RDL FP-PA20A 20W Mono Audio Amplifier - 70V / 100V

Description
Warranty Information

Overview

The FP-PA20A features a balanced line level input that may be connected unbalanced. A front panel gain control is designed to be adjusted either manually or with a trimming screwdriver. The gain range will accommodate standard unbalanced levels as well as professional balanced levels. Both a 70 V and 100 V amplified output are provided to drive corresponding speakers in a distributed sound system. Audio levels that could cause the amplified output to clip are compressed using two dynamic time constants designed to preserve aural transparency. Normal audio level signals remain unaffected by the compressor thereby preserving audio dynamics and preventing the compressor from increasing feedback potential when the amplifier is used for paging. The FP-PA20A produces average audio levels and audio clarity normally expected of amplifiers delivering much higher output power.

Features:

20 Watts RMS Constant Voltage Amplifier
70 V and 100 V Outputs
Integral Audio Compressor to Control Clipping
High Overall Operating Audio Level
Maximized Audio Level for Output Power
Audio Quality Superior to Standard Amplifiers
Plenum Rated per UL 2043 Standard

Specifications

Input / Output Connector:

Detachable terminal block

Input:

Line level (+4 dBu bal; -10 dBV unbal)

Input Impedance:

20 kΩ balanced bridging; 10 kΩ unbalanced

Gain Adjustment:

Single turn audio taper

Minimum Input Levels:

Balanced: -26 dBu (to cross compressor threshold)
Unbalanced: -28 dBV (to cross compressor threshold)

Maximum Input Levels:

Balanced: +23 dBu
Unbalanced: +15 dBV

Frequency Response:

50 Hz to 20 kHz (± 3 dB)*

THD+N:

< 0.1% (@ 1 kHz)*
< 0.5% (50 Hz to 20 kHz)*
*measured at compressor threshold level equaling 4 W RMS output power

Plenum Rating Standard:

UL 2043

Overall Dimensions:

Height: 2.3 in. (5.85 cm); Width: 3.25 in. (8.26 cm); Length: 6 in. (15.3 cm)

Noise:

< -80 dB (below 20 W RMS)

Compressor:

Threshold 6 dB below rated output, automatic adjusting attack and release

CMRR:

> 55 dB (50 Hz to 120 Hz)

Output Power:

20 W RMS @ 70 V or 100 V

Ambient Operating Environment:

0° C to 30° C Max; 20° C Recommended

Indicators (2):

Red LED: PEAK LED indicates compressor activity
Green LED: Power ON

Power Requirement:

24 Vdc @ 1650 mA, Ground referenced (for continuous RMS power output) 24 Vdc @ 1000 mA, Ground referenced (for normal uncompressed audio)

Package Type:

Cardboard Box

WEEE weight:

2.18 lbs.

Shipping Weight:

2.395 lbs.

Tariff code:

8543.70.9910

Package Dimensions:

4.375 x 7 x 2.25 in.

RDL Three-Year Limited Warranty Installation of these products by the Purchaser shall constitute Purchaser’s acknowledgement and acceptance of the terms and conditions for sale and of this warranty, and shall constitute the Purchaser’s determination of the suitability of this product for the Purchaser’s intended application. Radio Design Labs, Inc., also referred to as RDL®, warrants to the Purchaser that products manufactured by RDL are free from defects in material and workmanship. This warranty applies to the period of three years from the date of shipment, except for component parts or products purchased from other sources and supplied by RDL. Such component parts or products bear only the warranty of the manufacturer thereof in effect at the time of shipment to the Purchaser. RDL will, without charge, and after written notice has been received and acknowledged by RDL, repair an RDL product if proved to be defective according to the usage of the trade, when such equipment is received by RDL at the location it designates with shipment costs prepaid by the Purchaser. RDL shall not be liable for any expense whether for repairs, replacements, material, service, or otherwise, incurred by the Purchaser or modifications made by the Purchaser to the product. No equipment shall be deemed defective if it shall fail to operate in a normal or proper manner due to exposure to excessive moisture in the atmosphere, excessive temperature extremes, improper environmental cleanliness, or any other environment not consistent with the principles of good engineering practice. In no event shall RDL have any liability for consequential damage or expense directly or indirectly arising from the use of the products, or any inability to use it either separately or in combination with other equipment or materials, or from any other cause, whether used in accordance with instructions or not. This warranty is void if equipment is altered in any way by other than RDL. RDL products are NOT intended for use in life support appliances, devices, or systems. Use of RDL products in such applications is done solely at the liability of the reseller/installer and/or end user. RDL reserves the right to change design parameters and specifications at any time without notice. The performance measurements reflect the products at the time of printing. This warranty is in lieu of all others, either expressed or implied. No representative is authorized to assume for RDL any other liability in connection with RDL products.