Yamaha A-S501 Integrated Amplifier

Model: AS501BL UPC: 027108948744 Item: 1278

$549.95 OR

Regular Price: $599.95

Save: $50.00 (8%)

Color: Black - In Stock

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754 Route 309 (Bethlehem Pike) Montgomeryville, PA 18936
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(215) 368-8343
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38 Greenfield Avenue, Ardmore, PA 19003
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(610) 649-7002
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Yamaha's A-S501 is the Integrated Amplifier Your Sound System Needs

The amplifiers of today need to be versatile above all else - Yamaha doesn't skimp on a single feature with the A-S501. From Bluetooth compatibility to cutting edge audio tech, Yamaha has future proofed your new amplifier for years to come. 

Product Information


  • High performance, Yamaha-quality amplifier
  • Total Purity Audio Reproduction Technology included
  • Minimizes signal degradation for superior sound
  • Pure Direct technology moves sound through shortest possible path for sound quality
  • LED-lit rotary input selector
  • Optical and coaxial digital media inputs
  • 6 RCA audio inputs, including a moving-magnet (MM) input
  • Bluetooth-ready with Yamaha YBA-11 adapter (sold separately)
  • Subwoofer output
  • 2x RCA recording outputs
  • 2x gold-plated binding-post speaker connection pairs
  • 0.25” headphone jack
  • Remote control
  • Auto standby power management
  • Dimensions: 17.13” W 6” H x 15.25” D
  • Weight: 22.7 lbs
  • Warranty: 2 years
  • World Wide Stereo 60-day guarantee and expert product support

Does the Perfect Amp Exist? 

Have a lot of home audio/theater devices? Tired of making a mess cross-wiring? Time to unify all those parts into a home stereo or home theater? Consider the Yamaha A-S501 Integrated Amplifier. Boasting professional-grade Yamaha circuitry and inputs and outputs for your entire audio/video collection, plus timeless design, it’s sure to sit at the center of your entertainment center. 

What’s in a Name? 

Ever notice that so many rockers’ instruments are made by Yamaha? This is no coincidence. Specializing in providing professional-grade audio for generations, Yamaha makes some of the best instruments and sound systems on the planet. Now, with the A-S501, put some of that experience to work in your own stereo setup or home theater. 

Your Entertainment Center’s Very Own Transformer 

At its core, an amp is a wonder of modern electronics engineering, converting a small input circuit to a much larger output one, rather like a highly miniaturized transformer. Experience superior Yamaha sound technology as the current goes from input to output in a straight, symmetrical current, courtesy their Total Purity Audio Reproduction Technology (ToP-ART) concept. Only a Yamaha Integrated Amplifier can provide this type of advanced tech for your audio needs!  

Better Quality Parts for Better Sound 

If you were to open this amp up (please do not try at home!) you would notice Yamaha’s dedication to high-quality components. The power transformer, custom back capacitors, speaker relays, grounding relays, heat sinks, and other various parts that go into this wonder of techno-wizardry are top-of-the-line. Quality matters when it comes to sound, and Yamaha only selects the very best. 

The Shortest Current for the Best Sound 

In modern electronic circuitry, current passes through many “gates” -- and each gate the circuit passes through causes infinitesimal signal degradation. This is what causes distortion in the sound output. The A-S501’s Pure Direct Mode solves this. By having sound signals bypass the buffer amp, tone, and loudness and balance controls, the signal doesn’t degrade, and distortion is nipped in the bud. 

Make Your Music Loud --  Or Soft 

Looking for greater control over your signal? With its new continuously variable loudness control, the A-S501 allows you to manually control your music’s balance of high and low frequencies. By compensating for natural loss in the human ear, especially at soft levels, this control gives you full control over your music’s tonal range -- at any volume level. 

Connection Option Galore 

Easily stream sound from your TV and/or blu-ray players with the A-S501’s included optical-digital coaxial terminal. Or go analog with its included moving-magnet (MM) phono terminal for all your best vinyl. Deepen your bass with its dedicated subwoofer terminal. Or plug in Yamaha’s optional Bluetooth adapter (sold separately) and connect your devices wirelessly. 

Multi-Room Capabilities

Ever wanted to listen to two different songs in two different rooms at the same time? Now you can. With four gold-plated speaker terminals for a high-quality loss-preventing connection, hook up a full 4-channel surround sound system in one room -- or hook up two separate speaker systems in two different rooms, with a different song in each one. Do more with this amp than you ever thought possible. 

Understated Minimalism 

Experience the cleanly minimalist beauty of Yamaha hi-fi design with with the A-S501. Its easy-to-operate, richly-textured aluminum front panel, with a silver hairline finish, contrasts elegantly with the cool black body. Plus, this care and attention to detail comes through on the included remote. Intuitive operation is at your fingertips.



  • Minimum RMS Output Power (8 ohms, 20 Hz-20 kHz): 85 W + 85 W (0.019% THD)
  • High Dynamic Power/Channel (8/6/4/2 ohms): 130 / 150 / 185 / 220 W
  • Frequency Response: 10 Hz -100 kHz +/- 1.0 dB
  • Total Harmonic Distortion (CD to Sp Out, 20 Hz-20 kHz): 0.019% (50 W / 8 ohms)
  • Signal-to-Noise Ratio (CD): 99 dB (input shorted, 200 mV)
  • Damping Factor: 240
  • Digital Input: Yes (optical / coaxial)
  • Audio In / Out: 8 / 2
  • Subwoofer Out: Yes
  • Pure Direct: Yes
  • ToP-ART: Yes
  • DC out: Yes
  • Standby Power Consumption: 0.5 W
  • Power Management (Auto Power Standby): Yes
  • Dimensions (W x H x D): 17-1/8" x 6" x 15-1/4"
  • Weight: 22.7 lbs.


Customer Reviews for Yamaha A-S501 Integrated Amplifier

5.0 / 5.0
7 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
Great amp!
Great sounding app. Very easy to setup and attach all of my various receivers.
July 6, 2021
3 months ago
Rated 5 out of 5
Worth $ it !
January 20, 2021
Originally posted at
Rated 5 out of 5
A diamond in the rough!
I had given this unit a bad review, just three stars. The Pure Direct was unlistenable, very harsh. But another whole day of intense and varied music, (rock, jazz, classical, classic rock and hip-hop) and the A-S501 has burned in beautifully. I've never had a unit go from so bad to sooo very good. So if you get one, don't be like me. Be patient.
January 22, 2020
Originally posted at
Rated 5 out of 5
Overall great choice for the price.
Fantastic sound and clarity. Decent power and fullness through all levels.
This review was collected as part of a promotion
September 20, 2019
over 2 years ago
Rated 5 out of 5
The amplifier worked great. It provides a great sound.
This review was collected as part of a promotion
September 3, 2019
over 2 years ago
Rated 5 out of 5
This will last a long time , but if I have 2 yes
I have always bought Yamaha stereo equipment in the past. It works like the sun all the time ! So now I want 2 play & listen 2 music the way I did in yesterday's. Blast from the past. Still have my stash of LP's , so the A- S501BL is the first part of the foundation. Then Yamaha turn table , CD player , MartinLogan Motion speakers , this amp will drive them.
November 24, 2018
Originally posted at


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Can this unit be mounted in a rack system?
A shopper on Jan 21, 2021
  Thanks for your inquiry. The Yamaha A-S501 is (like many components) 17 1/8 wide. Many traditional rack systems use narrower components in the rack that will not accommodate current components. Measure your rack to confirm. Note that standard equipment racks will accommodate modern components. The A-S501 has no provision for rack ears but could be used with a standard rack shelf.