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Yamaha A-S1000

Stereo integrated amplifier

12 Reviews | 7 questions - 16 answers

Item # 022AS1000B

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Overview

Our take on the Yamaha A-S1000

Bring out the best in your audio system with Yamaha's A-S1000 integrated amplifier. Its sophisticated design ensures true-to-life, transparent sound — from a vocalist's subtle intake of breath before she sings, to the punchy thump of a kick drum. And it offers plenty of power too, delivering 90 full-bandwidth-rated watts to each of your stereo speakers — you'll enjoy clean, undistorted audio, even during your music's most demanding passages. Wide-range frequency response lets you experience all the details on your LPs, CDs, and even high-resolution SACDs and DVD-Audio discs in stereo mode.

Bring out the best in your audio system with Yamaha's A-S1000 integrated amplifier. Its sophisticated design ensures true-to-life, transparent sound — from a vocalist's subtle intake of breath before she sings, to the punchy thump of a kick drum. And it offers plenty of power too, delivering 90 full-bandwidth-rated watts to each of your stereo speakers — you'll enjoy clean, undistorted audio, even during your music's most demanding passages. Wide-range frequency response lets you experience all the details on your LPs, CDs, and even high-resolution SACDs and DVD-Audio discs in stereo mode.

Exceptionally clean, pure sound
The A-S1000 employs many of the same high-end features as the top-of-the-line A-S2000, including Yamaha's unique power amplifier design. It isolates the "plus" and "minus" sides of each channel, ensuring exceptionally clean, pure sound with minimal levels of noise and distortion. This amp is also a great choice for record lovers — it can handle signals from MM (moving magnet) cartridges, as well as from more demanding MC (moving coil) cartridges.

Use tone controls without sacrificing audio quality
Many amps offer direct modes that let you bypass tone control circuitry for optimum sound quality. But you don't have to choose between audio quality and properly balanced sound with the A-S1000. Its volume and tone controls are wired in parallel — this allows you to adjust treble and bass to your liking, without muddying your music.

A strong, vibration-resistant build
This integrated amplifier boasts a thoughtful, rock-solid design. Yamaha organized the left and right channels into a straight, symmetrical layout, keeping the signal path short and the sound clean. High-end internal components — such as extruded aluminum heat sinks and custom-made capacitors — allow the A-S1000 to handle demanding passages effortlessly. An anti-resonant base, rigid center bar, and height-adjustable steel feet provide a sturdy, vibration-resistant foundation.

Connections and convenience
This integrated amp offers enough inputs to connect six audio components, including a turntable. Two sets of main speaker outputs let you connect an additional pair of speakers. Separate preamp input/line-level output jacks allow you to use the A-S1000 as an independent power amplifier or preamp for future system expansion. And the included remote gives you easy control of the amplifier and the other Yamaha audio components in your system.

I bought this unit for a simple classic design without gaudy display but separate stereo aplification. As it drives classic music dynamic and crisp to my martin-logan motion 40. It meets the expectation.

INTAE, new milford, CT

What's in the Box:

  • Integrated stereo amplifier
  • 6.5' AC power cord
  • RAS21-WN37850 remote control
  • 2 "AA" batteries
  • Owner's Manual (Eng/Fre)
  • Safety Brochure (Eng/Fre)
  • US Warranty card

Product Highlights:

  • 90 watts x 2 channels into 8 ohms (20-20,000 Hz) at 0.02% THD
  • 140 watts x 2 channels into 4 ohms (20-20,000 Hz) at 0.02% THD
  • 4-ohm capability allows use with a wide range of speakers
  • ToP-ART (Total Purity Audio Reproduction Technology) for high-quality sound
  • signal-to-noise ratio: 98 dB (CD/DVD Direct Amp mode), 93 dB (phono MM), 85 dB (phono MC)
  • 6 RCA audio inputs, including MM (moving magnet)/MC (moving coil) phono input
  • rotary bass and treble controls
  • continuously variable loudness control
  • Floating Balanced Power Amplifier design reduces distortion and noise
  • triple parallel electronic volume and tone controls
  • discrete phono equalizer circuit
  • preamp out/main in jacks
  • headphone jack
  • front-panel switching for 2 pairs of speakers
  • binding-post speaker connectors
  • remote control
  • weight: 48.5 lbs.
  • 17-1/8"W x 5-15/16"H x 15-5/8"D
  • warranty: 2 years
  • Our 60-day money-back guarantee
Reviews

Yamaha A-S1000 Reviews

Average Customer Review(s):

(12 Reviews)
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Details

Hands-on research

Features and Specs

Performance Specs
Watts RMS per Channel (8-ohms) 90
Watts RMS per Channel (6-ohms) 105
Watts RMS per Channel (4-ohms) 140
Frequency Bandwidth 20-20k
THD 0.02%
Minimum Impedance 4 ohms
Signal to Noise Ratio 98
Digital Music Features
Built-in DAC (Digital to Analog Converter) No
High-resolution Audio Playback No
Bluetooth No
Wi-Fi No
Connections
Total Analog Inputs 6
Phono Input Yes
Optical Digital Inputs No
Coaxial Digital Inputs No
USB Input No
Preamp Outputs Stereo
Headphone Output 1/4"
Dimensions and Warranty
Width (inches) 17-1/8
Height (inches) 5-15/16
Depth (inches) 19-3/16
Weight (pounds) 48.5
Parts Warranty 2 Years
Labor Warranty 2 Years

Product Research

Audio Features
Remote Control
Connections

Audio Features

Overview: The Yamaha A-S1000 Integrated Stereo Amplifier features a built-in two-channel amplifier with A & B speaker outputs and six analog inputs.

Floating Balanced Circuit Design: The perfectly symmetrical, fully new floating balanced power amplifier maximizes the performance of the analog amplifier by reducing distortion and noise.

Independent Power Supplies: The stereo amplifier features four independent high-capacity power supplies.

Aluminum Front-Panel and Heavyweight Feet: The A-S1000 features an aluminum front-panel and newly developed heavyweight feet to suppress vibrations. The foot-height of the unit is adjustable.

ToP-ART/High Current Amplification: Yamaha uses the ToP-ART (Total Purity Audio Reproduction Technology) design concept, which combines the latest and best technologies, parts, and circuit designs, to maximize sound quality. High Current Amplification uses superior quality components from input to output to achieve high current power with low impedance.

High Current Stereo Amplifier: The Yamaha A-S1000 features a highly dynamic, powerful stereo amplifier with low impedance drive capability. The stereo amplifier is rated at 90 watts x 2-channel at 20-20kHz, in 8-ohms with 0.02% THD; 105 watts x 2-channel at 20-20kHz, in 6-ohm with 0.02% THD; and 140 watts x 2-channel at 20-20kHz, in 4-ohm with 0.02% THD.

Triple Parallel Electronic Volume and Tone Controls: The Yamaha A-S1000 is equipped with triple parallel electronic volume and tone controls. The stereo amplifier features independent bass (50Hz) and treble (20kHz) controls so you can increase or decrease the low and high frequency response (+/-9dB).

Note: The volume and tone controls do not effect the amplifiers Main Direct Input or Record Output.

Balance: You can adjust the sound output balance of the left and right speakers connected to the amplifier.

Audio Mute: The Audio Mute function reduce the current volume level by approximately 20 dB.

Speaker Selector: The Speaker Selector switch allows you to select only A speakers, only B speakers, A+B speakers, or no speakers; so you can control which speakers are playing.

Remote Control

Remote Control: The integrated amplifier comes supplied with an IR remote control for wireless operation of the unit. The remote control can also be used to control select Yamaha audio components such as a CD player or AM/FM tuner. The remote has a range of 20 feet at an angle of 30-degrees left-to-right of the unit's front-panel IR sensor.

Connections

Analog Inputs/Outputs: The Yamaha A-S1000 integrated stereo amplifier is equipped with six analog RCA stereo inputs for connecting an external audio source such as a CD player, AM/FM tuner, Turntable, and/or cassette deck; as well a preamp or AV receiver. There is also one analog RCA stereo output for recording through the amplifier.

Note: The unit's Phono input also features a ground terminal and is designed to connect a turntable with an MM or MC cartridge.

Main Direct Input: One of the A-S1000's analog inputs is labeled Main Direct Input. This input allows you to connect your preamplifier or AV receiver directly to the A-S1000 and use the Yamaha stereo amplifier as a power amplifier to drive a pair of speakers in your system.

Note: Audio signal coming into the amplifier's Main Direct Input is only output through the speaker outputs of the A-S1000. No audio signal will by output from the stereo amplifier's Pre-Out, Rec Out, or Headphone Output.

Pre-Out: The Yamaha integrated stereo amplifier is equipped with a stereo preamp output for connecting a powered subwoofer or to use the A-S1000 as a preamplifier and connect it to a larger power amplifier to power your speakers.

Speaker Outputs: The Yamaha stereo amplifier features gold-plated binding post terminals for its A & B speaker outputs. The speaker outputs are color-coded for easy connection. You can use the A & B speaker outputs to power two pair of separate speakers or you can bi-wire a single pair of speakers.

Note: If you use two sets (A and B) of speaker, the impedance of each speaker must be 8-ohm or higher. When only using on set of speakers (A or B), use speakers with an impedance of 4-ohm or higher.

Headphone Output: The A-S1000 integrated amplifier is equipped with a front-panel 1/4" headphone output for connecting a pair of headphones (sold separately). Once a set of headphones are connected, the amplifier's speaker outputs mute automatically.

Note: The headphones do not function for the amplifier Main Direct Input.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Accessories
Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

I wanted a simple, rugged, 2 channel amp for my hi-fi set-up. This amp seems to fit the bill. [ Samuel  Mar 09, 2017 ]
I currently have a Yamaha RX-797 receiver and like the sound quality. I've been looking at integrated amplifiers for a while and have decided to stick with the Yamaha. The Yamaha A-S1000 seems like it will be a good upgrade from my RX-797. [ JOEY  Oct 18, 2016 ]
I trust crutchfield. [ INTAE  Jan 08, 2016 ]

7 questions already asked

If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings/connections on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer. You can also post your question in our forums: http://community.crutchfield.com. Or try our online support center: http://crutchfield.custhelp.com/app/answers/list/kw/. [ Kenny  Dec 06, 2016 ]  Staff
I tried, liked, and returned the Yamaha as1000. It's a beast of a amp with pre outs for EQs etc and i sounded really good but not significantly better than the Yamaha rs700 stereo receiver i have owned for the last several years. If my receiver crapped out tomorrow i'd try one of Yamahas other amp such as the 801 or 701 though neither has the pre outs for an eq. btw the rs700 does have pre outs and I've tried my yamaha eq70 on it before. [ ALAN R  Nov 05, 2016 ]
We currently only offer the A-S1000 integrated amplifier in black. I couldn't locate any options for the A-S1000 on Yamaha's site in silver; but you may want to contact them directly for more information on availability in a silver finish. If you have any further questions on the A-S1000 or other amplifier options, feel free to contact an Advisor directly by phone (1-800-324-9695) or online chat. I hope that helps! [ Larry  Nov 06, 2016 ]  Staff
No, neither model has a Loudness Control. The 2000 is the same amplifier as the 1000 with the Phono MM/MC switch moved to the front, and the addition of a Balanced Input. The A-S801 and A-S701 both include a Loudness Control. The 801 and the 701 are the same amplifier except for the addition of DAC capability on the 801. [ James  Jul 08, 2016 ]
There is no separate 'loudness' control. there 4 control knobs: volume, treble, bass and balance as you see on the photo. By combination, you should be able to control 'loudness'. [ INTAE  Jul 08, 2016 ]
No it does not. [ Derrick  Jul 08, 2016 ]
It's a metal Volume Knob that has a very smooth, high quality feel. [ James  Jul 08, 2016 ]
Metal. Outer edge on coated with a rubber like material so it is non-slip. [ Douglas  Apr 06, 2016 ]
It appears to be plastic. [ Robert  Apr 02, 2016 ]
I cannot tell. Aluminum or possibly nylon. I do not want to remove to check. Not important to me since i use a remote controller. Overall the unit is very heavy and ruggedly built. [ INTAE  Apr 01, 2016 ]
Yes you can. [ MICHAEL S  Jan 22, 2015 ]
Thank you [ Leigh  Jan 05, 2015 ]
Yes - it would be the pre-out. You would need to have a power'd subwoffer attached to this port. Example - "svs pb12-plus" you would plug an av cable from the pre-out to the low level inputs of the sub If you have a sub that only used 1 cable you would need a reverse y cable to plug into the left-right of the amp. [ Guest  Jan 05, 2015 ]
No, there has no sub port. [ chiayuan  Jan 05, 2015 ]
The AS-1000 is very well built and I found all functions to work perfectly. I found the sound to be cleaner and less bright compared to lower model Yamaha receivers and integrateds. The very warm midrange can muddy the sound to the point of obscuring bass frequencies. The result is a sound that is crisp and clean on top but rhythmically confused on bottom. The lack of rhythmic definition detracts from any palpable sense of dynamic impact in music. [ James  Jul 08, 2016 ]
We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question. [ Jeff  Jan 22, 2014 ]  Staff
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Yamaha A-S2000BL

Yamaha A-S2000

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$1,999.99

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Exceptionally transparent, low-distortion sound

The Yamaha A-S2000 offers these features:

  • 1 set of XLR inputs for connecting a compatible high-end audio source
  • fully balanced amplification that virtually eliminates noise
  • a discrete headphone amp for better sound with high-performance headphones