RDL HD-MA 35A 35 Watt Mixer Amplifier with Power Supply

RDL HD-MA 35A 35 Watt Mixer Amplifier with Power Supply

RDL HD-MA 35A 35 Watt Mixer Amplifier with Power Supply

B&H # RDHDMA35A MFR # HD-MA35A
RDL HD-MA 35A 35 Watt Mixer Amplifier with Power Supply

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Product Highlights

  • Constant Voltage Output 25, 70 or 100 V
  • Suited for Commercial Audio Installation
  • Dual Zone Configuration
  • Zone 1: 35 Watts, Zone 2: 4 Watts
  • Three Audio Inputs
  • Paging Input with Volume Control
  • Audio Ducking During Paging
  • Energy Efficient
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  • 1Description

The RDL HD-MA35A 35 Watt Remote Mixer Amplifier is a versatile audio amplifier, mixer and paging system targeted for background music, call on-hold music, and commercial audio applications. The amplifier features two zones with Zone 1 delivering 35 watts and support for balanced and unbalanced inputs. This output provides a constant voltage (25 V, 70 V or 100 V). Zone 2 is reserved for an 8 ohm speaker or 600 ohm telephone equipment, and capable of 4 watts.

The unit is built to high energy efficiency standards with automatic power up when signal is present, and a threshold adjustable "sleep mode" that powers down the amplifier when there is no audio signal. The HD-MA35A prioritizes paging audio with adjustable muting and ducking functions that lower or interrupt background music during pages. The amplifier is more than ideally suited for commercial retail, offices, warehouses, restaurants, bars, and various other environments that require a versatile and efficient audio paging amplifier

Three inputs with individual front-panel volume controls
Bass and Treble tone controls
Designed for background music with paging and music-on-hold
Master volume VCA controlled with remote adjustment capability
Manual or automatic (VOX) priority ducking
Balanced inputs and amplified outputs on detachable terminal blocks
Unbalanced inputs and outputs on RCA jacks
Includes power supply
High-efficiency Class D operation
UPC: 813721010773
In the Box
RDL HD-MA 35A 35 Watt Mixer Amplifier with Power Supply
  • Power Supply
  • 3-Year Limited Warranty
  • Table of Contents
    • 1Description
    Amplifier Zone 1 (Main): 35 W RMS, front-panel mixer (user controls)
    Zone 2: 2 W RMS (8 Ohms), rear-panel mixer (trimmers)
    Audio Inputs Balanced, mic or line switch selectable on terminal block; 2, unbalanced stereo summing inputs on RCA jacks
    Maximum Input Level Mic input: -11.5 dBu; Balanced line input: + 19 dBu; Unbalanced Inputs: + 9 dBV (+15.5 dBV, one input); (for 1% THD+N at output)
    Phantom Power 24VDC (IEC 1938: 1996-12), switch-selectable for the mic input
    Attenuation / Gain
    Ducking/Muting Actuation: Automatic (Input 1 VOX: rear-panel adjustable signal threshold with LED indicator) or Manual (contact closure to ground)
    Ducking/Muting Release Delay: 4 seconds, nominal
    Ducking/Muting: Switch-selectable for inputs 2 and/or 3, 25 dB ducking attenuation, nominal
    Power 24VDC, 100 mA maximum, ground-referenced
    Power Supply (included): 100 to 240 Vac, 50-60 Hz, 50 W; 24VDC output to amplifier chassis
    Input Level (to cross compressor threshold equaling 23 W amplified output) Mic input: -50 dBu (2.5 mV), (front panel gain at max.) Balanced line input: -21 dBu (70 mV), (front panel gain at max.) Unbalanced Inputs: -15 dBV (180 mV, front panel gain at max., both inputs driven)
    Noise Noise (line output): Mic input: -68 dB, Balanced line input: -72 dB (below compressor threshold at max gain); Unbalanced inputs: <-85 dB (max gain)
    Noise (amplified outputs): Mic input: -68 dB, Balanced line input: -72 dB (below compressor threshold at max gain); Unbalanced inputs: <-75 dB (max gain)
    THD < 0.5% (1 kHz at compressor threshold, main amp output); < 0.25% (line output, main)
    CMRR > 50 dB (50 Hz to 120 Hz); Balanced line input: > 80 dB (50 Hz to 120 Hz, transformer-coupled input)
    Compressor Threshold 2 dB below rated output, automatically adjusting attack and release times
    Frequency Response Frequency response (mixer): Mic to line output: ±1.5 dB (40 Hz to 25 kHz); Balanced line input to line output: ±1 dB (20 Hz to 20 kHz); Unbalanced line input to line output: ±0.5 dB (20 Hz to 20 kHz)
    Frequency Response (Zone 1 amplifier): ±1 dB (50 Hz to 20 kHz)
    Frequency Response (Zone 2 amplifier): 8 Ohm: ±1.5 dB (50 Hz to 20 kHz); 600 Ohm: ±1.5 dB (30 Hz to 18 kHz)
    Tone Controls ±10 dB @ 10 kHz, ±9 dB @ 100 Hz (front-panel) with center detent
    Audio Outputs Audio Outputs x2: +4 dBu nominal (1.23 V), balanced, terminal block (FLAT); 0 dBu nominal balanced, terminal block (zone 2 mixer, 600 Ohm output)
    MOH Output: 0 dBu nominal (775 mV), 600 Ohm transformer-isolated, >16 dB headroom
    Amplifier Output Power Amplifier Outputs (2): Zone 1 (main, <1% THD+N): 35 W RMS (4 Ohms), 32 W (8 Ohms) on detachable terminal block (switch-selectable 4 or 8 Ohm impedance); Zone 2: 2 W (8 Ohms, on detachable terminal block)
    Indicators Front-panel: Signal present (3; 1 per input, green), Compressor activity (red), Power (bright=on, dim=standby, blue); Rear-panel: Ducking/muting threshold (yellow)
    Controls Front-panel controls (6): Zone 1 (main) mixer level controls (3, inputs 1 through 3), EQ (2, bass and treble), Power (latching pushbutton, on/standby)
    Rear-panel controls (9): Mic/Line switch (Input 1), Input 1 ducking/muting detector sensitivity trimmer, Phantom voltage switch (Input 1), Ducking control switches (2, to duck inputs 2 and/or 3), Zone 2 mixer level controls (3, inputs 1 through 3), HD-MA35: Output impedance switch 4 or 8 Ohms
    Temperature 32° F to 122° F Maximum; 68° F Recommended (0° C to 50° C Maximum; 20° C Recommended)
    Dimensions (HxWxD) 3.5 x 8.5 x 6.75" (8.89 x 21.6 x 17.1cm)
    Weight 4.5 lb (2kg)
    Packaging Info
    Package Weight 7.4 lb
    Box Dimensions (LxWxH) 11.9 x 9.5 x 4.2"

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