Amplifiers Rolls

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:Recommended Load: 8 OhmsFrequency Response: 5 Hz - 40 kHzEquiv. Input Noise: 100 mV typical, A Weighted, 600 OhmsS/N Ratio: 114 dB @ 35 WattsGain: …

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-protected …

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:Recommended …

An 8-channel mono, or 4-channel stereo distribution amplifier, the RA163 is designed especially for the contractor/install market. The unit's outputs are engineered to drive high-level balanced lines in a sound distribution system. The rear panel features XLR jacks that are used for input and output, and each output may power more than one line.FeaturesMono or stereo operationMono input to 8 outs, or stereo inputs to 4 stereo outsGain switchAll XLR I/O (input/output)Max output level: +24 dBSpecificationsInput Impedance: 100 kΩ, balancedMax Input Level: +24 dBVI/O Connectors: XLROutput Impedance: 50 Ω, balancedMax Output Level: +24 dBMax Gain: 20 dBS/N Ratio: >90 dBFrequency Response: …

The PB223 is for powering phantom powered microphones with either 12VDC or 48VDC. Since it uses a 100kHz swithcing power supply, there is no audio noise generated. It has output pull down resistors so it will work with any mixer, and has 2DC jacks so several units can use one adapter. The PB223 powers two microphones.Features:Power condenser microphones requiring phantom power12 or 48 Volts availableAC adapter includedHigh frequency switching power supply to eliminate noiseSpecifications:Phantom voltage: 48VMale and Female XLRJacks: 2 x 5mm DC input jacksControl: 48 VoltPower Input: 14 - 18 VCD (included)Dimensions: 6" x 2.5" x 1.25"Weight: 1.5 lbs. (0.68 kg) Rolls PB223 2-Channel Phantom Power …

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 OperatedSpecifications: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;

The Rolls DA134 is a four channel RCA distribution amplifier with RCA and 1/8” inputs that can be switched from mono or stereo. The DA134 Distribution Amplifier will distribute a mono signal to eight outputs, or a stereo signal to four stereo outputs. The outputs are designed to drive line level signals. The DA134 is the perfect distribution amp anywhere high quality sound distribution is required.Rolls DA134 Features:Expands the output of a stereo device to multiple outputsCan raise the output level to true line level for any outputStereo 4 channel distribution amplifierFront panel volume controlsMono or Stereo operationDC low end frequency for audiophile frequency responseSmall compact …