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Amplifiers
Amplifiers Rolls
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Capacitor capacitance (mF)
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Power per channel (8Ω) (W)
Power per channel (6Ω) (W)
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Power per channel (2Ω) (W)
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Signal to noise ratio (dB)
Signal-to-noise ratio (Main) (dB)
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Input sensitivity (XLR) (mV)
Input impedance (XLR) (kOhm)
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Input sensitivity (Main) (V)
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Output level (REC) (mV)
Output impedance (REC) (kOhm)
Preamp channel output level (mV)
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REC (to recorder) (pairs)
XLR (balanced) (шт)
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Rolls RA235 2-Channel Stereo , 35W per Channel, 1 Rack Unit
The Rolls RA235 Stereo 35 Watt Power Amplifer is a virtually indestructable single rack space amplifier intended for musicians and studio owners alike. The unit is ideal for home studio applications or wherever a clean, efficient medium wattage amp is required. The front panel acts as heat distribution, there is no fan to induce noise.Rolls RA235 Features:35 Watts per channel of clean amplification1/4" and RCA inputsConvenient spring-loaded output terminalsFront panel heat sinking for proper ventingProtected output stageRolls RA235 Specifications:Recom
mended Load: 8 OhmsFrequency Response: 5 Hz - 40 kHzEquiv. Input Noise: 100 mV typical, A Weighted, 600 OhmsS/N Ratio: 114 dB @ 35 WattsGain: …
Price from
$279.00
Compare prices and buy Rolls RA235 2-Channel Stereo , 35W per Channel, 1 Rack Unit
Parts-express.com
(USA)
→
$279.00
Fullcompass.com
(USA)
→
$279.00
Adorama.com
(USA)
→
$279.00
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3
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Rolls RA2100b 2-Channel Stereo , 100W per Channel, 2 Rack Units
The Rolls RA2100b is an ideal installation amplifier for small to medium sized applications. The unit is built solid and housed in a painted steel chassis. It also includes special high performance transformers and a fused power line. The MOSFET output stage is fault protected which allows the R2100b to forgive momentary output shorts. It is designed to drive 4 or 8 Ohm speakers, 25V speakers (individual channels) or 70V speakers (in bridged mode). CAUTION: The 2100b is convection cooled. Adequate ventilation room for the heat sink fins on the rear panel must be provided for.Features100W RMS per output (4 ohm)85W RMS per output (8 ohm)200W RMS into 70V (8 ohm)1/4" and RCA inputsFault-protecte
d …
Price from
$399.00
Compare prices and buy Rolls RA2100b 2-Channel Stereo , 100W per Channel, 2 Rack Units
Fullcompass.com
(USA)
→
$399.00
Parts-express.com
(USA)
→
$399.00
Adorama.com
(USA)
→
$399.00
Compare prices
3
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Rolls RA170 Power , 70W, 70A, 1 Rack Unit
The Rolls RA170 Power Amplifier was designed especially for the installation contractor. The RA170 is a single rack-space, mono unit with a choice of an RCA or 1/4" unbalanced input. The 70 volt speaker outputs are provided via spring-loaded terminals - no transformer is required for speaker connection. The front panel includes a Power indicator LED, a Volume control, and two Clip LEDs which indicate circuitry overload. The output circuitry is protected from momentary shorting and excessive load by a specially designed protective circuit.Rolls RA170 Features:Balanced 70V line outputDrives 70V speakers directlyRCA or 1/4" inputsSpring-loaded outputClip indicatorRolls RA170 Specifications:Recom
mended …
Price from
$274.00
up to
$279.00
Compare prices and buy Rolls RA170 Power , 70W, 70A, 1 Rack Unit
Fullcompass.com
(USA)
→
$279.00
Parts-express.com
(USA)
→
$279.00
Adorama.com
(USA)
→
$274.00
Compare prices
3
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Rolls HA204P 4-Channel Portable
The HA204p is a full frequency response, four channel headphone monitoring device designed for the recording studio or other professional applications. Each output boasts a whopping 20 dB of clean channel gain.Features:Stereo 1/8" and Dual RCA InputsRotary Volume controlsAC adapter included15-35k Hz frequency responseLots of output level.... it’s loud!9V battery OperatedSpecificatio
ns:Input Impedance: 47k OhmsMax Input Level: +13 dBV adapter, +8 dBV BatteryInput Connectors: TRS Stereo 1/8", Dual RCAOutputs: 4 - TRS Stereo 1/8" (3.5mm)Output Impedance: 10 Ohms each outputMax Gain: 20 dB/ChannelS/N Ratio: >90 dBTHD:< .008%IMD (SMPTE):< .008%Nominal Current Draw: 30 Mills Min./ 400 Mills Max.Expected Battery Life: 8 Hours Continuos useFrequency Response: 15-35K Hz.Recommended Headphone Impedance: 16 to 500 Ohms.Power: 15 VDC (Rolls Model PS27s)Weight: .85 lbSize: 4.5" x 1.125" x 4.5" Rolls HA204P 4-Channel Portable Headphone Amplifier.>&hellip
;
Price from
$129.00
Compare prices and buy Rolls HA204P 4-Channel Portable
Amazon.com
(USA)
→
$129.00
Fullcompass.com
(USA)
→
$129.00
Newegg.com
(USA)
→
$129.00
Adorama.com
(USA)
→
$129.00
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4
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Rolls PA202 40 Watt Stereo Class D Mini Amplifier with Screw Terminals
The PA202 from Rolls is a very small general purpose audio amplifier designed for projector, ceiling mount, or rack monitoring. It is perfect for many boardroom and classroom applications, also ideal for small space installations where a larger amplifier won't fit, or quick installs.
$
179.00
Parts-express.com
Delivery: in USA
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Rolls RA235 Stereo 35W Power Amplifier
How can you elevate your audio experience? With the Rolls RA235 Stereo 35W Power Amplifier, a robust and powerful piece of audio equipment designed for both musicians and studio owners. This high-quality amplifier is not just a device; it's a game-changer in the realm of sound amplification. Engineered to perfection, this advanced power amplifier boasts an impressive power output of up to 99 watts per channel. This makes it an ideal choice for those high-end speakers that demand more power to deliver crystal-clear, high-quality sound. The RA235 is not just about power; it's also about reliability and durability. Crafted by Rolls, a brand synonymous with excellence in the audio industry, this
$
279.00
Adorama.com
Delivery: in USA
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Rolls RA2100B 100W Stereo Professional Power Amplifier
The Rolls RA2100B is a stereo 100W/channel RMS power amplifier in a standard 2 rack space format. It is intended for professional audio and distributed musical applications. The unit features 100 Watts per channel RMS into four ohms, 85 Watts per channel into eight ohms and for the contractor - 70 Volts / eight ohms. The unit also features Moseft drivers in a voltage and current gain circuit and a one-second input turn-on delay. The RA2100b will drive 25 Volt speaker lines directly from each channel, or 70 Volt lines bridged.
$
399.00
Adorama.com
Delivery: in USA
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Rolls RA170 70V/70W Mono Power Amplifier
The RA170 Power Amplifier was designed especially for the installation contractor. The RA170 is a single rack-space, mono unit with a choice of an RCA or 1/4" unbalanced input. The 70 volt speaker outputs are provided via spring-loaded terminals - no transformer is required for speaker connection. The front panel includes a Power indicator LED, a Volume control and two Clip LEDs which indicate circuitry overload. The output circuitry is protected from momentary shorting and excessive load by a specially designed protective circuit.
$
274.00
Adorama.com
Delivery: in USA
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Rolls PA202 20W Class-D Mini Stereo Amplifier
The Rolls PA202 is a compact class D amplifier. It has 20 watts per channel stereo @ 4 Ohms and 40 watts when in bridge/mono mode @ 8 Ohms. The class D low heat design gives the PA202 the ability to be mounted in very tight applications.It will work great in ceilings by projectors, or anywhere small and heat free amplification is required. The PA202 is in an all metal chassis. Bottom mounts are provided for permanent installations. The PA202 has an included 24 VDC IEC laptop type external power supply.
$
179.00
Adorama.com
Delivery: in USA
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Rolls HR251 50+50W XLR Power Amplifier
Are you in search of a robust and reliable power amplifier for your professional audio and visual applications? Look no further than the HR251 50+50W XLR Power Amplifier. This advanced, dual-channel power amplifier delivers a potent 50 watts per channel, making it an ideal choice for powering high-performance speakers or large sound systems. Engineered by Rolls, a brand synonymous with superior audio equipment, the HR251 is built to last. It features an FR4(V94-0) rated glass epoxy circuit board and a durable, powder-coated steel chassis, ensuring longevity and reliable performance. The HR251 50+50W XLR Power Amplifier is equipped with both stereo RCA and XLR line-level inputs, offering
$
269.00
Adorama.com
Delivery: in USA
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Rolls Bellari PA253 42W Stereo Power Amplifier
The PA253. At every design stage we focused on one thing, sound quality. The chassis is made in Salt Lake City, UT. The steel sheets are cut, bent, formed and finished all by US labor. After that process the steel is powder coated to a high gloss red done by US labor. We silk-screen the chassis and assemble the PCB's at our Salt Lake City factory.We flow solder the PCB's, send them to post flow assembly where we add the fragile components soldering them in by hand. We test the PCB's and send them to mechanical assembly were the PA253 is completed then tested again. The boxes that we use are made in a facility just a few miles from us. Even the out bound shipping boxes, biodegradable peanuts
$
299.00
Adorama.com
Delivery: in USA
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Element base
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Number of channels
1
2
3
4
5
7
≥ 8
Power per channel (4 Ω)
≤ 100 W
101 – 200 W
201 – 300 W
≥ 301 W
Power per channel (8 Ω)
≤ 50 W
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