A-9110 (PZA)
Integrated stereo amplifier
Onkyo builds on the success of its A-9010 pre-main amplifier with the new A-9110 Integrated Ethereal Amplifier, a component that refines an original amplifier design that earned a sterling critical and commercial reputation for dynamic musical sound. Lively dynamics, deep bass, and layered detail emerge from the warm, expressive tuning. WRAT delivers high-current power stability through large custom capacitors, while FNFB bass amplifiers capture the depth and spatiality of analog and hi-res recordings. Five RCA inputs, including an MM phono stage, connect your sources, while high-quality speaker posts reveal Onkyo's hi-fi heritage and painstaking attention to detail. The A-9110 invites you into every record, hours spent comfortably in pure analog sound.
Stable high-current power with wide-range amplifiers
Dynamic changes in music cause impedance to fluctuate. If power can't be delivered when the impedance drops, sound quality suffers. Onkyo's solution is WRAT, specifically its high-output IE transformer, huge custom-made main audio capacitors, and carefully selected high-quality parts. High-current stability controls the speaker drivers for accurate and confident reproduction of dynamic musical passages. Additionally, the A-9110 features Onkyo's proprietary back-firing amplifier topology, which distinguishes the timbral warmth, fullness, and vibrancy of the recording. This circuit captures a wide frequency spectrum with unusually low distortion.
Phase Matching Bass Boost enriches the sound at low volume
Most pre-head amps have a noise-reduction knob designed to boost the low-midrange sound. However, conventional designs are prone to phase shifting, which degrades the clarity of the vocal frequency band. Onkyo's Phase Matching Bass Boost feature eliminates phase shifting between the low- and midrange frequency bands above 300 Hz. Bass response is improved without compromising vocal clarity, which is especially useful when playing music at low volumes where bass and high-frequency sounds are harder to hear.
Sounds clearer at low volumes
When playing music at low volumes, the signal typically drops close to the component's noise floor. The signal picks up the noise, which amplifies it, resulting in muffled sound. To prevent this, the A-9110 features Optimum Gain Volume Circuitry, a volume circuit that requires less than half the usual amount of attenuation. The signal never approaches the noise floor, so you can enjoy clearer sound at low volumes.
Thick and rigid chassis tames resonance
Every hi-fi component generates electromechanical resonance. This translates into signal noise, which impacts the sound coming out of your speakers. To combat the negative effects of vibration, the A-9110 features a rigid metal chassis that's 1.3 times thicker than the A-9010 at 1/16" (1.6 mm). Working in conjunction with large, spacious isolators, unwanted resonance is virtually eliminated.