:5.5 in.
Height:2.25 in.
Shipping Information
Extra Shipping Charge:No
Drop Ship:No

Product Reviews Top

  • by radiocowboy10

    on 8/23/2010

    Wide range-great value!

    Overall: 5 out of 5

    This little pre-amp provides a wide range of amplification settings for an assortment of cartridges in your arsenal. If you do vinyl-to-digital transfers as much as I do with cartridges ranging from the new Shure DJ M-44 to the old Stantons, you'll appreciate this amp's ability to accommodate the wide range of outputs of these cartridges, even at higher RPMs. Response is remarkably flat. This pre-amp DOES NOT color the cartridge sound. The rolloff switches are transparent too, and do not color the music and they perform well. Some other reviews claim they don't notice a difference when switching them in and out, but if you have a DC coupled amp, you will hear a difference in the vinyl rumble for sure. I definitely notice a sweet, subtle difference of highs when the capacitive line-length loading switch is moved in or out. They can be switched in or out actively without "thumping" the audio. Whomever designed this little unit was thoughtful in that regard. The only complaint I have about it, is that it's power light is an annoyingly bright blue LED that practically acts as a nightlight for my studio. It's an extremely bright light that makes it hard to see the settings on the unit. I had to tape a piece of paper over it to throttle it back, so I could see my settings. Otherwise, for the price, a super-quiet, transparent pre-amp that delivers wide dynamic range with no hum, hiss or artifacts, and the ability to dial back the hot, new DJ M-44 from Shure is a blessing! The overload LED is accurate too, it's green when active signal is present (off when it's not), turns yellow to warn of getting into the median range and turns red to indicate clipping. Even when it just turns red the clipping is not audible, so the calibration must be set so the unit just starts to indicate red for a warning that you're about to clip the audio. Overall, a terrific little amp. It's small enough, you could probably velcro it right to the side of your TT for ease of access. Otherwise, it will stand on its side in your TT alcove just fine as long as it can lean against a wall. The wall-wart that runs it is standard fare, and is cool and quiet too.

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