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3.5 Watt Decora® Audio Amplifier - SS - Radio Design Labs DS-PA3

SKU: RDLDS-PA3
Manufacturer: RDL
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MSRP: $321.00
Price: $240.75
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3.5 Watt Decora® Audio Amplifier - SS
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The D SERIES-PA3 is a high efficiency 3.5 W power amplifier with two line inputs and an amplified output to drive a 4 or 8 ohm speaker. The -PA3 features a balanced line level input that may be connected unbalanced. The gain range will accommodate standard unbalanced levels as well as professional balanced levels.

The amplifier features a stereo Mini-Jack input on the front panel. The input is designed to receive standard -10 dBV consumer level signals from sources such as a computer or personal media player. The left and right audio signals received on the Mini-Jack are summed to mono and amplified. When a source is connected, the rear-panel input is switched off. The amplified output level is controlled by a front-panel volume control.

A recessed slide switch on the side of the chassis is set during installation. This switch determines the sensitivity of the balanced rear-panel input.

Amplification is provided by a high-efficiency Class D power stage with audio filtering tailored for crisp, pleasant audio clarity. The high-efficiency Class D output stage produces negligible heat for all levels of expected voice or music modulation.

The D SERIES-PA3 is designed to be mounted in a wall box. The front panel does not include any illuminated indicators, making the -PA3 ideally suited to installation in dark rooms or areas. Wiring is connected through a rear-panel detachable terminal block. Module operation is from a 24 Vdc ground-referenced power supply.

Specifications

Inputs (2):
20 kΩ balanced or unbalanced bridging
Input Level:
+4 dBu nominal (Balanced, Low input sensitivity); -15 dBV nominal (Unbalanced, High input sensitivity)
Minimum Input Level:
-18 dBu (Balanced, Max. gain); -19 dBV (Unbalanced Mini-Jack, Max. gain)
Maximum Input Level:
+22 dBu (Low input sensitivity); +4 dBu (High input sensitivity)
Gain Adjustment:
Single-turn audio taper (Front-panel)
Output Power:
3.5 W RMS (Max., into 8 ohms); 6.5 W RMS (Max., into 4 ohms)
Frequency Response:
20 Hz to 20 kHz (± 1 dB)
THD+N:
< 0.1% (@ 1 kHz, 1 W)
Noise:
< -80 dB (below 1 W RMS, balanced input); < -70 dB (below 1 W RMS, Mini-Jack input)
CMRR:
> 50 dB (50 Hz to 120 Hz)
Power Requirement:
24 Vdc @ 30 mA (Idle); 55 mA (1/8 power; normal voice or music); 225 mA (3.5 W into 8 ohms)
Ambient Operating Environment:
0° C to 40° C Maximum; 20° C Recommended
Dimensions:
Height: 4.13 in. 10.49 cm; Width: 1.7 in. 4.32 cm; Depth: 2.05 in. 5.21 cm
Package Type:
Cardboard Box
Package Dimensions:
3.625 x 4.625 x 2.125 in.
Shipping Weight:
.405 lbs.
WEEE weight:
.270 lbs.
Tariff code:
8518.40.2000
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