PLUSOBD Remote Car Starters For Benz C Class W204 Heat Or Cool Vehicle Before Entering Your Car In Hot Summer Or Cold Winter

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      About the products details, we carefully tell you: these specifics produced by AliExpress system, some of these aren\'t fully correct, even it is wrong. So the correct products information is derived from the detailed description. Usually the description has a few pictures and introduction. If you are in 110V area, please tell us. About the international shipping/transportation cost, it isn\'t accuracy on some countries, if it is expensive, please contact us! Sometimes we can find a cheap way, we must 100% reply to you! Please carefully check the packing/box/parcel when the your receiving the parcel.   

                                                                                  

 

 

Hello visitors and buyers,

Welcome to Queenway store!

    About the products details, there we carefully tell you: these specifics produced by AliExpress system, some of these are not correct or even wrong. So the correct products specifics is from the detailed description. Usually the description has some pictures and much words. And if you are in 110V rear. Please notice the items input voltage. As we can not mark it on few items.

    About the international shipping/transportation fee, if the shipping fee is expensive, please contact us. Sometime we can find some cheaper shipping way and we will 100% reply to you! Please carefully check the packing/box/parcel when the sender see the goods. 

 

 

                                                                                  

 

 

 

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.

 

 Cayin MT-45MK2 Tube amplifier Tube EL34x4 have all-powerful power match 90~270V

 This new rigid build  low-priced vacuum tube amplifier features huge sonic improvement from the previous MT series.  The sound of this integrated amplifier is sweet and detailed, with the dynamics and low-end authority of a much larger amplifier. The owner may adjust the bias of the power valves by using gain controls and a high precision VU meter on the front panel of the amplifier. Special handmade power transformer and output transformers give very quiet performance. With heavy duty transformer design the amplifier has sufficient power to drive most small and medium size speakers. It also features switching so audiophiles can enjoy 2 different styles of sonic performances from the same amplifier.

1. 2 x 12AX7 + 2 x 12AU7 for pre-amplifier session

2. Fully matched EL34 x 4 vacuum tubes for power output

3. Special handmade low magnetic leakage toroidal power transformer

4. Special handmade wide frequency response Ei audio transformers

5. High end Nichicon capacitors and audio choke coil

6. Silver plated high purity copper internal signal wiring

7. High quality Japan ALPS volume control

8. Ultralinear / Triode mode selection

9. All point to point wiring (hand soldering)

10. 4ohm / 8ohm / selectable output load impedance

11. Removable metallic tube protection cage included

12. Detachable power cord system (IEC)

                                                                                                                                                                                                                                                                                                        
Specifications:
Rated output power              18W+18W (RMS Triode work status)

                                              35W+35W(RMS Superlinear work status)

Frequency response             8Hz~50kHz(-3dB)

THD                                      1%(1kHz)

SNR                                      90dB

Input sensitivity                    300mV

Input impedance                  100kΩ

Output impedance               4Ω,8Ω

Tube                                    EL34×4 12AU7×2 12AX7×1

Input                                    3×RCA

Power supply                       220V±5%  50Hz

Volume                                295mm×395mm×185mm(W×D×H)

Power consumption             230W

Weight                                 16.5kg                                                                           
 
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 

Frequency response

SNR

Price

Link

Q-001

1

QUEENWAYCayinA-100TMK2 Vacuum Tube Integrated AMP TR/UL Mode Max 80Wx2 BIAS ADJ External Tube SEL 12AU7x4 6SN7x1 KT88x8

45W+45W/ 80W+80W 

8Hz~70kHz

92dB

2800$

Q-001

Q-002

2

Newest Yaqin MS-90B Vacuum Tube integrated amplifier Pure Power AMP With Bluetooth Input UL: 55W*2 TL: 28W*2 KT90-T*4

55W * 2/28W * 2

5Hz - 70KHz

≥90dB

1150$

Q-002

Q-003

3

 Newest Yaqin MC-100C Vacuum Tube integrated amplifier Pure Power AMP With Bluetooth Input UL: 55W*2 TL: 28W*2 KT88*4

55W * 2/28W * 2

5Hz - 70KHz

≥90dB

1050$

Q-003

Q-004

4

QUEENWAY CayinA-88TMK2 Monitor Version Vacuum Tube Integrated AMP TR/UL Mode Max45Wx2 BIAS ADJ External Tube SEL KT88x4

25W+25W/45W+45W

10Hz~42kHz

93dB

2150$

Q-004

Q-005

5

YAQIN MS-120 Vacuum Tube power Amplifier AMP Use Russian TUNG-SOL KT120*4 6SN7EH * 2 12AX7EH * 2 UL:80W*2 TR:48W*2

80W+80W/48W+48W

10Hz-58kHz

 ≥92dB

2700$

Q-005

Q-006

6

Meixing mingda MC88-C HIFI Vacuum Tube integrated Amplifier Push-pull amp KT88 * 4 6SN7 (Special)*2 6N9 * 2 power: 50W * 2

50W * 2

15Hz~60KHz

 89dB

1950$

Q-006

Q-007

7

QUEENWAY CayinA-88TMK2 vacuum Tube amplifier EL34 KT88 6550EH x4 class AB push-pull amplifier TR~UL switch BIAS ADJ. 35W*2

18W+18W

10Hz~40kHz

93dB

1105-1350$

Q-007

Q-008

8

Meixing mingda MC368-BSE HIFI Vacuum Tube Integrated Amplifier Amp KT90*4 6SN7 (Special) *2; 6N9 * 2 Output power: 70W * 2

70W * 2

15Hz~60KHz

89dB

1950$

Q-008

Q-009

9

 MUZISHARE X10 KT150*2 Integrated Tube Amplifier Double Vacuum Tube Rectification Single-end Class A 22W*2 power amplifier

22W+22W

10Hz~70 KHz

92db

2753$

Q-009

Q-010

10

Line Tube Magnetic Amplifier LM-216IA Integrated KT88*4 Push-Pull Tube Amplifier 38W*2

15W+15W/32W+32W

10Hz~50kHz

87dB

820$

Q-010

Q-011

11

 JUNGSON V-88 Vacuum Tube Integrated amplifier 6SL7 6SN7 KT88 HIFI AMP UL: Class A 2x45W HIFI EI Type Power Transformer

2×45W

18 Hz~38 KHz

≥95dB

2855$

Q-011

Q-012

12

QUEENWAY CayinMT-45MK2 vacuum Tube amplifier class AB1 push-pull power amplifier TR~UL switch BIAS ADJ. 35W*2 EL34 or KT88

18W+18W/35W+35W

8Hz~50kHz

90dB

820-890$

Q-012

Q-013

13

YAQIN MC-50L Integrated Vacuum Tube Amplifier SRPP Circuit KT88(6550) Ultra-linear Class AB1 Power Amp 2x50W 110V~220V

50W + 50W

6Hz ~ 50KHz

≥85dB

735$

Q-013

Q-014

14

YAQIN MS-110B Vacuum Tube Amplifier SRPP Circuit KT88-98x4 Class AB1 Amp 4~8 ohm Headphone Amplifier 2*50W 110V/220V

50W + 50W

10Hz ~ 50KHz

≥85dB

698$

Q-014

Q-015

15

MEIXING MINGDA MC90-AB mono Vacuum tube Amplifier KT90*4 Class AB1 push-pull power Amp 95W*2(TR)/150W*2(UL) 110V/220V

95W×2/150W×2

 20Hz~80kHz

≥98dB

2850$

Q-015

Q-016

16

Meixing mingda MC368-B5 (KT120 110W*2) / MC368-B150 (KT150 150W*2) Vacuum Tube integrated amplifier UL/TR output model

110W * 2/50W * 2

18Hz~55KHz

99.7dB

3250-3450$

Q-016

Q-017

17

 Line Tube Magnetic Amplifier LM-501IA Class AB1 Integrated Tube Amplifier A KT120*4 100W*2 Great power Output

100W*2

10Hz~50KHz

87dB

2355$

Q-017

Q-018

18

 Line Tube Magnetic Amplifier LM-126 Vintage Tube Amp KT66*4 Study Copy Western Electric Sound Use WE618 Transformer Input

15W + 15W

10Hz ~ 45KHz

88dB

4450$

Q-018

Q-019

19

MUZISHARE X7 Integrated Vacuum Tube Amplifier KT88x4 AB1 Push-pull Amplifier 25~45W TR~UL Switch 110V/220V MM phono

25W+25W/45W+45W

15Hz~30kHz 

92dB

1060$

Q-019