- Stock: 10
- Model: 32809261720
- Weight: 100.00kg
- Dimensions: 80.00cm x 70.00cm x 60.00cm
- SKU: 32809261720
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.
Product Description:
Fully exploit the advantages of triode 211, such as its gorgeous treble, mellow and full, cleaver and natural.
With 28 years of experience producing 845, 805 high tensions amplifiers and 6 years of developing power amplifiers like 212, FU80, GU-81 amps, we apply Parallel Single ended circuitry, simple but very efficient and effective circuitry, accurate output transformers, sufficient and stable mains transformers and Jensen capacitors to develop the MC211-AS power amps with superbly wide frequency range of 15Hz~36Hz. The mid-frequency is deep and wide, the sound source is transparent with clear orientation. Bass is deep, thick and firm. The dynamics are elastic and freely handled. The sound is melodious and clear in its note and makes you fell that the singer in a concert is just in front of you. You won’t get tired of its sound even after a long time listening and you can get full satisfaction from these amps.
It is recommended that the amps can be a good match for HI-FI speakers with 100~400W.
Specification:
Output power: 50W
Input impedance: 220K
Output impedance: 4Ω, 8Ω
Input voltage: 1200mv
Frequency range: 15Hz~36KHz ±1dB
Signal to noise ratio: 90dB
Power consumption: 360W
Balance input: 1 pair
Unbalance input: 1 pair
Outputs: 2 pairs
Tubes: 211*4, (Mingda Exclusive) 6SN7*2
Net size: W*D*H=39*55*43 cm
Net weight: 48KG*2
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 |
|
K-001 |
|
QUEENWAY CayinA-845 Vacuum Tube Integrated Amplifier / Pure power AMP NFB-3dB / NFB 0dB model BIAS ADJUSTMENT HUM BALANCE |
24W+24W |
10HZ-60KHZ |
90dB |
3566$ |
K-001 |
|
K-002 |
|
QUEENWAY CayinA-300PMK2 vacuum Tube amp 300Bx4 Integrated Power amplifier BIAS ADJ HUM BALANCE 20W*2 Pure Power Amplifier |
20W+20W |
7Hz~50kHz |
91dB |
1750$ |
K-002 |
|
K-003 |
|
QUEENWAY CayinA-300BMK vacuum Tube amplifier Tube 300Bx2 single-ended Class A power amplifier PRE-in Mono amplifier 8W*2 |
8W+8W |
10Hz~32kHz |
86dB |
1780$ |
K-003 |
|
K-004 |
|
Meixing mingda MC3008-AB SE Single-end Class A Vacuum Tube integrated AMP PSVANE 300B Push 805ASE Class A power amp 40W*2 |
40W * 2 |
18Hz~30KHz |
91dB |
1980$ |
K-004 |
|
K-005 |
|
Meixing mingda MC3008-A Split type Mono vacuum tube amplifier 300B Push 805ASE Class A power amplifier 40W 110V/220V(pair) |
40W*1 |
17Hz~30KHz |
≥91dB |
2850$ |
K-005 |
|
K-006 |
|
Meixing Mingda MC300845-AB Mono Vacuum Tube Amplifier 300B Push 845 Class AB1 Power Amplifier 100W 110V/220V (pair) |
100W*1 |
10Hz~65KHz |
≥90dB |
9500$ |
K-006 |
|
K-007 |
|
MEIXING MINGDA MC300-ASE Vacuum Tube integrated Amplifier Full music 300B*2 single-ended Class A power AMP 8W*2 110V/220V |
8W*2 |
18Hz~30KHz |
≥93dB |
1799$ |
K-007 |
|
K-008 |
|
Meixing mingda MC805-A Split type Mono vacuum tube amplifier 300B Push 805 Class A power amplifier 40W*1 110V/220V(pair) |
40W*1 |
15Hz~25KHz |
≥89dB |
2255$ |
K-008 |
|
K-009 |
|
Line Tube Magnetic Amplifier LM-210IA Integrated Amplifier 300B*2 Class A Single-ended Tube Amplifier 8W*2 |
24W |
10Hz~50KHz |
87dB |
2180$ |
K-009 |
|
K-010 |
|
Meixing Mingda MC3008-ABSE/MC3008-A05 Vacuum Tube integrated Amplifier 300B push 805 single-ended Class A 40W*2 110V/220V |
40W×2 |
15Hz~30kHz |
≥86dB |
1860-2499$ |
K-010 |
|
K-011 |
|
Line Tube Magnetic Amplifier LM-508IA Integrated/power amplifier 300B push 805 tube Class A 48W*2 |
48W*2 |
20Hz~31KHz |
87dB |
2500$ |
K-011 |
|
K-012 |
|
Meixing mingda MC300-C Mono Vacuum Tube Amplifier 6SN7*2 Push Full Music 300B*2 Class AB1 Power Amplifier 25W*1 110V/220V |
25W*1 |
18Hz~30KHz |
≥90dB |
2850$ |
K-012 |
|
K-013 |
|
3PCS/Set YAQIN MS-845 Pre-amplifier+Mono Vacuum Tube Amplifier SRPP Circuit 845 Single-ended Class A Power Amp 110V/220V |
25W+25W |
10Hz-40kHz |
≥86dB |
2199$ |
K-013 |
|
K-014 |
|
MEIXING MINGDA MC845-C12 Integrated Vacuum Tube Amplifier 300B Push 845 Single-ended Class A Amplifier 2*25W 110~220V |
25W + 25W |
15Hz ~ 25KHz |
≥88dB |
2560$ |
K-014 |
|
K-015 |
|
Meixing Mingda MD3008 Split type Mono Vacuum Tube Amplifier 2A3 Push 805BSE Class A Power Amplifier 40W*1 110V/220V(pair) |
40W*1 |
18Hz~30KHz |
≥91dB |
3345$ |
K-015 |
|
K-016 |
|
2PCS/Set YAQIN MS-845 Mono Vacuum Tube Amplifier Single-ended Class A Power Amplifier 110V/220V SRPP Circuit 25W*2 (pair) |
25W+25W |
10Hz-40kHz |
≥86dB |
1625$ |
K-016 |
|
K-017 |
|
YAQIN MS-650B Integrated Vacuum Tube Amplifier SRPP Circuit 845x2 Single-ended Class A Power Amplifier 2x15W 110V/220V |
15W + 15W |
10Hz ~ 30KHz |
≥77dB |
1450$ |
K-017 |
|
K-018 |
|
Line Tube Magnetic Amplifier LM-518IA Integrated Amplifier 845*2 Class A Single-ended Tube Amplifier 24W*2 |
22W*2 |
10Hz~50KHz |
87dB |
1999$ |
K-018 |
|
K-019 |
|
Line Tube Magnetic Amplifier LM-219IA Integrated/Power Amplifier 300B*2 845*2 Class A power amplifier |
24W*2 |
15Hz~35KHz |
87dB |
3699-3999$ |
K-019 |
|
K-020 |
|
YAQIN MC-550C New Version Vacuum Tube Amplifier SRPP Circuit 300B*4 Class AB1 Power Amplifier 2x18W 110V/220V |
18W + 18W |
5Hz ~ 70KHz |
≥82dB |
1550$ |
K-020 |
|
K-021 |
|
MUZISHARE X-300B vacuum tube Integrated amplifier Double vacuum tube rectification Single-end pure CLASS A 8Wx2 HIFI AMP |
8W+8W |
10HZ~50KHZ |
89db |
2026$ |
K-021 |
|
K-022 |
|
Meixing mingda MC845-C Split type Mono Vacuum Tube Amplifier 300B Push 845 Class A Power Amplifier 20W*1 110V/220V(pair) |
20W*1 |
20Hz~30KHz |
≥89dB |
2888$ |
K-022 |
|
K-023 |
|
YAQIN MC-300C Integrated Vacuum Tube Amplifier class A single-ended amplifier 300Bx2 8.5Wx2 Earphone amplifie 110V/220V |
8.5W + 8.5W |
5Hz ~ 40KHz |
≥84dB |
899$ |
K-023 |
|
K-024 |
|
Meixing mingda MC300845-AB Split type Mono Vacuum Tube Amplifier 300B Push 845 Class AB1 Power AMP 100W 110V/220V(pair) |
100W*1 |
10Hz~65KHz |
≥88dB |
9500$ |
K-024 |
|
K-025 |
|
YAQIN MS-500B Integrated Amplifier ClassA Single-ended Vacuum Tube HiFi Integrated Amp 300B6/N8Px2 12AU7x2 5Z3Px1 110-240V |
8.5W + 8.5W |
5Hz-40KHz |
≥84db |
1225$ |
K-025 |
|
K-026 |
|
Line Tube Magnetic Amplifier LM-513PA Mono Tube Power Amplifier 300B*2 845*4 Class AB 160W*2 one Pair 220V |
160W (MAX) |
15 hz ~ 35 kHZ |
87 db |
11750$ |
K-026 |
|
K-027 |
|
YAQIN MS-650B Integrated Vacuum Tube Amplifier SRPP Circuit 845x2 Single-ended Class A Power Amplifier 2x15W 110V/220V |
15W + 15W |
10Hz ~ 30KHz |
≥77dB |
1450$ |
K-027 |
|
K-028 |
|
Line Tube Magnetic Amplifier LM-503PA monoblock Amplifier 300B*2 Class A Single-ended Tube Amplifier 24W*2 |
24W |
15Hz~35KHz |
87dB |
5500$ |
K-028 |
|
K-029 |
|
Line Tube Magnetic Amplifier LM-217IA Integrated 300B*2 Single end Tube Amplifier 8W*2 |
8W+8W |
10Hz～50kHz |
87dB |
1350$ |
K-029 |
