A-S3000
Profoundly accurate sound with the full expressive power of the music.
Exceptional sonic purity, elimination of signal loss — in an exquisite, elegant design.
The supreme culmination of the Yamaha line — the A-S3000.
- Rigid streamlined construction — provides strict anti-vibration protection and enables shortest cabling routes
- Large toroidal transformer, solidly mounted with independent three-dimensional inner frame
- Comprehensive low impedance design, shortened signal paths and copper-plated chassis
- 1/4" thick top panel made of non-magnetic aluminum plate
- Left-right symmetrical design for independent pre amp and power amp blocks
- Floating and Balanced Power Amplifier with MOSFETs
- All-stage balanced transmission
- Direct drawing toroidal transformer for complete elimination of signal transmission loss
- Exceptionally low impedance through secure screw connections
- Superior quality electronic volume control for optimum sound
- Discretely configured phono amp
- Exquisite, large level meters reflect the dynamics in the music
- Meticulously designed and beautiful in appearance — just like a musical instrument
- Original speaker terminals for high sound quality, as well as beauty and ease of use
- Obsessive, meticulous switch design — elaborate, richly textured, easy-to-use
Features
Rigid Streamlined Construction — Provides Strict Anti-vibration Protection and Enables Shortest Cabling Routes
The A-S3000 has adopted a newly designed highly rigid double structure construction in order to achieve profoundly pure and accurate audio amplification. The bottom chassis and insulator ward off external vibration and provide each circuit board a floating structure supported by an independent inner frame, thoroughly eliminating the impact of vibration. And the power source unit, which consists of a power transformer and capacitors, which are major sources of internal vibration, is fixed firmly with a three-dimensional structured inner frame and is supported solidly by the front panel and the rear panel. The power amplifier circuit board and the weighty heat sink are attached to the left and right inner frames. The power supply unit and amplifier circuits are thus structurally isolated, achieving an ideal chassis structure which thoroughly blocks the transmission of vibration. Moreover, the inner frame that supports the power transformer is shaped with ample space below it, allowing passage of the wiring to each circuit over the shortest possible route. The newly developed chassis with this innovative structure helps to minimize the length of the signal paths and achieve low impedance, as well as providing high rigidity and anti-vibration benefits. The result is a dramatic reduction in signal loss, for remarkably pure audio amplification.
Large Toroidal Transformer, Solidly Mounted with Independent Three-dimensional Inner Frame
An independent three-dimensional inner frame has been employed in order to provide a more solid mount for the large toroidal transformer, which is installed in the center of the A-S3000, considering the ideal weight balance. The completely copper-plated inner frame has a structure which integrates the front-back and left-right frames with a convex-shaped highly rigid main frame as its base, reducing vibration coming from all directions. For the base, to which the power transformer is installed on the inner frame, brass was selected by strictest examining the particular sonic properties of various materials by exhaustive listening tests. This material effectively reduces vibration caused by the power transformer, helping to create sound of greater clarity and spaciousness.
Specifications
| Maximum Power | (8 ohms, 1 kHz, 10% THD) 130 W + 130 W / (4 ohms, 1 kHz, 10% THD) 210 W + 210 W |
|---|---|
| Minimum RMS Output Power | (8 ohms, 20 Hz-20 kHz, 0.07% THD) 100 W + 100 W / (4 ohms, 20 Hz-20 kHz, 0.07% THD) 150 W + 150 W |
| Dynamic Power/Channel | (8 / 6 / 4 / 2 ohms) 120 / 150 / 200 / 300 W |
| Damping Factor | (8 ohms, 1 kHz) 250 |
| Input Sensitivity/ Impedance | CD 200 mV / 47 kilohm, Phono MM 2.5 mV / 47 kilohm, Phono MC 100 μV / 50 ohms, Main in 1 V / 47 kilohm |
| Frequency Response | CD, etc. to speaker out, Flat position 5 Hz-100 kHz +0 dB / -3 dB, CD, etc. to speaker out, Flat position 20 Hz-20 kHz +0 dB / -0.3 dB |
| RIAA Equalization Deviation | Phono MM (20 Hz-20 kHz) ±0.5 dB / Phono MC (20 Hz-20 kHz) ±0.5 dB |
| Total Harmonic Distortion (20 Hz–20 kHz) | CD balanced to speaker out 0.025% (50 W / 8 ohms), CD, etc. to speaker out 0.025% (50 W / 8 ohms), Phono MM to Rec Out 0.005% (1.2 V), Phono MC to rec out 0.02% (1.22 V) |
| Signal-to-Noise Ratio [IHF-A Network] | CD, etc., (200 mV, Input Shorted) 103 dB, Phono MM (5 mV, Input Shorted) 93 dB, Phono MC (500 μV, Input Shorted) 85 dB |
| Residual Noise | CD, etc., IHF-A-Network |
| Channel Separation (1 kHz/10 kHz) | CD, etc., Input 5.1 kilohm Terminaled 74 dB / 54 dB, Phono MM, Input Shorted, Vol: -30 dB 90 dB / 77 dB, Phono MC, Input Shorted, Vol: -30 dB 66 dB / 77 dB |
| Tone Control Characteristics | Bass Boost / Cut (at 50 Hz) ±9 dB, Bass Turnover Frequency 350 Hz, Treble Boost / Cut (at 20 Hz) ±9 dB, Treble Turnover Frequency 3.5 kHz |
| Audio Muting | -20 dB (approx.) |
| Load Impedance | If you use two sets (A and B), the impedance of each speaker must be 8 ohms or higher. |
| Dimensions (W x H x D) | 17-1/8” x 7-1/8” x 18-1/4” |
| Weight | 54.2 lbs. |