RDL HD-MA35U 35-Watt Mixer Amplifier

RDL HD-MA35U 35-Watt Mixer Amplifier

RDL HD-MA35U 35-Watt Mixer Amplifier

B&H # RDHDMA35U MFR # HD-MA35U
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Expected availability: 7-10 business days

Product Highlights

  • For Background Music with Paging, MOH
  • 4 Input Channels with Independent Volume
  • 2x Output Power Amplifier Zones
  • Manual or Automatic Ducking
  • Automatic Sleep Mode
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This item is noncancelable and nonreturnable.

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RDL HD-MA35U overview

  • 1Description

The HD-MA35U 35-Watt Mixer Amplifier from RDL features dual-zoned amplifier outputs and is designed for use in applications requiring background music with paging or music on hold functionality. The unit has 4 audio inputs each with independent volume controls, including 2 mic- or line-level inputs on terminal blocks and 2 stereo RCA line inputs that are each summed to mono.

The HD-MA35U features 2 mixers. Its Zone 1 mixer provides 35 watts of amplifier output for background music use, while the Zone 2 mixer has 4 watts of output on a 600 Ohm connection for music on hold scenarios. Additionally, a line-level output allows for connectivity to a separate power amplifier.

Four 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
Automatic sleep mode for energy savings
In the Box
Table of Contents
  • 1Description

RDL HD-MA35U specs

Zones Amplifier Zones:
Zone 1 (Main): 35 W RMS, remote-controlled mixer (3 user controls) with paging input level control on front panel
Zone 2: 4 W RMS (8 Ω), rear-panel mixer (trimmers)
Audio Inputs 2x balanced, mic or line switch selectable on terminal blocks
2x unbalanced stereo summing inputs on RCA jacks
1x unbalanced amp in on RCA jack
Gain Adjustment Inputs 1 and 2: Rear-panel single-turn trimmer
Maximum Input Level Mic Inputs: -9 dBu
Balanced Line Inputs: + 20 dBu
Unbalanced Inputs: + 5 dBV (+11 dBV, one input), (for 1% THD+N at output)
Phantom Power 24 VDC (IEC 61938: 2013), switch-selectable for each mic input
Ducking 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: Rear-panel single-turn trimmer, adjustable 2 to 6 seconds
Effects Loop Unbalanced RCA jacks (preamp output from main mixer, input to power amplifier)
Power Output External RDL Module Power Output: 24 VDC, 100 mA maximum, ground-referenced
Input Level To Cross Compressor Threshold Equaling 23 W Amplified Outputs:
Mic Inputs: -50 dBu (2.5 mV), (front panel and rear trimmer at max.)
Balanced Line Inputs: -21 dBu (70 mV), (front panel and rear trimmer at max.)
Unbalanced Inputs: -15 dBV (180 mV), (front panel and rear trimmer at max., both inputs driven)
Noise Line or Amplified Outputs:
Mic or Balanced Line Inputs: -70 dB (below compressor threshold at max gain)
Unbalanced Inputs: <-75 dB (max gain)
THD + N < 0.5% (1 kHz at compressor threshold, main amp output); < 0.1% (line output, main)
CMRR Mic Inputs: > 50 dB (50 Hz to 120 Hz)
Balanced Line Inputs: > 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 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)

Amplifiers:
50 Hz to 20 kHz ±1 dB
Tone Controls ±10 dB @ 10 kHz, ±9 dB @ 100 Hz (front-panel) with center detent
Audio Output -10 dBV nominal (316 mV), dual mono unbalanced RCA (main mixer; FLAT or EQUALIZED, switch-selectable on rear panel)
0 dBu nominal balanced, terminal block (zone 2 mixer)
MOH Output 0 dBu nominal (775 mV), 600 Ω transformer-isolated, 16 dB headroom
Amplifier Output Zone 1 (main, <1% THD+N): 35 W RMS (4 Ω), 32 W (8 Ω) on detachable terminal block (switch-selectable 4 or 8 Ω impedance); Zone 2: 4 W (8 Ω, on detachable terminal block)
Indicators Front-Panel: Signal present (4; 1 per input, green), Compressor activity (red), Power (bright=on, dim=standby, blue); Rear-Panel: dual-LED VU meter (for inputs 1 and 2, green/red), Ducking/muting threshold (yellow)
VCA Zone 1 (main) inputs 2, 3 and 4, 0 to 10 VDC control, RJ45 (compatible with RDL VCA wall controls)
Controls Front-Panel Controls:
Zone 1 (main) paging level control (input 1 to 4), EQ (2, bass and treble), Power (momentary pushbutton, toggle on/standby)

Rear-Panel Controls:
Gain trimmers (2, input 1 and 2), Mic/Line switch (2, input 1 and 2), Zone 1 line output pre/post-EQ switch, Effects loop bypass switch, Sleep (standby) mode delay (4 binary switches), Input 1 ducking/muting detector sensitivity trimmer, Phantom voltage switches (2, input 1 and 2), Ducking control switches (3, to duck inputs 2, 3, and/or 4), Tone control paging bypass (includes or excludes input 1 from tone controls), Zone 2 mixer level controls (4, inputs 1 through 4)
Sleep Mode Power Consumption: < 1 W (amplifier and included power supply)
Delay: 10 minutes to 2 hours (switch-selectable in 10 minute increments)
Disable: Selectable
Active Mode Delay 2 seconds (nominal) after input audio detected
Audio Detector Threshold -80 dBu mic (at max input gain), -55 dBu balanced line (at max input gain), -42 dBV unbalanced
Ambient Operating Environment -32° to 122°F (0° to 50°C) Maximum; 68°F (20°C) Recommended
Dimensions (LxWxD) 8.6 x 3.3 x 9" (21.9 x 8.3 x 22.8 cm)
Packaging Info
Package Weight 8.105 lb
Box Dimensions (LxWxH) 17.75 x 9.125 x 3.938"

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