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Opitical Digital Reference Integrated Amplifier


Pure digital.

Used by Team PioneerWith its powerful 32-bit floating-point SHARC Digital Signal Processors equaliser and network control functions, our RS-A9 ODR amplifier features high-performance functions that put you in total control of your sound stage.

An optical digital input allows the amp to connect digitally to the RS-D7R11, preserving the highest quality of the audio signal and forming a pure digital system.

The unit also includes 3 digital outputs so that you can easily combine it with one or more RS-A7 amplifiers to drive your speakers with the utmost sonic purity.

It is suited especially for tweeters and midrange speakers, bringing out the clear and smooth tone of delicate strings.

This amplifier’s design and specialised parts further ensure high-quality sound and a true digital signal.


Main FeaturesRS-A9
Maximum Output Power 4 x 100W, 2 x 300W
Continuous power output (RMS)• 50W x 4 / 150W x 2 (20 - 20kHz, 0.02/0.02%, 4Ω)
• 75W x 4 (20 - 20kHz, 0.02%, 2Ω)
Load impedance capability2 - 8Ω
Frequency response10 - 100,000 Hz
Distortion< 0,002 %
S/N ratio105 dB
LPFIntegrated DSP
Max. current consumption (A/4Ω)• 31A (Rated power)
• 5A (No signal)
Chassis size (W x H x D)330 x 71 x 585 mm
Unit weight13 kg
ODR FeaturesRS-A9
Optical Digital input/output1/3
IP Bus input/output1/1
32-Bit Floating SHARC DSPs3
FIR FilterYes
Digital Crossover Network4-way, L/R independent
Graphic Equalisers• 31-band
• 3-band for L/R segmentation
Time AlignmentYes
Listening Position SelectorYes
DA ConvertersBurr-Brown 24-bit Advanced Segment
Additional ODR Features• L/R independent power supply
• High performance 8 x oversampling digital filter
• Ultra precise sound master clock circuit
• Upsampling (44.1kHz - 192 kHz) by Sampling Rate Converter)
• Parametric bass / treble
• Electronic DAC volume in 60 steps
• Non-magnetic power terminal
• Copper-plated chassis