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.

MEIXING MINGDA MC300-PSE Flagship Vacuum Tube PRE amp Preamp Premplifier Full music 300BN*4 XLR input output power Amplifier

Parameters

Gain 14dB

Frequency response 5Hz~150KHz (+0dB -1.0dB)

THD le0.1%

SNR ge94dB

Input sensitivity 1000m

XLR Input impedance 2.5KOmega

RCA Input impedance 100KOmega

Output impedance 600Omega+600Omega

RCA Inputs 4 Groups

XLR Inputs 1 Groups

RCA Outputs 2 Groups

XLR Outputs 1 Groups

Tube Full music 300BNtimes4 customized 6SN7times4 PSVANE copy WE274Btimes2

Volume 560mmtimes420mmtimes230mm (WtimesHtimesD)

Power supply 110V/220V

Power consumption 150W

N.W. 30Kg

Vacuum tube amps the use of attention:

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