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Rotel RA-1572 Integrated Amplifier MKII
$2,995.00
SUMMARY
HOME AMPLIFIERS INTEGRATED AMPLIFIERS ROTEL RA-1572 INTEGRATED AMPLIFIER MKII
DESCRIPTION
Rotel RA-1572 Integrated AmplifierÂ
Long recognised as a central component in superb yet cost-effective music systems, the integrated amplifierâs job has evolved substantially as many music-lovers have migrated to digital sources. The RA-1572 is one of the best examples of melding classic analog design with contemporary digital circuits to bring all of your sources to life with surpassing fidelity.
As typical of Rotel amplifiers, the RA-1572âs circuitry draws on a high capacity power supply based on a Rotel custom designed and in-house manufactured oversized toroidal transformer. In addition to providing an abundance of voltage and current for all operating stages, the transformerâs toroidal shape helps prevent stray radiation patterns from corrupting audio signals as they pass through adjacent circuit stages.
Subsequent power supply segments built with tight-tolerance parts including T-Network capacitors provide the exact voltage and current requirements to ensure stress-free signal reproduction.
The RA-1572âs input section is substantially more flexible than that found in most integrated amplifiers. In recognition of the predominance of digital sources available today, the RA-1572 has a built-in state of the art 32-bit/768kHz AKM digital-to-analog converter (DAC) and analog stages of the highest quality. The DAC and surrounding circuitry supports a vast array of source inputs including DSD capable PC-USB (32-bit/384kHz). A front panel USB input is provided for easy connection of a wide variety of music storage devices including Apple iPods, iPhones, and iPads. The Bluetooth input supports aptX for superior performance with compatible devices. In addition, two each coaxial (RCA) and optical (TOSlink) inputs provide easy connections for LPCM music sources including popular streaming devices with up to 24-bit word lengths sampled at 192 kHz. Importantly, it is possible to fix the level and set an auto-on option with digital inputs for use with devices that provide their own volume control for convenient âhands-offâ use. Analog inputs include a pair of balanced XLR connectors in addition to conventional RCA jacks.
The Class AB output stage uses discrete devices to ensure precise reproduction of all signals regardless of origin with virtually any loudspeaker. The power output, conservatively rated at a robust 120 watts per channel into 8 ohms, is substantial as it is a continuous âboth channels driven simultaneouslyâ rating fully in keeping with real-world requirements and Rotelâs tradition of providing extraordinary value. A mono subwoofer output is also provided.
Continuous Power Output (20Hz - 20kHz,
Total Harmonic Distortion (20Hz - 20kHz, 8 ohms):Â
Intermodulation Distortion (60Hz : 7kHz, 4:1):Â
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Frequency Response
Phono Input: 20Hz - 20kHz, ±0.5 dB
Line Level Inputs: 10Hz - 100kHz, ±0.5 dB
Damping Factor (20Hz - 20kHz, 8 ohms): 300
Â
Input Sensitivity / Impedance
Phono Input (MM): 2.1mV / 47k ohms
Line Level Inputs (RCA): 270mV / 100k ohms
Line Level Inputs (XLR): 440mV / 50k ohms
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Input Overload
Phono Input (MM): 32mV
Line level Inputs (RCA): 4V
Line Level Inputs (XLR): 5.5V
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Preamplifier Output / Impedance:Â 1.5V / 470 ohms
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Signal to Noise Ratio (IHF "A" weighted)
Phono Input (MM): 80dB
Line Level Inputs:Â 100dB
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Digital section
Frequency response: 10Hz - 95kHz (±2.0 dB, Max)
Signal to Noise Ratio (IHF "A" weighted): 100dB
Input Sensitivity / Impedance:Â 0 dBFs / 75 ohms
Preamplifier Output Level:Â 1.3V (at -20 dB)
Coaxial / Optical Digital Signals:Â SPDIF LPCM (up to 192kHz 24bit)
PC-USB:Â USB Audio Class 1.0 (up to 96kHz 24bit)
USB Audio Class 2.0 (up to 384kHz 32bit) - Driver installation required