TZT Shuguang Audio SG-845-7B Stereo Tube Amplifier Amp With Bluetooth Rated 21W+21W High-Fidelity | Электроника

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  • TZT Shuguang Audio SG-845-7B Stereo Tube Amplifier Amp With Bluetooth Rated 21W+21W High-Fidelity | Электроника - Фото №1
  • TZT Shuguang Audio SG-845-7B Stereo Tube Amplifier Amp With Bluetooth Rated 21W+21W High-Fidelity | Электроника - Фото №1
  • TZT Shuguang Audio SG-845-7B Stereo Tube Amplifier Amp With Bluetooth Rated 21W+21W High-Fidelity | Электроника - Фото №1
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    Aug-18-2025 121738.63 руб. 124173.76 руб. 122955.5 руб.
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    TZT Shuguang Audio SG-845-7B Stereo Tube Amplifier Amp With Bluetooth Rated 21W+21W High-Fidelity | Электроника

    Описание товара

    TZT Shuguang Audio SG-845-7B Stereo Tube Amplifier Tube Amp With Bluetooth Rated 21W+21W High-Fidelity

    Description:

    This
    is a high-level tube amp, because 300B tube has high frequency and fine
    mid-frequency transparency, and has the reputation of tube queen in the
    fever circle. 845 tube is one of the most musical and powerful
    electronic tubes. Its high, medium and low frequency bands are more
    pure, transparent and airy. The combination of 300B and 845 tubes forms a
    single-ended pure Class A tube. It can give full play to the
    performance of the 845.

    Sound quality: This tube amplifier has
    been sold for many years and has been upgraded and revised seven times.
    The appearance is gorgeous and noble, the circuit is further optimized,
    and the core technology to improve the sound quality is mastered,
    especially transformer driving method, which subverts the general
    resistance-capacitance driving tube amp in the market. Both the low
    frequency and the sound field are as good as possible, the sound is warm
    and full, and the tone is gorgeous, noble and brilliant.

    Power:
    The power of single-ended amplifiers on the market is insufficient, and
    the music is soft and weak. The general way to increase the power is
    usually a push-pull circuit, but the crossover distortion of the
    push-pull machine directly affects the sound quality. In order to solve
    this problem, our machine uses a single-ended Class A power amplifier
    circuit to ensure sound quality, and improves power in the following
    three aspects: 1. Adopt three-stage tube continuous push and transformer
    push. 2. Increase the number of power transformers and separate
    independent transformers for high-voltage and low-voltage power supply
    to ensure high-voltage and safety. 3. The selected high-power 845 tube
    ensures high-power output, so it can push almost all home speakers.
    Driving floor speakers will also make the music very atmospheric, rich
    and full of surging, with strong and solid bass, mellow mid-range, and
    open high-frequency.

    Materials: 1. In terms of parameter quality,
    carefully select electronic tubes to ensure the perfect combination of
    tubes and the machine. And the tubes used are all newly produced new
    tubes, which is convenient for upgrading the tubes in the future. 2.
    High-quality transformers, the output transformer uses the new Japan Z11
    film, and the new Japan copper wire. A total of eight transformers are
    used. 3. The number of other components is large, the materials used are
    sufficient, and the whole machine has used up 300 electronic
    components.

    Features:
    - Use seventh-generation technology to improve the ideal sound quality
    - Focus on sound quality research and pursue excellence
    -
    Using transformer drive technology, wide frequency band, good high and
    low frequency extensibility, and great dynamics. The sound field is
    wider, deeper, bigger and full of liveness
    - Self-made single-ended
    Class A circuit, with less distortion, clearer sound, calmer and less
    rigid, rich details, and strong sense of presence
    - Soft-start technology, non-contact NTC soft-start boot, clean bottom noise, quiet background, and protect the life of tubes
    -
    Insist on power supply is the soul of sound quality. Use high and low
    voltage independent transformers to supply power to ensure high voltage,
    high power, transparent and full sound, high thrust and strong sense of
    surging
    - Eight transformers are more powerful. It adopts
    low-voltage transformer, high-voltage transformer, left-channel output
    transformer, right-channel output transformer, right-channel drive
    transformer, left-channel drive transformer, high-voltage choke
    transformer, and soft-start transformer
    - Adopt newly produced high-end electron tubes
    - There are many parts, the whole machine with about 300 electronic components
    - Silver-plated wire inside the machine, the sound is bright, sweet and delicate
    - Military grade resistance, extremely low temperature drift coefficient
    -
    Current meter made in Taiwan. It is not a simple VU meter that plays a
    beautiful role, but monitors the working status of tubes in a timely
    manner, to ensure that the tube is working in an ideal state, and to
    ensure high-fidelity sound quality
    - Imported gold-plated terminals make the sound better
    -
    Focus on details, create professional tube amp. Thick mesh cover, care
    for safety. Integrated welding of scaffolding and circuit board, taking
    into account sound quality and power
    - Specially customized shock absorber feet to reduce the impact on sound quality
    - Brushed aluminum alloy panel, noble appearance
    -
    Convenient wireless Bluetooth transmission method to access audio
    source. Directly push music to the tube amp through the Bluetooth of
    lossless players, mobile phones, tablets and other devices. Not only has
    it increased the convenience of wireless input audio sources, it also
    has a fashionable gameplay experience combining traditional HIFI and
    trendy digital. For Bluetooth lossless player supporting for APTX, for
    iPhone and for iPad

    Technical Parameters:
    - Product Type: Single-ended pure class A tube power amplifier
    - Rated power: 21W+21W(max. 24W)
    - Whole machine power consumption: 340W
    - Frequency response range: 20Hz-25kHz
    - Noise voltage: <1mV
    - Signal to noise ratio: 88dB
    - Input impedance: 100KΩ
    - Input sensitivity: <1V
    - Input signal: two channels (with Bluetooth)
    - Output impedance: 4Ω, 8Ω
    - Power supply voltage: AC 110~ 220V ±10%
    - Dimensions: 485x280x295xmm (the largest)
    - Net weight of the whole machine: 38kg
    - Resistor: RJ military-grade resistor
    - Main capacitors: for American EC, Canadian EACO, etc.
    - Volume potentiometer: Japanese type 27 fully sealed potentiometer
    - Screen current monitor: Customized in Taiwan
    - Welding method: manual scaffolding and mixed welding method of PCB board
    -
    Power supply transformer (four): parameter technical confidentiality,
    epoxy resin sealing, noise reduction, shockproof, and moisture-proof
    treatment
    - Output transformer (two): 96X60 specification EI type
    Japan Z11 iron core, epoxy resin anti-vibration and moisture-proof
    treatment
    - Promote transformers (two): parameter technical confidentiality
    - Tubes: 845 series*2, 300B series*2, 6SN7 series*2
    - Case: All aluminum case

    Package Included:
    - 1 x Set of Tube Amplifier

    Note:
    -
    Items in silver shell are delivered by default. If you want an amp in
    black shell, please contact us to pay extra money when purchasing. Thank
    you!
    - It is assembled.



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