User Manual for Yamaha A-S2100 180W Integrated Stereo Amplifier Click to enlarge the picture
Contents of the user manual for the Yamaha A-S2100 180W Integrated Stereo Amplifier
- Product category: Amplifiers Yamaha
- Brand: Yamaha
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Yamaha Amplifiers
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User manual for the Yamaha A-S2100 180W Integrated Stereo Amplifier contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Yamaha product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Yamaha user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Yamaha product will considerably shorten its lifespan!
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Product description The black A-S2100 Integrated Amplifier from Yamaha offers 90W RMS power per channel and uses floating and balanced power amplifier technology with MOSFETs. The MOSFETs have the same polarity on the plus and minus sides to provide a complete symmetrical design by eliminating sound quality variations due to difference in polarity. This results in sound with an improved signal-to-noise ratio and a well-defined sound field.The amplifier features a customized EI transformer for optimum compatibility with the chassis. It also features four large capacity carbon sheath block capacitors for a stable sound output during high volume settings. The control amp and control system is equipped with 12 shunt-type local regulators that prevent deterioration caused by current fluctuations. The EI transformer is mounted on the chassis using a brass washer, minimizing internal vibrations that would result in noise.The included remote control can be used to adjust the volume and input switching controls of the amplifier, and can also operate the CD-S2100 CD Player (sold separately). - Floating and Balanced Power Amplifier with MOSFETs
- The basic design of the power amp circuit adopts Yamaha's floating and balanced power amplifier technology. Adopting output elements with the same polarity on the plus and minus sides of the output stage, and also completely separating the NFB (negative feedback) circuit and power supply into a total of four plus and minus sides of the left and right channels, results in thoroughly symmetric push-pull operation of the output stage. Completely floating the entire power amp circuit from the ground removes any negative impact of minute voltage fluctuations or ground noise. Moreover, the output elements are comprised of MOSFETs, which provide a warm and natural sonic character. The MOSFETs have the same polarity on the plus and minus sides to provide a complete symmetrical design by eliminating sound quality variations due to difference in polarity, resulting in sound with an improved signal-to-noise ratio and a well-defined sound field.
- All-Stage Fully Discrete Construction, Balanced Transmission, and Low Impedance Design
- The A-S2100 has achieved a fully discrete configuration during tone defeat by thoroughly separating the tone control circuit from the signal system. This not only increases response, but also improves slew rate and results in high range reproduction of greater vitality, richness, and smoothness. Signal transmission and amplification features fully balanced transmission for thoroughly balanced operation, even of the control system circuitry. Signal loss through transmission has been significantly reduced through the application of screw clamp connections and thick cables between the preamp and power amp units. This is vital for signal transmission between the power amp units and the power step to the speaker terminals. This improves the damping factor and improves driver capacity and damping power of the speaker, resulting in vibrant and powerful bass reproduction.
- Electronic Volume Control for Optimum Sound
- The amplifier utilizes a digital volume control, designed by New Japan Radio Co., Ltd., consisting only of ladder-type resistance to remove the impact of slew rate decline or coloring of the sound. This delivers purity in the sound and provides a fast response to large volume changes and steep transients. Moreover, the tone controls employ a triple-parallel method to minimize the detrimental impact on sound quality seen with straight-line tone controls. The bass, treble, and common circuits utilize a simple construction in which the NFB of the amp is not used and the CR elements are simply fixed in a straight line. This ensures pure sound reproduction, even when tone control is applied and improved response to audio signal transients. When tone defeat is applied, straight signal flow from only one volume circuit to a discrete configuration buffer amp is realized.
- Large Capacity Power Supply Unit Delivers Energetic, Dynamic Sound with Fast Response
- The A-S2100 employs an original EI transformer, carefully customized for optimum compatibility with the chassis. Combining four large capacity carbon sheath block capacitors delivers an energetic sound even during high volume. Moreover, since the control amp and control system are equipped with 12 shunt-type local regulators that prevent deterioration caused by currency fluctuation, a clean and stable power supply is achieved. The EI transformer is mounted on the chassis using a brass washer, restricting internal vibration that would result in noise.
- Symmetrical Design
- The amplifier's left-right symmetrical construction with the power supply at the center and the power amp blocks at the ends helps in achieving enhanced separation of the left and right channels, necessary for proper two-channel stereo reproduction and desired weight balance. Fine tuning by a center frame, which extends from the front to the back of the casing and metal legs (selectable as spike or pad) help in minimizing vibrations that might affect the overall sound quality.
- Discretely Configured Phono Amp
- The phono amp features a discretely configured MC head amp and an equalizer amp to produce high-fidelity sound with pronounced musicality when playing vinyl records with both MC and MM phono cartridges.
- Headphone Amp with Fully Discrete Configuration
- The headphone amp is also equipped with fully discrete configuration for preeminent drivability and damping properties. Also included is a trimmer that responds to various load impedances.
- Level Meters
- The center of the main unit features two level meters with needles. Each meter is illuminated softly from inside by an LED for a lamplight look. The meter indicators along with VU display can be switched to peak display and can be selected according to your preferences. The window of the meters is precision-fit to the panel - completely flat, with no gaps - for an elegant appearance.
- Elegant Design with Real Wood Panels and Brass Speaker Terminals
- The amplifier's front panel is made of metal while the sides are made of real wood. The dials and tone controls are machined aluminum knobs. The amplifier comes with screw-type brass speaker terminals for secure connection with no reduction in sound quality. These terminals are also compatible with connections using banana plugs.
- Insulators Allow Use of Spikes or Pads
- The amplifier features metal legs with insulators to minimize outside vibrations. Users can opt for point installation by using the built-in spikes or plane insulation with the supplied pads, or use these combined with an interlocking rack if desired.
- Remote Control with Simple Design and Metallic Texture
- The supplied remote control features a design complementary to the aluminum panel of the amplifier itself, with a simple, easy-to-understand button layout and metallic texture. In addition to the basic volume adjustment and input switching controls of the A-S2100, it can also be used for operation of the companion CD-S2100, which is sold separately.
UPC: 027108947761 In the Box Yamaha A-S2100 180W Integrated Stereo Amplifier (Black) Remote Control 2 x Batteries (AAA, R03, UM-4) Power Cable Limited 2-Year Warranty Table of Contents
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Technical parametersYamaha A-S2100BL Specs | | | Rated Output Power | 8 Ohms, 20 Hz to 20 kHz, 0.07% THD: 90 W + 90 W
4 Ohms, 20 Hz to 20 kHz, 0.07% THD: 150 W + 150 W | | Dynamic Power | 8 Ohms: 105 W + 105 W
6 Ohms: 135 W + 135 W
4 Ohms: 190 W + 190 W
2 Ohms: 220 W + 220 W | | Headroom | Dynamic Headroom (8 Ohms): 0.67 dB | | Power Bandwidth | Main L/R, 0.1% THD, 45 W, 8 Ohms: 10 Hz to 50 kHz | | Damping Factor | 8 Ohms, 1 kHz: 250 or higher | | Signal Voltage | Maximum Input Signal Voltage
Phono MM (1 kHz, 0.5% THD): 50 mVrms
Phono MC (1 kHz, 0.5% THD): 2.2 mVrms
CD, etc. (1 kHz, 0.5% THD): 2.80 Vrms
Bal (1 kHz, 0.5% THD, bypass): 2.80 Vrms
Bal (1 kHz, 0.5%, THD, Att. -6 dB): 5.60 Vrms | | Output Voltage | Rated Output Voltage/Output Impedance
Rec Out: 200 mVrms/1.5 kOhms
Pre Out: 1.0 Vrms/1.5 kOhms | | Frequency Response | CD, etc. (5 Hz to 100 kHz): +0/−3 dB
CD, etc. (20 Hz to 20 kHz): +0/−3 dB | | RIAA Equalization Deviation | Phono MM: ±0.5 dB
Phono MC: ±0.5 dB | | Total Harmonic Distortion (THD) + N | Phono MM to Rec Out (20 Hz to 20 kHz, 1.2 Vrms): 0.005%
Phono MC to Rec Out (20 Hz to 20 kHz, 1.2 Vrms): 0.02%
Bal to Speakers Out (20 Hz to 20 kHz, 50 W/8 Ohms): 0.025%
CD, etc. to Speakers Out (20 Hz to 20 kHz, 50 W/8 Ohms): 0.025% | | Signal to Noise Ratio | IHF-A Network
Phono MM (5 mVrms, Input shorted): 93 dB
Phono MC (500 μVrms, Input shorted): 85 dB
CD, etc. (200 mVrms, Input shorted): 103 dB | | Residual Noise | IHF-A Network: 33 μVrms | | | | Inputs | 1 x balanced XLR stereo with phase and attenuator controls
1 x stereo RCA, tuner
1 x stereo RCA, CD
1 x stereo RCA, phono with ground screw
1 x stereo RCA, line 1
1 x stereo RCA, line 2 playback
1 x stereo RCA, main
1 x 12V trigger
1 x remote
1 x 4-pin DIN, service | | Outputs | 2 x right speaker pairs (A + B)
2 x left speaker pairs (A + B)
1 x stereo RCA pre-out
1 x stereo RCA, line 2 recording
1 x remote | | | | Input Sensitivity and Impedance | CD, etc.: 200 mVrms/47 kOhms
Phono MM: 2.5 mVrms/47 kOhms
Phono MC: 100 μVrms/50 Ohms
Main In: 1.0 Vrms/47 kOhms
Bal: 200 mVrms/100 kOhms | | Headphone Jack | Rated Output Power
CD, etc. (1 kHz, 32 Ohms, 0.2% THD): 50 mW + 50 mW | | Channel Separation | CD, etc. (Input, 5.1 kOhms Terminated, 1 kHz/10 kHz): 74/54 dB or higher
Phono MM (Input shorted, 1 kHz/10 kHz, Vol.: −30 dB): 90/77 dB or higher
Phono MC (Input shorted, 1 kHz/10 kHz, Vol.: −30 dB): 66/77 dB or higher | | Tone Control | Bass
Boost/Cut (50 Hz): ±9 dB
Turnover Frequency: 350 Hz
Treble
Boost/Cut (20 kHz): ±9 dB
Turnover Frequency: 3.5 kHz | | | | Power Supply | 120 VAC, 60 Hz | | Power Consumption | 350 W | | Standby Power Consumption | 0.3 W | | Dimensions (W × H × D) | 17.1 x 6.1 x 18.25" (435 × 157 × 463 mm) | | Weight | 51.6 lb (23.4 kg) | | | | Package Weight | 55.65 lb | | Box Dimensions (LxWxH) | 22.5 x 22.0 x 9.5" |
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