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General Information
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Manufacturer
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RDL
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Manufacturer Part Number
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RDL-HDMA35UA
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Product Name
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Mixer
Amplifier 35 Watt, 25 70 100 V with Power Supply |
| UPC Code |
813721010711
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Overview
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The HD-MA35UA is a four
input audio mixer amplifier for systems demanding the broadest
range of features and the highest energy efficiency. Two output
power amplifier zones, 35 watts (Zone 1) and 4 watts (Zone 2), are
driven from high-efficiency Class D amplifier stages
The mixer and amplifier sections all normally shut down (standby
“sleep” mode) when audio is absent and automatically turn on when
needed. The Zone 1 amplifier output level may be VCA controlled
using various optional RDL remote controls, or by industry
standard 0 to 10 Vdc or 0 to 10k ohm controls
This output provides a constant voltage output (25 V, 70 V or 100
V). The Zone 2 amplifier output drives an 8 ohm speaker and or 600
ohm telephone equipment
The HD-MA35UA is engineered, tested and manufactured in the U.S.A.
to strict energy conservation standards. The unit consumes less
than 1 watt of mains power in standby mode, and meets power
amplifier efficiency specifications with analog-filtered Class-D
digital output stages for both power amplifier output zones and
for the 600 ohm output
The HD-MA35UA features two mixers. The Zone 1 mixer is located on
the front-panel providing user level and tone controls for the 35
watt amplifier output
The tone controls adjust the equalization at the Zone 1 amplifier
output and can be switch selected on the rear panel to also adjust
the equalization at the line-level output
The Zone 2 mixer on the rear panel provides level trimmers
normally set by the installer to provide music-on-hold and or for
background music in a small zone equipped with an 8 ohm speaker.
The Zone 2 section includes a 4 watt amplifier, a 600 ohm
transformer-balanced MOH output, and an active balanced line-level
output that may be used to feed another audio power amplifier
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Features
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- 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 meets
strictest energy saving standards
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Specifications
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Amplifier
Zones (2)
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Zone
1 (Main): 35 W RMS, front-panel mixer (user controls); Zone 2: 4 W
RMS (8 Ohms), rear-panel mixer (trimmers)
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Audio
Inputs (5)
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2,
balanced, mic or line switch selectable on terminal blocks; 2,
unbalanced stereo summing inputs on RCA jacks; 1, unbalanced amp
in on RCA jack
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Gain
Adjustments (2)
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Inputs
1 and 2: Rear-panel single-turn trimmer
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Maximum
Input Level
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Mic
Inputs: -9 dBu; Balanced line inputs: + 20 dBu; Unbalanced Inputs:
+ 5 dBV (+11 dBV, one input); (for 1 percent THD+N at output)
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Phantom
Voltage
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24
Vdc (IEC 61938: 2013), switch-selectable for each mic input
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Ducking/Muting
Actuation
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Automatic
(Input 1 VOX: rear-panel adjustable signal threshold with LED
indicator) or Manual (contact closure to ground)
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Ducking/Muting
Release Delay
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Rear-panel
single-turn trimmer, adjustable 2 to 6 seconds
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Ducking/Muting
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Switch-selectable
for inputs 2, 3 and/or 4, 25 dB ducking attenuation, nominal
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| Effects
Loop |
Unbalanced
RCA jacks (preamp output from main mixer, input to power
amplifier)
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External
RDL Module Power Output
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24
Vdc, 100 mA maximum, ground-referenced
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Input
level (to cross compressor threshold equaling 23 W amplified
output)
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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)
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Noise
(line or amplified outputs)
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Mic
or Balanced line inputs: -70 dB (below compressor threshold at max
gain); Unbalanced Inputs: Less than-75 dB (max gain)
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THD+N
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Less
than 0.5 percent (1 kHz at compressor threshold, main amp output);
Less than 0.1 percent (line output, main)
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CMRR
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Mic
inputs: Greater than 50 dB (50 Hz to 120 Hz); Balanced line
inputs: Greater than 80 dB (50 Hz to 120 Hz, transformer-coupled
input)
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Compressor
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Threshold
2 dB below rated output, automatically adjusting attack and
release times
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Frequency
Response (mixer)
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Mic
to line output: More or less 1.5 dB (40 Hz to 25 kHz); Balanced
line input to line output: More or less 1 dB (20 Hz to 20 kHz);
Unbalanced line input to line output: More or less 0.5 dB (20 Hz
to 20 kHz)
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Frequency
Response (amplifiers)
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Constant
voltage: More or less 3 dB (50 Hz to 18 kHz); 4/8 Ohm: More or
less 1 dB (50 Hz to 20 kHz)
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Tone
Controls
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More
or less 10 dB at 10 kHz, More or less 9 dB at 100 Hz (front-panel)
with center detent
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Audio
Outputs (2)
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-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)
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MOH
Output
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0 dBu
nominal (775 mV), 600 Ohm transformer-isolated, 16 dB headroom
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Power
Amplifier Outputs (2)
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Zone
1 (main): 35 W RMS (25, 70 or 100 V); Zone 2: 4 W (8 Ohms, on
detachable terminal block)
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Indicators
(9)
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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)
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VCA
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Zone
1 (main) master level (with switch-selectable input 1 bypass), 0
to 10 Vdc control, RJ45 (compatible with RDL VCA wall controls)
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Front-panel
controls (7)
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Zone
1 (main) mixer level controls (4, inputs 1 through 4), EQ (2, bass
and treble), Power (momentary pushbutton, toggle on/standby)
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| Rear-panel
controls (22) |
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), VCA paging bypass (includes or excludes
input 1 from master VCA control), Zone 2 mixer level controls (4,
inputs 1 through 4)
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Efficiency
Standard
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Energy
Star Program Requirements for Audio/Video Version 2.0
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| Sleep
Mode Power Consumption |
Less
than 1 W (amplifier and included power supply)
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| Sleep
Mode Delay |
10
minutes to 2 hours (switch-selectable in 10 minute increments)
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Sleep
Mode Disable
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Selectable
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| Active
Mode Delay |
2
seconds (nominal) after input audio detected
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| Audio
Detector Threshold |
-80
dBu mic (at max input gain), -55 dBu balanced line (at max input
gain), -42 dBV unbalanced
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| Power Supply
(included) |
100 to 240 Vac, 50-60 Hz, 50 W; 24 Vdc output to
amplifier chassis
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| Ambient Operating Environment |
0C to 50C Maximum; 20C Recommended
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| Dimensions |
3.50" x
8.50" x 10.00" |
| Shipping Dimensions |
17.75" x 9.13" x 3.94" |
| Weight |
7.30 lbs
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| Shipping Weight |
9.72 lbs |
