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PEX Rolls RA2100b Power Amplifier 2U Rack Mount 2 x 100W at 4 Ohms / 200W at 70V P5477169PEX-245-1132 https://cdnimages.opentip.com/full/PEX/PEX-245-1132.jpg Rolls RA2100b Power Amplifier 2U Rack Mount 2 x 100W at 4 Ohms / 200W at 70V Manufacturer Part Number: RA2100bThe RA2100b by Rolls is a workhorse stereo 100W/channel RMS power amplifier in a standard 2 rack space format, intended for professional audio and distributed musical applications.Key Features: 1/4\" or RCA inputsBinding post speaker outputsFault and thermal protection circuitsMade in the USAOverview: Rolls RA2100b Power Amplifier 2U Rack Mount 2 x 100W at 4 Ohms / 200W at 70VThe RA2100b features 100 watts per channel RMS into four ohms, 85 Watts per channel into eight ohms, and for the contractor - 70V/eight ohms. The unit also features MOSFET drivers in a voltage and current gain circuit and a one-second input turn-on delay. The RA2100b will drive 25V speaker lines directly from each channel, or a 70V line in bridge mode. AC power adapter included. Made in the USA.For more than two decades, those in the know have turned to Rolls for the highest quality, reliability, and value. Rolls is an innovative company specializing in domestically manufactured signal interface accessories, mixers, amplifiers, and processors for the audio professional.Specifications: Frequency response: 70 - 30,000 Hz Output power: 100W RMS x 2 (@ 4 ohms); 85W RMS x 2 (@ 8 ohms); 200W RMS x 1 (bridged @ 8 ohms or 70V) THD: <0.05% (500Hz @ 1W) Signal-to-noise ratio: >95 dBA Dimensions: 19\" x 3.5\" x 7.5\" Weight: 12 lbs.Constant Voltage (70-Volt) Audio SystemsAudio distribution systems, especially those commonly used in department stores, warehouses, restaurants, etc., require that many loudspeakers be driven from a single audio amplifier over long runs of speaker wire. The \"constant voltage\" or \"high impedance distribution\" audio systems can be complex to understand at first, however, provides many advantages. Learn how to design your own 70-volt or 25-volt loudspeaker system.Specification: Product DetailsBrandRollsModelRA2100bPart Number245-1132UPC675889210019Unit of MeasureEachWeight11.65Product SpecificationsPower Output (RMS @ 70V)101W to 200WWeight Range10 to 19 lbs.Manuals & Resources: Rolls RA2100b ManualRolls Manufacturer Warranty 5477169 675889210019 14.8900lbs 0.00 0.00 0.00
Rolls
478.8000 2025-09-26 Only 1 left In Stock

Rolls RA2100b Power Amplifier 2U Rack Mount 2 x 100W at 4 Ohms / 200W at 70V

Brand Rolls
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UPC: 675889210019
SKU: PEX-245-1132
Price:
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Product Description

Manufacturer Part Number: RA2100b

The RA2100b by Rolls is a workhorse stereo 100W/channel RMS power amplifier in a standard 2 rack space format, intended for professional audio and distributed musical applications.

Key Features:
  • 1/4" or RCA inputs
  • Binding post speaker outputs
  • Fault and thermal protection circuits
  • Made in the USA


Overview:
Rolls RA2100b Power Amplifier 2U Rack Mount 2 x 100W at 4 Ohms / 200W at 70V

The RA2100b features 100 watts per channel RMS into four ohms, 85 Watts per channel into eight ohms, and for the contractor - 70V/eight ohms. The unit also features MOSFET drivers in a voltage and current gain circuit and a one-second input turn-on delay. The RA2100b will drive 25V speaker lines directly from each channel, or a 70V line in bridge mode. AC power adapter included. Made in the USA.

For more than two decades, those in the know have turned to Rolls for the highest quality, reliability, and value. Rolls is an innovative company specializing in domestically manufactured signal interface accessories, mixers, amplifiers, and processors for the audio professional.

Specifications: Frequency response: 70 - 30,000 Hz Output power: 100W RMS x 2 (@ 4 ohms); 85W RMS x 2 (@ 8 ohms); 200W RMS x 1 (bridged @ 8 ohms or 70V) THD: <0.05% (500Hz @ 1W) Signal-to-noise ratio: >95 dBA Dimensions: 19" x 3.5" x 7.5" Weight: 12 lbs.

Constant Voltage (70-Volt) Audio Systems



Audio distribution systems, especially those commonly used in department stores, warehouses, restaurants, etc., require that many loudspeakers be driven from a single audio amplifier over long runs of speaker wire. The "constant voltage" or "high impedance distribution" audio systems can be complex to understand at first, however, provides many advantages. Learn how to design your own 70-volt or 25-volt loudspeaker system.

Rolls RA2100b Power Amplifier 2U Rack Mount 2 x 100W at 4 Ohms / 200W at 70V

Specification:




Manuals & Resources:

warning tips WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
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