Pioneer A-50-S User Manual

Integrated Amplifier

A-50DA-K/-S

A-50DA-K

A-50DA-S

Experience the high-fidelity amplification created by the A-50DA-K/-S Class D integrated amplifier featuring ESS

SABRE

Ultra DAC, Separated Construction, and aluminium front panel. The USB-DAC featuring asynchronous transfer supports up to 384 kHz LPCM and 11.2 MHz DSD files, letting you enjoy extremely precise reproduction of Hi-Res Audio sources.

DESIGN & BUILD

Pure Audio Grade High Effic iency Power MOSFET Ampl ifier › (Class D Amplifier)

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Separated Construction for Preamp and Power Amp Isolated Power Supply › Source Direct Mode › Highly Acclaimed ESS SABRE ›

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384 kHz/32-bit USB-DAC for Asynchronous Transfer Trans -Stabilizer › Speaker A, B, A+B Selector › Aluminium Front Panel and Rotary Knob › Auto Power Down › Hair Line Finish Remote Controller ›

Ultra DAC

SPECIFICATIONS

90 W + 90 W (20 Hz-20 kHz, THD › 0.5 %, 4 ohms)

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65 W + 65 W (20 Hz-20 kHz, THD 0.5 %, 8 ohms) THD: 0.02 % (Rated Output -3 dB, 8 ohms, 1 kHz) › Guaranteed Speaker Impedance: ›

4-16 ohms (A or B), 8-32 ohms (A+B), 4-16 ohms (Bi-Wiring)

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Frequency Response (Measured with DIRECT button switched on): SACD/CD, NETWORK, LINE1, LINE2 5 Hz-50 kHz, ±3 dB

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RIAA Deviation: PHONO MM 20 Hz-20 kHz, ±0.5 dB Signal-to-Noise Ratio (IHF, A Network, Short Circuited) ›

SACD/CD: 101 dB, Phono: 89 dB (MM: 5 mV input), Power Amp Direct: 110 dB

CONNECTIONS

Exclusive › Gold-Plated Speaker Terminals (Large Type)

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Gold-Plated Analogue Audio Input (Phono MM, CD, LINE 1, LINE 2, NETWORK, USB, COAXIAL, POWER AMP DIRECT IN)

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USB Input for Asynchronous Transmission Digital Coaxial Input › Digital Optical Input › Audio Output (LINE 2, PHONES) › SR In/Out › AC Inlet (Large Type) ›

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Channel Separation

SACD/CD: 90 dB (100 Hz), 84 dB (1 kHz), 75 dB (10 kHz) Power Amp Direct: 95 dB (100 Hz), 95 dB (1 kHz), 80 dB (10 kHz)

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Power Requirements: AC 220-230 V, 50 Hz Power Consumption: › 72 W

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Power Consumption During Standby: 0.3 W Dimensions (W x H x D): 435 x › 138.5 x 357 mm

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Weight: 11.2 kg

REAR PANEL

A-50DA-K/SYXE8

High-Fidelity Class D Ampliﬁer

Pio neer has cons idera ble adva ntage over ot her m anufa cturers wit h unr ivalled exper ience in digi tal a mplifier s. Th e Cla ss D amp lifie r all ows fle xible ci rcu it la yout and patt er ning to rea lise optim al desig n wit hin the constra ints of am pli fier const ruction. With mult iple ori ginal part s sup porting eff ectiv e operat ion, the c omponent full y bri ngs out the b est from t he Class D am plifier, reprodu cing refreshin g, pu re sound wi th sub tle deta ils w hich cou ld no t be thoroughly expresse d by ana logue amplifiers.

Direct Energy Ampliﬁer

Pio neer’s “Direct Ene rgy ” c oncep t is pursued to th e utm ost, wit h optimised power supply/output circuit blocks, as well as parts layout to rep rod uce clea rer soun d with redu ced d istor tio n. Th e result ing exc ellent s ignal tran sfe r and high S/N rat io br ing o ut the b est m usica l reproduction from the integrated amplifier.

Isolated Power Supply

The winding s for the pow er am plifi er, p re- ampli fier, and con tro ls are ea ch separ ated inside t he po wer t ransform er to cut out nois e int erference. This a llows even mo re rea listi c amplif icati on of the aud io signals.

ESS SABRE32 Ultra DAC

High-performance 8ch ESS SABRE32 Ultra DAC is adopted on the A-50DA-K/-S. It features low noise and high S/N ratio that enable 4ch parallel drive for each channel at maximum 384 kHz. The result is clear and open, yet solid sound with superior audio quality.

384 kHz/32-bit USB-DAC for Asynchronous Transfer

The integra ted a mplif ier allo ws di rec t USB co nnect ion w ith a PC . What’s more, the signal transfer is done with USB asynchronous transfer mode, which controls the transfer process by using its high-accuracy clock, ensuring high-quality sound reproduction. This eliminates jitter, reproducing master quality sound with extremely precise audio sig nals. In addi tion to 11.2 MHz D SD, the unit suppo rts LPCM with sam pling frequ ency of 44.1, 48, 88.2, 96, 176 .4, 1 92, 3 52.8, an d 384 kHz, and quantization bit rate of 16, 24, and 32 bits.

Gold-Plated Inputs, Large Machine-Cut Speaker Terminals, and Large AC Inlet with Polarity Indication

High-grade parts are used for the integrated amplifier’s terminals to provide a stable connection for pure sound delivery. The A-50DAK/- S features machi ne-cut g old-p lated brass s peake r ter minals, exc lusive g old-p lated in put t ermin als, and a la rge AC inle t wit h polari ty ind ication. The durab le brass spea ker term inals are set apart t o eas ily acc ommodate thic k hig h-g rade cable s. The s peake r ter minal ha s a large resin base for additional safety.

Aluminium Front Panels and Knobs

Ext ra-thick 3.5 mm al umi nium is us ed for t he front pane l, pro vidin g rig idity fo r a s table pe rform ance. The alu miniu m vol ume knob offers a s olid, hi gh-gr ade f eel and style . The In put S elect or, B alanc e, and Bass/Treble knobs are also made of aluminium.

PIONEER and the Pioneer logo are registered trademarks of Pioneer Corporation, and are used under license. •SABRE™ is a trademark of ESS Technology, Inc. •The product with the Hi-Res Audio logo is conformed to Hi-Res Audio standard dened by Japan Audio Society. The logo is used under license from Japan Audio Society.

Note: Speciﬁcations and design subject to change without notice.