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35watt Mixer Amplifier with Power Supply, Constant Voltage Output 25 V, 70 V or 100 V
Series:
Model: HD-MA35A
- 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
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The HD-MA35A is a three input audio mixer amplifier for systems demanding a broad range of features and high energy efficiency. Two output power amplifier zones are provided, 35 W (Zone 1) and 2 W (Zone 2). The Zone 1 output is driven from a high-efficiency Class D amplifier stage. 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 10 kOhm controls. This output provides a constant voltage (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-MA35A is engineered and manufactured in the U.S.A.
The HD-MA35A features two mixers. The Zone 1 mixer is located on the front-panel providing user level and tone controls for the 35 W amplifier output. The tone controls adjust the equalization at the Zone 1 amplifier 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 2 W amplifier and a 600 Ohm transformer-balanced MOH output.
The HD-MA35A has three inputs that are common to both mixers. Input 1 accepts a balanced mic or line level source. Inputs 2 and 3 accept unbalanced mono or stereo line-level sources.
- 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
- Amplifier Signal Type - Audio
- Amplifier Type - Power Amplifier
- Spec Sheet available - Yes
- Amplifier Zones (2):: Zone 1 (Main): 35 W RMS, front-panel mixer (user controls); Zone 2: 2 W RMS (8 Ohms), rear-panel mixer (trimmers)
- Audio Inputs (3):: 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 Voltage:: 24 Vdc (IEC 1938: 1996-12), switch-selectable for the mic input
- 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
- External RDL Module Power Output:: 24 Vdc, 100 mA maximum, ground-referenced
- Input Level:: (to cross compressor threshold equaling 23 W amplified output) Mic Input: -50 dBu (2.5 mV), (front panel gain at Balanced line input: -21 dBu (70 mV), (front panel gain at max.)
- 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+N:: < 0.5% (1 kHz at compressor threshold, main amp output); < 0.25% (line output, main)
- CMRR: Mic input:: > 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 (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
- Frequency Response (Zone 1 amplifier):: Constant voltage: ±3 dB (50 Hz to 18 kHz); 4/8 Ohm: ±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 (2):: +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
- Power Amplifier Outputs (2):: Zone 1 (main): 35 W RMS (25, 70 or 100 V); Zone 2: 2 W (8 Ohms, on detachable terminal block)
- Indicators (6):: Front-panel: Signal present (3; 1 per input, green), Compressor activity (red), Power (bright=on, dim=standby, blue); Rear-panel: Ducking/muting threshold (yellow)
- VCA:: Zone 1 (main) master level, 0 to 10 Vdc control, detachable terminal block (compatible with RDL VCA wall 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
- Power Supply (included):: 100 to 240 Vac, 50-60 Hz, 50 W; 24 Vdc output to amplifier chassis
- Depth: 6.75 in
- Height: 3.50 in
- Width: 8.50 in
- Product Weight: 6 lbs
- Operating Temperature (Maximum): 122 F
- Operating Temperature (Minimum): 32 F
- Shipping Weight: 6 lbs
FP-NML2
- Network to Mic/Line Interface
FP-NML2P
- Network to Mic/Line Interface with PoE
FP-NML2V
- Network to Mic/Line Interface with VCA
FP-NML2VP
- Network to Mic/Line Interface with VCA, PoE
HD-MA35
- 35watt Mixer Amplifier with Power Supply - Low Impedance Output 4 Ohm or 8 Ohm
HD-MA35U
- 35watt Mixer Amplifier, 4 Ohm / 8 Ohm, with Power Supply
HD-MA35UA
- 35watt Mixer Amplifier, 25, 70, 100 V, with Power Supply
HD-PA35
- 35watt Power Amplifier with Power Supply, Low Impedance Output 4 Ohm or 8 Ohm
HD-PA35A
- HD-PA35A 35 Watt Power Amplifier with Power Supply - Constant Voltage Output 25 V, 70 V or 100 V
HD-PA35AX
- 35W Power Amplifier, 25V or 70V or 100 V Output, 9dBV Maximum Input Level
HD-PA35U
- 35 Watt Power Amplifier, 4 Ohm / 8 Ohm, with Power Supply
HD-PA35UA
- 35watt Power Amplifier; 25, 70, 100 V, with Power Supply
HD-PA35X
- 35W Power Amplifier, 4ohms or 8ohms Output, 9dBV Maximum Input Level
HD-RA35U
- 35watt Remote Mixer Amplifier, 4 Ohm / 8 Ohm, with Power Supply
HD-RA35UA
- 35watt Remote Mixer Amplifier; 25, 70, 100 V, with Power Supply
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WEBB Integration
1420 S 4800 W
Suite D2
Salt Lake City, UT 84104
USA
(801) 484-8567
www.webbintegration.com
Contact in regards to this product:
Radio Design Labs
Model: HD-MA35A
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