SANSUI AU-555 Stereo Amplifier Schematic

( Brand: Sansui ), ( Model: AU-555 ), ( Type: Power Amplifier ), ( Country/region Of Manufacture: Japan )

Review SANSUI Rare Vintage Stereo Amplifier Original Packaging Tested Schematic

The AU-555 Sansui Stereo Amplifier is a vintage gem that harks back to the golden age of audio technology. This amplifier, with its schematic, is a testament to Sansui's commitment to quality and innovation. The AU-555 boasts a powerful output of 55 watts per channel (into 8 ohms), ensuring clear and dynamic sound even at high volumes.

The amplifier's design is a blend of form and function. The silver-tinted front panel, adorned with knobs and switches, gives it a retro look that is both elegant and functional. The control layout is intuitive, with separate volume knobs for the left and right channels, a bass and treble control for adjusting the frequency response, and a balance control to ensure stereo image accuracy.

The AU-555 Sansui Stereo Amplifier employs a Class AB output stage, which provides a good balance between power and efficiency. This design ensures a wide bandwidth, minimal distortion, and a rich, detailed sound. The amplifier's input stage uses high-quality JFETs for low noise and high input impedance.

The schematic for the AU-555 Sansui Stereo Amplifier is a detailed blueprint of its internal workings. It reveals the intricate network of interconnected components, from the input transformer and capacitor filter to the output transistors and power supply. Studying this schematic can provide valuable insights into the amplifier's design philosophy and help in troubleshooting or modifying the amplifier for specific needs.

In conclusion, the AU-555 Sansui Stereo Amplifier is more than just a piece of audio equipment. It's a bridge to the past, a testament to the craftsmanship of a bygone era, and a tool for those who appreciate the art and science of audio. Its schematic is a treasure trove of information for audio enthusiasts and hobbyists alike.

1. Heritage and reputation: Sansui is a well-known and respected brand in the audio industry, known for producing high-quality stereo equipment. The AU-555 is a classic model that has gained a cult following among audiophiles.

2. Vintage appeal: The AU-555 has a retro, vintage look that can add a unique touch to any home audio setup. Its classic design and construction can also be a talking point among guests.

3. Tube-driven sound: The AU-555 is a tube-driven amplifier, which can produce a warm, rich, and detailed sound that is often preferred by audiophiles over solid-state amplifiers.

4. High-power output: The AU-555 has a power output of 55 watts per channel, which is sufficient for most home audio applications.

1. Maintenance requirements: Tube-driven amplifiers require regular maintenance to ensure that the tubes are functioning properly. This can include regular cleaning, replacement, and alignment of the tubes.

2. Limited compatibility: The AU-555 may not be compatible with all modern audio sources, such as digital music players and streaming services. It may require additional equipment to connect to these sources.

3. Limited features: The AU-555 is a basic stereo amplifier that lacks some of the features found in modern amplifiers, such as Bluetooth connectivity, built-in equalizers, and preset modes.

4. Cost: The AU-555 can be more expensive than modern solid-state amplifiers with similar power output and features. This can be due to the cost of the tubes, maintenance requirements, and the fact that it is a collectible item.

The AU-555 Sansui Stereo Amplifier is a classic, tube-driven amplifier that offers a warm and detailed sound, as well as a retro aesthetic. It is a great choice for audiophiles who value the sound quality of tube-driven amplifiers and are willing to put in the maintenance required to keep the tubes functioning properly. However, it may not be the best choice for those who require more modern features or want a more affordable option. Ultimately, the decision to buy the AU-555 Sansui Stereo Amplifier depends on your personal preferences, budget, and audio requirements.

If you are a serious audiophile who values the sound quality of tube-driven amplifiers and are willing to put in the maintenance required to keep the tubes functioning properly, the AU-555 Sansui Stereo Amplifier is a great choice. However, if you require more modern features or want a more affordable option, you may want to consider a modern solid-state amplifier with similar power output and features. It is always recommended to do your research and listen to the amplifier in person before making a purchase.

Details:

5db high filter: 20khz-10db low 30hz-12db muting - 20db 20hz 2000 0hz transistor 2sa561x2, 2sc281x2, 2sc369x2 2sc646x4, 2sc733x2, 2sc734x4 2sc458lgx2, 2sc458lx4 a total of 22 stones diode 10d-1x4, in60x2 six thermostat ds410x4 The loudness control, a tapes monitor, headphone jack, muting circuit which can carry out play monitor of recorded source while recording, etc.

Please see photos for details. The dumping factor carries switch point changed to two steps, high 45 and low 12, so that property of any speaker systems may be suited. 5mv 200kohm mic: frequency characteristic 20hz - 80000hz, 1db by normal output a hum and noise UHF closed circuit: 100db input sensitivity impedance 1v 100kohm dumping factor high:45 low:12 load 4ohm-16ohm voltage maximum voltage : 3v output-power 150ohms Thad 0.

5 db tape head 19cm sec. 8 power band width UHF 20hz - 30000hz distortion. 9kg the integrated amplifier which repeated not only a sound circuit design but audition testing, and was investigated developed.

Two speaker outputs, a and b, are carried it can reproduce independently or simultaneous. Shipping: I ship everyday via USPS. 5db control bass: 20hz, 16db treble: 20khz, 13db loudness volume 30db: 50hz, 8db 10khz, NF type tone control by a low noise silicon transistor is used for middle amplifier part.

The power transformer which demonstrated technology of Sansui to at full, and was specially designed for transistor amplifier is adopted. The frequency characteristic, distortion, Andes n are improved with constituting all amplifying circuits from NF amplifier. Are carried. Comes in original packaging with schematic, and service manual.

The pure electronic formula PCs protection circuitry original with an Sansui is adopted so that a power transistor may not be damaged, even if it makes output-terminal short-circuit accidentally.: 40db mic:32. Closed circuit: 75db aux1, 2 open: 80db input sensitivity impedance phono 1:2mv 47 ohm phono 2:2mv 100kohm tape head 19cm sec. Moreover, loud sound, the bass, and also right-and-left channel carry tone circuitry which can be adjusted independently.

Form solid-state integrated amplifier output power music UHF: 60w 1db 4ohm 50w 8ohm effective 25 25w 20 20w Thad cross modulation distortion 60hz:7000hz 4:1. Power cord has some white residue from the Styrofoam. Furthermore, it is a double security unit which certainly secures safeness combining an immediate judgment fuse in power transistor. 2sf-656x1 power source ac100v, 117v, 220v and 240v, 50hz 60hz consumption 120w maxima dimensions width 382x height 111x depth of 267mm weight 7.

5mv 10 ohm aux1:200mv 100kohm aux2:140mv tape monitor: 150mv sound-recording output phono 1, 2:37. Condition: item is in excellent working condition.

It is designed so that a pre amplifier and main amplifier can use separately.

part #: au555 prices

• $399.99-$598.00

specifications cassettevintagee:

• brand: Sansui
• model: Au-555
• type: Power Amplifier
• country/region of manufacture: Japan

General cassettevintagee:

• in stock: Yes
• consumer electronics > vintage electronics audio video consumer electronics > vintage cassette decks

Seller cassettevintagee:

• zipcode: 76710
• city: Waco, Texas

Ratings:

1. Quick response and fast payment. Perfect! THANKS!! 06-15-17
2. Great seller; superb product; promptly shipped and well packed. Gets an A !! 06-15-17
3. It was great! As described, fast. Thankyou 06-12-17
4. As described w ultra fast and FREE shipping! 06-15-17
5. A Fast delivery - as described 06-13-17

Offer cassettevintagee:

• Started: June 16, 2017, 8:28 am
• bids: 0
• best offer: true
• Sold: 0
• quantity: 1

Shipping cassettevintagee:

• cost: $60.0
• handling: 1 days
• type: Flat

Returns cassettevintagee:

• policy: returns accepted
• time: 30 Days
• type: Money Back
• paid by: Buyer

Payments cassettevintagee:

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