YAQIN MC 5881A font b Integrated b font vacuum tube font b amplifier b font 5881Ax4
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YAQIN MC 5881A font b Integrated b font vacuum tube font b amplifier b font 5881Ax4
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YAQIN MC-5881A Integrated vacuum tube amplifier 5881Ax4 ultra-linear power amplifier 2x23W 110V/220V vacuum tube headphone amp

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The main factors affect the sound quality of vacuum tube amplifier

1. Single-ended and push-pull circuit

At the end of the power amplification, amplification of push-pull is easier to get high power output, because push-pull is a vacuum tube amplifier «+» signal, a vacuum tube amplifier «-» signal, and then superimposed, so large distortion. Single-ended amplifier is a vacuum tube amplifier «+, -» signal, does not need the signal superposition, therefore less distortion. The sound Single-ended than push-pull good, especially in some minor details. However, Single-ended is difficult to obtain high power output, with vacuum tubes of the same type, Single-ended can do 10W, while push-pull is easy to do 30W, Single-ended to obtain large power will have to pay more price.

2. push-pull end power amplifier of vacuum tube different connections

push-pull the end of the power amplifying vacuum tube usually have three connections: triode form, super linear form and standard form. Theoretically speaking, the triode form by minimum distortion, output power is minimum; standard form get larger distortion, power is also the maximum; between super linear form between.

3. Affect the power transformer and output transformer of sound

High quality vacuum tube amplifier inseparable quality transformers, power transformers currently technically no trouble, the output transformer is the decision of the vacuum tube amplifier sound quality is the key. Because regardless of the output transformer selection is good, how sophisticated technology, both methods exist to avoid leakage inductance and stray capacitance components, resulting phase distortion. Output transformer as inductive element, to the transmission signals of different frequencies have different inductance. Therefore, the output of the transformer will be different in different voices lead. No high-quality output transformer, other aspects of the production of better quality vacuum tube amplifier is also meaningless.

YAQIN MC-5881 Integrated vacuum tube headphone amplifier Pre-amp SRPP Post-amp 5881Ax4 do push-pull amplifier 2x23W 110V ~ 220V

1. Using the latest improved vacuum tube 5881A do power amplifier ,

2. Use the improved ultra-linear push-pull amplifier circuit,

3. Pre-amplifier uses SRPP form circuit,

5. Using top-quality output transformer,

6. Using high-quality volume potentiometer,

7. Using high-quality electronic components to get better sound,

8. With a headphone output,

9. With 110V ~ 220V selection(Set before useing).

Parameters

Output power 23W + 23W (8Ω)

THD ≤1.0% (at 12W)

SNR ≥78dB ( A weight)

Vacuum tube 5881A×4 ,6E2×2, 6N1×2

Frequency response 6Hz ~ 65KHz (-2dB)

Input sensitivity 0.25V(1kHz)

Headphone best match 32Ω

Input RCA×4

Output Impedance 4Ω 8Ω

Power supply 110V~ 220V±5% (Set before using)

Power consumption 150W

N.G. 13.5kg

W.G. 16kg

Vacuum tube amps the use of attention:

1. Disable output short circuit and output load, before you start you must first connect speakers or headphones, the best is always keep them connected,

2. Start with minimal volume,

3. The supply voltage should be stable, with the use of conditional HiFi clean power for better protection and sound,

4. When the vacuum tube amplifier operating temperature is high, pay attention to ventilation, not to touch hot tube,

5. Do not put water on a hot vacuum tubes,

5. Do not put water on a hot vacuum tubes,

6. Boot and shutdown interval of 5 minutes,

7. Do not over 6 hours of continuous work,

8.6 ohm speaker connected to the 4 ohm, 8 ohm interfaces are available,

9. vacuum tube amplifier sound 40% depending on the power amplifier tube quality, 40% depends on the quality of output transformer, 10% depends on other electronic components quality, 10% depending on the manufacturing process,

10. power supply voltage can be free custom (please consult).

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Pris:  3423.00 kr / piece
fra AliExpress