(0)

Questions? Call Us:
800-356-5844

Radio Design Labs HD-PA35UA
35 Watt Power Amplifier - 25, 70, 100V, with Power Supply

OUR PART #:  HD-PA35UA

Radio Design Labs' HD-PA35UA is a single input audio amplifier for systems demanding the highest energy efficiency.
Learn More
Our Price: $243.99
List Price: $326.38
You save 25%!
Write the first review.

Full Compass offers free ground shipping on thousands of stock and non-stock (special order) items for orders placed on this web site and shipping in the continental US (48 states).

Learn More

Free Shipping

Available

We guarantee to match pricing on the products we sell for new, identical and immediately available products if you see them offered at a lower price. Please contact us if you find a lower price before purchasing.

Learn More

Low Price

Guaranteed

Radio Design Labs HD-PA35UA
Qty:
Usually ships in 7-14 business days.
Need it sooner? Call us!

Similar Products

Radio Design Labs' HD-PA35UA is a single input audio amplifier for systems demanding the highest energy efficiency.  It may be used as a single zone amplifier fed from a variety of RDL or OEM mixers.  It is ideal for providing one or more additional zones to a mix originating from another RDL HD series mixer amplifier.  The 35 watt power amplifier output is driven from a high-efficiency Class D amplifier stage. The amplifier normally shuts down (standby "sleep" mode) when audio is absent and automatically turns on when needed.  The 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.  The amplifier provides a constant voltage output (25 V, 70 V or 100 V).

The HD-PA35UA 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 an analog-filtered Class-D digital output stage.

The HD-PA35UA provides a front-panel control to set the input gain.  An optional remote control connected to the rear-panel RJ45 jack provides for remote adjustment of the output level.  The tone controls adjust the equalization at the amplifier output.

The presence of a signal at the input causes the HD-PA35UA to fully turn on, activating the power amplifier and all associated equalization and compressor circuitry.  When an input signal is absent, a delay timer is initiated.  Rear-panel DIP switches are provided to set the power-down delay timer to a value between 10 minutes and 2 hours in 10 minute increments.  After the time-out period, the HD-PA35UA enters the sleep mode until an input signal is received.  The switches may be set to disable the sleep mode for systems specifying continuous amplifier operation.

The amplifier includes an analog compressor/limiter for audio fidelity noticeably superior to conventional class D amplifiers with digital limiting.  Increasing the input gain can substantially increase the average output power beyond that of a standard 35 watt amplifier.  A red front-panel LED flashes when the compressor is preventing output clipping.  Normal audio level signals remain unaffected by the compressor thereby preserving audio dynamics.  The audio is compressed according to three dynamic time constants providing aural transparency while maintaining clean, unclipped amplified audio for input overloads of up to 20 dB.  The HD-PA35UA, with compression, is capable of producing average audio output levels and clarity normally expected from amplifiers with a much higher output power rating.

During power-up and power-down, the amplifier output is protected against clicks, pops and thumping by internal soft-start solid-state switches.

A blue POWER LED illuminates when the HD-PA35UA is powered from its external 24 Vdc power supply (included).  The power LED is dim when the amplifier is in the standby mode, and is bright when the amplifier is fully active.  A front-panel pushbutton is provided to manually cycle between standby and active modes.  The power amplifier is equipped with both thermal and output short-circuit protection.  The high-efficiency Class D output stage produces minimal heat for all levels of expected voice or music modulation.

Radio Design Labs HD-PA35UA Features:

  • One input with front-panel volume control
  • Bass and Treble tone controls
  • Designed as a single zone amplifier
  • Master volume VCA controlled with remote adjustmentcapability
  • Amplifier output on detachable terminal block
  • Unbalanced summing inputs on RCA jacks
  • Includes power supply
  • Automatic sleep mode meets strictest energy saving standards

Radio Design Labs HD-PA35UA Specifications:

  • Rated Power: 35 W RMS
  • Audio Input: Unbalanced stereo summing input on RCAjacks
  • Maximum Input Level: + 5 dBV (+11 dBV, one input);(for 1% THD+N at output)
  • Input level: -15 dBV (180 mV), (to cross compressorthreshold equaling 23 W amplified output, both input jacks driven)
  • Noise: <-75 dB (max gain)
  • THD+N: < 0.5% (1 kHz at compressor threshold)
  • Compressor: Threshold 2 dB below rated output,automatically adjusting attack and release times
  • Frequency Response: ± 3 dB (50 Hz to 18 kHz)
  • Tone Controls: ±10 dB @ 10 kHz, ±9 dB @ 100 Hz(front-panel) with center detent
  • Power Amplifier Output: 35 W RMS (25, 70 or 100 V);<1% THD+N
  • Indicators (3): Front-panel: Signal present (green),Compressor activity (red), Power (bright=on, dim=standby, blue)
  • VCA: Output level, 0 to 10 Vdc control, RJ45(compatible with RDL VCA wall controls)
  • Front-panel controls (4): Input, EQ (2, bass andtreble), Power (momentary pushbutton, toggle on/standby)
  • Rear-panel controls (4): Sleep (standby) mode delay (4binary switches)
  • Efficiency Standard Used: "Energy Star® ProgramRequirements for Audio/Video" Version 2.0
  • Sleep Mode Power Consumption: < 1 W (amplifier andincluded power supply)
  • Sleep Mode Delay: 10 minutes to 2 hours(switch-selectable in 10 minute increments)
  • Sleep Mode Disable: Selectable
  • Active Mode Delay: 2 seconds (nominal) after inputaudio detected
  • Audio Detector Threshold: -42 dBV
  • Ambient Operating Environment: 0° C to 50° C Maximum;20° C Recommended
  • Power Supply (included): 100 to 240 Vac, 50-60 Hz, 50W; 24 Vdc output to amplifier chassis
  • Dimensions (HxWxD): 3.5" x 8.5" x 10" (8.89 x 21.6 x25.4 cm)
  • Weight: 7.3 lbs (3.3 kg)
24VDC, 2A Universal Power Supply with North American Plug-End Cord
Radio Design Labs PS24V2A 24VDC, 2A Universal Power Supply with North American Plug-End Cord
Radio Design Labs' PS24V2A is a 24 volt DC Switching Power Supply, with North American cord, 2 Amp output and DC Plug.Radio Design Labs PS24V2A Specifications: Input: 100 to 240 VACOutput: 24 Vdc, 2 A (UL, ...
72.22 96.60 25

In Stock
Free Shipping Available
HD Series Wall Bracket for "U" models
Radio Design Labs HD-WM1 HD Series Wall Bracket for "U" models
Radio Design Labs' HD-WM1 mounts a compatible HD series product and its power supply to a wall or other flat surface.  The interior of the bracket holds the power supply with space to conceal excess wire length for a professional ...
60.16 80.48 25

Usually ships in 7-14 business days.
Need it sooner? Call us!
Rack Adapter for 2x HD Series Products
Radio Design Labs HD-RA2 Rack Adapter for 2x HD Series Products
Radio Design Labs' HD-RA2 allows you to rack mount 2 HD series products.  Mixer amplifiers may be mounted forward for use control, or may be recessed securely behind a filler panel.Shipping Weight: 4.4 lbsPackage Dimensions: 20" x ...
56.99 76.21 25

Usually ships in 7-14 business days.
Need it sooner? Call us!
10.4" Rack Mount for HD Series Products
Radio Design Labs HD-HRA1 10.4" Rack Mount for HD Series Products
RDL's HD-HRA1 mounts one RDL HD series product. Mixer amplifiers may be mounted forward for user control, or may be recessed securely behind a filler panel (sold separately). This adapter fits 10.4" racks.
53.09 71.02 25

Usually ships in 7-14 business days.
Need it sooner? Call us!
HD Series Filler Panel with Lens
Radio Design Labs HD-FP2L HD Series Filler Panel with Lens
RDL's HD-FP2L mounts in front of an HD series product to allow viewing while preventing user adjustment or tampering. Lens is removable during setup.
48.43 64.77 25

Usually ships in 7-14 business days.
Need it sooner? Call us!
HD Series Amplifier Rear Cover
Radio Design Labs HD-BP1 Back-Pack HD Series Amplifier Rear Cover
RDL's HD-BP1 back-pack mounts to an RDL HD series mixer/amplifier to prevent user access to the rear panel. The back-pack holds the power supply and provides a completely closed back for the installed amplifier.
45.64 61.06 25

Usually ships in 7-14 business days.
Need it sooner? Call us!
HD Series Filler Panel
Radio Design Labs HD-FP1 HD Series Filler Panel
RDL's HD-FP1 fills an unused half of a rack adapter or mounts in front of an RDL HD series product to prevent user adjustment or tampering.
28.87 38.62 25

Usually ships in 7-14 business days.
Need it sooner? Call us!
HD Series Amplifier Security Cover
Radio Design Labs HD-ASC1 HD Series Amplifier Security Cover
RDL's HD-ASC1 mounts to an RDL HD series mixer/amplifier to prevent user adjustment or tampering. The power button and associated indicators remain accessible with the HD-ASC1 installed.
25.65 34.29 25

Usually ships in 7-14 business days.
Need it sooner? Call us!

To be the first to review this item, click here.

Add to Cart

We're sorry, only of this item available



Call a Sales Pro at 800-356-5844 for more information

© 2017 Full Compass Systems, LTD  9770 Silicon Prairie Parkway, Madison, WI 53593  All rights reserved.

We are not responsible for typographical errors in pricing or product specification
inaccuracies in our catalog or web site. Prices are subject to change without notice.