Enjoy high-resolution stereo sound with the Onkyo A-9150 2-Channel 120W
Home Theater Power Amplifier. It delivers up to 60W per channel at 4 Ohms and
has two optical inputs, two digital coaxial inputs, a dedicated phono input, and
five stereo RCA inputs. The A-9150 features an integrated DAC and a front-panel
1/4" headphone jack.
Designed for Enhanced Power Amplification
In order to deliver a clear and comfortable audio image, sounds of
different frequencies should arrive at the listening position simultaneously.
The power amplification circuits in the A-9150 feature topology that's designed
for phase accuracy, wide-spectrum signal reproduction, and natural transient
response.
Enhanced Musicality with Discrete SpectraModule
The discrete SpectraModule features a slew rate of over 500 V/μs to help
produce accurate definition of instruments ranged around a larger and more
realistic soundstage.
Dedicated MM/MC Phono Circuit Board
The A-9150 features a gold-plated phono input that supports signals from
either MM or MC cartridges fitted to your choice of turntable. Its separate
phono circuit board has dedicated equalizers served by a customized head amp,
which operates in discrete configuration for MC signals. Together with analog
power amplification, this phono input design helps express the depth and
vitality of music on vinyl.
High-Current Transformer and Capacitors
Current influences sound quality; high current is required for a better
grip on the speaker transducers, improving control and accuracy. A high-output
transformer and two capacitors inside the A-9150 deliver current through
discrete output-stage transistors that are kept cool by an aluminum heat sink.
This allows the speakers to react nearly instantly, with throw-range controlled
for accurate articulation, even through dynamic and complex musical
passages.
DIDRC Filter and 768 kHz / 32-Bit DAC for Natural Sound
Distortion in the ultra-high-frequency spectrum can have a noticeable
impact on the character of audible sound. The DIDRC Filter is designed to
completely erase ultra-high-frequency noise. Performance is optimized for
digital music with an undistorted frequency response extending above the range
of audibility. Combined with a 768 kHz / 32-bit DAC, you can enjoy an enhanced
sense of realism from digital sources, with none of the unnatural "synthesized"
feeling sometimes produced by digital processing.
Designed for Enhanced Quality with Reduced Resonance
Held in place by a flat chassis designed to tame resonance, the digital
audio board is isolated from the analog circuitry. The L/R channels are
symmetrical to equalize signal path-lengths and minimize stereo playback errors.
The coaxial digital inputs, phono input, speaker posts, and RCA line inputs are
gold-plated to prevent corrosion and improve connectivity. The A-9150 is
finished off with an aluminum front panel and volume control.
Additional Features
High-current, low-impedance drive
192 kHz / 24-bit HD audio playback via digital coaxial input
Bass, treble, balance control
AKM AK4452 768 kHz / 32-bit digital-to-analog converter
Amplifier
Power Output 60 W per channel @ 4 Ohms, 20 Hz to 20 kHz, 0.08% THD, 2
channels driven, FTC
THD & Noise 0.08% (20 Hz to 20 kHz, rated power)
Inputs 2 x optical TOSLINK
2 x digital coaxial
5 x stereo RCA
1 x stereo RCA phono with ground screw
Outputs 1 x stereo RCA line out
1 x stereo RCA pre-out
1 x 1/4" (6.35 mm) headphone (front)
Other Connectors 1 x 1/8" (3.5 mm) RI remote
Speaker Connectors 4 x binding post pairs (A + B)
Input Sensitivity and Impedance Line: 220 mV / 220 kOhms
Phono MM: 4 mV / 47 kOhms
Phono MC: 0.4 mV / 120 Ohms
Output Level and Impedance RC: 0.2 V / 2.3 kOhms (Line Out)
Phono Overload (MM): 70 mV / 1 kHz, 0.5%
Phono Overload (MC): 7 mV / 1 kHz, 0.5%
Frequency Response 10 Hz to 100 kHz +1 dB / -3 dB (Line 1, Direct)
Tone Control Bass: ±10 dB (100 Hz)
Treble: ±10 dB (10 kHz)
Signal to Noise Ratio Line 1, IHF-A: 107 dB
Phono MM, IHF-A: 82 dB
Phono MC, IHF-A: 73 dB
Speaker Impedance A or B: 4 to 16 Ohms
A + B: 8 to 16 Ohms
General
Power Supply 120 VAC, 60 Hz
Power Consumption Active: 170 W
Powered, No Sound: 35 W
Standby: 0.15 W
Dimensions (W x H x D) 17.1 x 5.5 x 13.1" (435 x 139 x 331 mm)
Weight 20.3 lb (9.2 kg)
Packaging Info
Package Weight 25.0 lb
Box Dimensions (LxWxH) 22.0 x 16.7 x 10.5"