RDL HD-PA35 – 35 W Amplifier, 4/8 Ohm, Supply Included
RDL HD-PA35 – 35 W Amplifier, 4/8 Ohm, Supply Included is backordered and will ship as soon as it is back in stock.
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RDL HD-PA35 – 35 W Amplifier, 4/8 Ohm, Supply Included
What is the RDL HD-PA35?
The RDL HD-PA35 is a 35 W RMS single-input amplifier with a 4 or 8 ohm speaker output, designed as a single-zone amplifier for energy-efficient commercial systems. It includes bass and treble controls, a VCA-controlled master volume with remote adjustment, and an analog compressor/limiter that keeps peaks clean. The high-efficiency Class D design runs cool, and the power supply is included.
How does it work?
The HD-PA35 can be fed from a variety of RDL or OEM mixers, or add zones to a mix from another RDL HD series mixer amplifier. Unbalanced stereo sources connect on RCA jacks and are summed to the single amplifier channel. The output delivers 35 W RMS into 4 ohms or 32 W into 8 ohms on a detachable terminal block, with impedance set by a rear-panel switch. A front-panel control sets input gain, and bass and treble controls adjust equalization at the output. Output level can be VCA controlled from optional RDL remote controls or industry-standard 0 to 10 Vdc or 0 to 10 kΩ controls through a rear-panel detachable terminal block. The analog compressor/limiter keeps audio unclipped for input overloads of up to 20 dB, and a red LED flashes when it is preventing clipping. Raising the input gain lets the compressor substantially increase average output beyond a standard 35 W amplifier. A blue POWER LED is dim in standby and bright when active, and a front-panel pushbutton switches between standby and active modes. The amplifier is engineered and manufactured in the U.S.A., and mounts with RDL HD series accessories such as the RDL HD-RA2 rack adapter or RDL HD-WM2 wall mount.
What are the key features?
- 35 W Class D output — 35 W RMS into 4 ohms or 32 W into 8 ohms, switch-selectable.
- Compressor/limiter — Analog processing prevents clipping for input overloads up to 20 dB.
- Remote volume control — VCA master volume accepts RDL remotes or 0 to 10 Vdc control.
- Tone controls — Front-panel bass and treble with center detent.
- Summing RCA inputs — Unbalanced stereo sources sum into the single zone.
- Power supply included — 100 to 240 Vac supply with 24 Vdc output.
Where is it typically used?
- Conference room
- Huddle room
- Training room
- Commercial meeting space
- Multi-purpose room
Technical Specifications
| Model | HD-PA35 |
| Rated Power | 35 W RMS |
| Audio Input | Unbalanced stereo summing input on RCA jacks |
| Maximum Input Level | + 9 dBV (+15.5 dBV, one input); (for 1% THD+N at output) |
| Input level | -15 dBV (180 mV, to cross compressor threshold 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 | Constant voltage: ± 1 dB (50 Hz to 20 kHz) |
| Tone Controls | ±10 dB @ 10 kHz, ±9 dB @ 100 Hz (front-panel) with center detent |
| Power Amplifier Output | 35 W RMS (4 Ohms), 32 W (8 Ohms) on detachable terminal block (switch-selectable 4 or 8 Ohm impedance); <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, detachable terminal block (compatible with RDL VCA wall controls) |
| Front-panel controls (4) | Input, EQ (2, bass and treble), Power (latching pushbutton, on/standby) |
| Ambient Operating Environment | 32° F to 122° F (0° C to 50° C) Maximum; 68° F (20° C) recommended |
| Power Supply (included) | 100 to 240 Vac, 50-60 Hz, 50 W; 24 Vdc output to amplifier chassis |
| Dimensions and Weight | Height: 3.5 in.(8.89 cm); Width: 8.5 in.(21.6 cm); Depth: 6.75 in.(17.1 cm); Weight: 4.5 lb.(2 kg) |
Frequently Asked Questions
What speakers can it drive?
4 ohm or 8 ohm loads, selected with a rear-panel switch: 35 W RMS into 4 ohms or 32 W into 8 ohms.
Can volume be controlled remotely?
Yes. The VCA accepts RDL remote controls or 0 to 10 Vdc control on a detachable terminal block.
Is the power supply included?
Yes. The included supply accepts 100 to 240 Vac, 50-60 Hz and provides 24 Vdc to the amplifier.
What inputs does it have?
An unbalanced stereo summing input on RCA jacks.
Is there a version with automatic sleep?
Yes. RDL offers the HD-PA35U and HD-PA35UA with automatic sleep mode for stricter energy standards.
What warranty does it carry?
This product is covered by a 7-year RDL warranty. For warranty claims, RMAs or support, contact Creation Networks at (888) 230-3661 or sales@creationnetworks.net.
Can Creation Networks help design the system?
Yes. Our team specifies, programs and installs zoned commercial audio systems for commercial projects nationwide. Call (888) 230-3661 for a quote or design review.
At Creation Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
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