The RDL HD-PA35UA is a 35W RMS single input power amplifier designed for professional audio applications.
The RDL HD-PA35UA is a 35W RMS single input power amplifier designed for professional audio applications. It features an unbalanced stereo summing input on RCA jacks, with maximum input levels set at +5 dBV (+11 dBV, one input) for 1% THD+N at output. The input level is specified as -15 dBV (180 mV), calibrated to cross the compressor threshold equaling 23 W amplified output when both input jacks are driven. Noise performance is below -75 dB (maximum gain), with THD+N less than 0.5% at 1 kHz at the compressor threshold.
The amplifier includes an automatic compressor that adjusts attack and release times based on a threshold set 2 dB below rated output. Frequency response ranges from 50 Hz to 18 kHz, ±3 dB. Tone controls allow for ±10 dB at 10 kHz and ±9 dB at 100 Hz with a center detent. Output power is 35 W RMS (25, 70, or 100 V) with less than 1% THD+N. Front panel indicators show signal present (green), compressor activity (red), and power status (bright=on, dim=standby, blue).
The VCA output provides 0 to 10 VDC control via RJ45 for compatibility with RDL VCA wall controls.
Rated Power: 35 W RMS
Audio Input: Unbalanced stereo summing input on RCA jacks
Maximum Input Level: +5 dBV (+11 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 (maximum gain)
Specifications
Active Mode Delay
2 sec (nominal) after input audio detected
Ambient Operating Temperature
Maximum: 32 to 122°F (0 to 50°C) Recommended: 68°F (20°C)
Audio Detector Threshold
42 dBV
Audio Input
Unbalanced stereo summing input on RCA jacks
Box Dimensions (LxWxH)
18.9 x 9.6 x 4.3"
Compressor
Threshold 2 dB below rated output, automatically adjusting attack and release times
Dimensions
3.5 x 8.5 x 10.0" (8.9 x 21.6 x 25.4 cm)
Efficiency
Efficiency Standard Used: Energy Star requirements for audio/video version 2.0
Frequency Response
±3 dB (50 Hz to 18 kHz)
Front Panel Controls
Input, EQ (bass and treble), power (momentary push button, toggle on/standby)
Indicators
Front Panel: Signal present (green), compressor activity (red), power (bright=on, dim=standby, blue)
Maximum Input Level
+5 dBV (+11 dBV, one input); (for 1% THD+N at output)
Noise
<-75 dB (maximum gain)
Package Weight
9.34 lb
Power Supply
100 to 240 VAC, 50 to 60 Hz, 50 W; 24 VDC output to amplifier chassis
Rated Power
35 W RMS
Rear Panel Controls
Sleep (standby) mode delay (4 binary switches)
Sleep Mode Delay
10 minutes to 2 hours (switch-selectable in 10 minute increments)
Sleep Mode Disable
Selectable
Sleep Mode Power Consumption
<1 W (amplifier and included power supply)
Weight
7.3 lb (3.3 kg)
Amplifier Power
Output: 35 W RMS (25, 70, or 100 V); <1% THD+N
Input Level
15 dBV (180 mV), (to cross compressor threshold equaling 23 W amplified output, both input jacks driven)
THD+N
< 0.5% (1 kHz at compressor threshold)
Tone Controls
±10 dB @ 10 kHz, ±9 dB @ 100 Hz (front panel) with center detent
VCA
Output level, 0 to 10 VDC control, RJ45 (compatible with RDL VCA wall controls)
