RDL HR-MP2 - Microphone Preamplifier

RDL HR-MP2 - Microphone Preamplifier

Alternate views of item shown


(Alternate views of item shown)

Now Viewing:

Special Order
Ship Time: 7-10 business days 
Free Standard Shipping
Not eligible for free Expedited Shipping

Product Highlights

  • Dual Channel
  • 40dB Gain
  • 6dB/Octave Low-Cut Filter
  • Polarity Switches
  • XLR, 1/4" TRS, Terminal Block Outputs
  • Separate Mono Summed Output
  • 24V or 48V Phantom Power
  • Dual-LED VU Meters
  • Half-Rack Enclosure
Show moreShow less

You Pay: $317.00

Questions? Ask our experts:

The HR-MP2 from RDL is a dual channel microphone preamplifier housed in a half space rack-mount chassis. The preamp features exceptional input headroom, wide flat frequency response, and extremely low noise with very high common-mode signal rejection. Total harmonic distortion and crosstalk are below the noise floor.

Each section provides identical connections and controls. A low-cut filter, a 15dB pad, and polarity inverse can all be enabled, while phantom power can be switched between Off, 24VDC or 48VDC. Dual-LED VU meters are provided adjacent to each gain control. A separate clip LED flashes when a signal peak is within 3dB of clipping.

The HR-MP2 can be operated as a stereo preamplifier, or as two separate mono preamplifiers. Balanced line-level outputs include XLR, detachable terminal block, and 1/4" TRS phone connectors, which can be wired unbalanced. A separate summing amplifier provides a combined mono output on a line-level detachable terminal block, and a power input jack allows for connecting 24VDC power.

Two independent microphone preamplifiers
Balanced XLR microphone inputs
Independent controls for each preamplifier
Switch-selectable low-cut filter
Front panel 20dB to 60dB gain control
Switch selectable 24 or 48V phantom power
Switch selectable 15dB input pad
Switch selectable polarity reversal
Dual-LED VU meter for each preamplifier
CLIP indicators for peaks 3dB below clipping
Balanced line-level outputs
Each output allows balanced or unbalanced connection
Each preamp output on XLR, 1/4" TRS or detachable terminal block
Separate summed output 1 + 2 on detachable terminal block
Number of Channels 2 (1 and 2 may be used for stereo, or as two separate mono preamplifiers)
Inputs 2 x XLR
Input Impedance < 1kΩ balanced
Input Level For +4dBu output: -56dBu to 0dBu (maximum gain without pad, minimum gain with pad)
Maximum Level: >+5dBu input pad disabled, +22dBu input pad enabled)
Gain Range 20dB to 60dB (front panel adjustable for each preamplifier)
Pad Input: 15dB nominal (1 per preamplifier)
Output 2 x XLR
3 x Detachable terminal block
2 x 1/4" TRS phone
Output Impedance 150Ω balanced
Output Level +4dBu balanced, -4dBV unbalanced
+24dBu maximum, balanced
Phantom Power Switchable 24V or 48V phantom
Multi Function No
Frequency Response 10Hz to70 kHz, +/-0.5dB, (flat); -3dB @ 80Hz (low-cut filter enabled)
THD Below noise floor
CMRR >80dB (50Hz to 5kHz)
Noise Residual Noise (below +4dBu output): <-85dB (20Hz to 20kHz, 40dB gain, 150Ω source); <-70dB (20Hz to 20kHz, 60dB gain, 150Ω source)
Crosstalk Below noise floor
Indicators 1 x Blue POWER LED
2 x Green/Red Dual-LED VU meter
2 x Red CLIP
Power Requirement 24VDC @ 175mA (200mA with phantom), ground-referenced
Dimensions (WxDxH) 8.6 x 4.59 x 1.7" (206 x 117 x 43mm)
Weight Not specified by manufacturer
Specialties Rack-mount using (optional) rack adapters such as HR-RA2, or operate free standing (feet included)
Packaging Info
Package Weight 2.75 lb
Box Dimensions (LxWxH) 10.2 x 7.4 x 2.4"
RDL HR-MP2 - Microphone Preamplifier
  • 4 x Rubber Feet
  • Three (3) Year Warranty
  • Be the first to review this item


    See more
    Kopul - Studio Elite 4000 Series XLR M to XLR F Microphone Cable - 3' (0.91 m), Black
    • You Pay: $15.99

    Bulk Raw Cable

    See more
    Canare - L-4E6AT Star Quad Microphone Cable (656'/200 m)
    • You Pay: $215.07

    Rack Accessories

    RDL - HR-RA2 Rack Adapter for HALF-RACK Series
    • You Pay: $46.95
    Special Order ?
    This item is usually Drop Shipped from the MFR/Distributor within 7-10 business days (subject to availability). Your order will be charged at the time of placing the order with the MFR. Item is non-cancelable and non-returnable.
    PayPal Orders
    PayPal orders will be charged when the order is placed.
    International Orders
    For international orders, credit cards will be charged at the time you place your order.
    View all Accessories
    See any errors on this page? Let us know.