40 Watt power amplifier (Class D) with output alternatively at 70V or 100V with 2 stereo inputs (1x3.5mm jack for line in

40 Watt power amplifier (Class D) with output alternatively at 70V or 100V with 2 stereo inputs (1x3.5mm jack for line in
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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.

 

Meixing mingda MC-211C Split type Mono or integrated vacuum tube amplifier PSVANE300B(2A3) Push PSVANE 211 Class A power amplifier 16W*1 110V/220V(pair)

PSVANE300B can be 2A3

12

Parameters

Output power 16W*1

THD le1.0%

SNR ge89dB (A weight)

Frequency response 18Hz~25KHz (plusmn1dB)

Input sensitivity 0.4V

Input jacks RCAtimes2group

Vacuum tube PSVANE 211times1 PSVANE 300B (can be 2A3)times1 12AU7times1 12AX7times1

Input impedance 100kOmega(RCA)

Output impedance 4Omega 8Omega

Power supply 110V/220V

Power consumption 190W

N.W. 24kg*2(pair)

G.W. 30kg*2(pair)

 

 

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).

 

This form is for customers to better understand our products. If you want to know more details or purchase our products, please enter the link of the products.

Number

Picture

Name

Output power

Input sensitivity

Price

Link

J-001

1

Cayin A-50T Vacuum Tube Integrated Amplifier AMP TR/UL Mode Max 38W*2 EL34EH x4

18W+18W/38W+38W

300mV

1120$

J-001

J-002

2

Line Tube Magnetic Amplifier AS128 Amplifier Mono Combined Amplifier With Integration of left and right Sound Tracks PAIR

See the details

See the details

13000$

J-002

J-003

3

MEIXING MINGDA MC34-ASE Vacuum Tube integrated Amplifier EL34*4 Class AB1 push-pull power Amplifier 40W*2 110V/220V

40Wtimes2

200mV

1300$

J-003

J-004

4

Meixing mingda MC-845C Split type Mono Vacuum Tube Amplifier 300B Push 211 Class A Power Amplifier 16W*1 110V/220V(pair)

16W*1

0.4V

2850$

J-004

J-005

5

JUNGSON V-77 Vacuum Tube Integrated amplifier CLASS AB 2x40W 6N1 EL34 Electron Tube HIFI 24bit/192kHz Decoder Coaxial AMP

2times40W

250mV

3335$

J-005

J-006

6

YAQIN MS-2A3 New Version Vacuum Tube class AB1 Power Amplifier 2A3Cx4 SRPP Circuit 2x10W 110V/220V Home Power Amplifier

10W + 10W

0.25V

815$

J-006

J-007

7

Line Tube Magnetic Amplifier LM-211IA Integrated EL34*4 Push-Pull Tube Amplifier 32W*2(Ultralinear) 15W*2(Triode)

15W+15W/ 32W+32W

200mV

780$

J-007

J-008

8

YAQIN MS-30L Integrated Vacuum Tube Amplifier SRPP Circuit EL34B*4 TR/UL Class AB1 Headphone Amplifier 2x50W 110V/220V

40W + 40W/ 25W + 25W

0.23V

550$

J-008

J-009

9

MUZISHARE X5 Integrated Vacuum Tube Amplifier EL34x4 do AB1 Push-pull Amplifier 15~35W TR~UL switch 110V/220V Good Sound

See the details

See the details

816.05$

J-009

J-010

10

YAQIN MC-5881A Integrated Vacuum Tube Amplifier 5881Ax4 Ultra-linear Power Amp 2x23W 110V/220V Vacuum Tube Headphone Amp

23W + 23W

0.25V

440$

J-010

J-011

11

YAQIN MC-10T Integrated Vacuum Tube Amplifier SRPP Circuit EL34*4 UL Class AB1 Power Amplifier 2*40W 110V/220V

40W + 40W

0.26V

515$

J-011

J-012

12

MUZISHARE X3T 5AR4*2 dual Rectifier Circuit Integrated Vacuum Tube Amplifier EL84*2 Pure Class A Single-ended Power Amp

5W + 5W

CD:650mV,AUX:650mV

530$

J-012

J-013

13

JUNGSON V-66 Vacuum Tube Integrated Amplifier Ultralinear mode ClassAB 2x35W 6SL7 6SN7 EL34 HIFI EI Type Power Transformer

2times35W

260mV

1800$

J-013

J-014

14

YAQIN MC-13S Integrated Vacuum Tube Amplifier Class AB1 Power Amplifier 6CA7T*4 SRPP Circuit 40W*2 110V/220V

40W + 40W

0.25V

565$

J-014

J-015

15

Meixing Mingda MC-211C Integrated or Mono Vacuum Tube Amp PSVANE300B/2A3 Push PSVANE 211 Class A Power Amp 110V/220V(pair)

16W*1

0.4V

2850$

J-015