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RDL HR-MP2A Dual Microphone Preamplifier

RDL HR-MP2A Dual Microphone Preamplifier

SoundPro Item: 77288 | Part Number: HR-MP2A

$483.35
$644.47 $483.35
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MSRP: $644.47 | MAP: $483.35

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  • Two Independent Microphone Preamplifiers
  • Balanced XLR Microphone Inputs
  • Independent Controls for Each Preamplifier
  • Front-Panel 20 to 60 dB Gain Control
  • Switch-selectable 48 Volt Phantom
  • Switch-Selectable 15 dB Input Pad
  • Switch-Selectable Polarity Reversal
  • Switch-selectable 48 Volt Phantom for Both Preamplifiers
  • CLIP Indicators for Peaks 3 dB Below Clipping
  • Balanced Line-Level Outputs
  • Each Output Allows Balanced or Unbalanced Connection
  • Each Preamp Output on 1/4” TRS or Detachable Terminal Block
  • Separate Summed Output 1 + 2 on Detachable Terminal Block
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The HR-MP2A is a dual channel microphone preamplifier with line-level outputs. Each section provides identical rear-panel signal connections and front-panel controls. Each preamplifier is equipped with a front-panel INPUT PAD switch that allows the operator to attenuate the input signal by 15 dB prior to the preamplifier input stage, increasing the maximum input level from +5 dBu (attenuator out) to greater than +20 dBu. A POLARITY switch provides signal polarity reversal if needed. The GAIN control provides continuous adjustment between 20 dB and 60 dB. A CLIP LED flashes if a signal peak is within 3 dB of clipping. The trigger threshold of the CLIP LED is 17 dB above a normal +4 dBu output. The HR-MP2A offers 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, allowing the HR-MP2A to be operated as a stereo preamplifier or as two separate mono preamplifiers. Each preamplifier provides two balanced line-level output formats: Detachable terminal block and 1/4” TRS. A separate summing amplifier provides a combined mono output on a line-level detachable terminal block. Balanced outputs may be wired unbalanced. The rear panel also provides a detachable terminal block and a power input jack to connect 24 Vdc power. The HR-MP2A is constructed in a durable half-rack-width shielded metal enclosure for free-standing use or for mounting in an RDL rack adapter, available separately.

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Specifications

Inputs (2):
XLR (3 pin, rear panel,1=GND, 2+, 3-)
Input level (for +4 dBu output):
-56 dBu to 0 dBu (maximum gain without pad, minimum gain with pad)
Maximum Input Level:
>+5 dBu (input pad disabled), +22 dBu (input pad enabled)
Input Impedance:
> 1 kΩ balanced
Phantom power:
Switchable (both preamplifiers) 48 V phantom (IEC 61938: 2013)
Input pad (2):
15 dB nominal (1 per preamplifier)
Outputs (5):
Each preamplifier (rear-panel): Detachable terminal block, 1/4” TRSMono sum (rear-panel): detachable terminal block
Output level:
+4 dBu balanced, -4 dBV unbalanced; +24 dBu maximum balanced
Output Impedance:
150 Ω balanced
Channels:
2 (1 and 2; may be used for stereo or as two separate mono preamplifiers)
Gain Trim (2):
20 dB to 60 dB (front panel adjustable; one for each preamplifier)
Frequency Response:
10 Hz to 70 kHz (± 0.5 dB)
THD:
Below noise floor
CMRR:
> 80 dB (50 Hz to 5 kHz)
Residual Noise (below +4 dBu output):
<-85 dB (20 Hz to 20 kHz, 40 dB gain, 150 Ω source); <-70 dB (20 Hz to 20 kHz, 60 dB gain, 150 Ω source)
Crosstalk:
Below noise floor
Indicators (3):
POWER LED (blue), CLIP (2, red)
Power Requirement:
24 Vdc @ 165 mA (190 mA with phantom), Ground-referenced
Mounting:
Rack-mount using optional rack adapters such as HR-RA2; or operate free-standing (feet included)
Dimensions:
Height: 1.7 in, 4.3 cm; Length: 8.6 in, 20.6 cm; Depth: 4.59 in, 11.66 cm
Package Type:
Cardboard Box
Tariff code:
8543.70.9860
WEEE weight:
2.32 lbs.
Shipping Weight:
2.68 lbs.
Package Dimensions:
9.5 x 7 x 2.25 in.

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