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Single Ended Mono Block Power Amplifier

| Download Single
Ended Triode Ampifier Survey (357 kB, PDF Format) written by Mr. Scot
Markwell and read his impressions about Se1. Review was published in AVguide
in June 2003. MkII version already improve quality of previous model by increasing power to 35W with special driver, super tube 6N30P-DR(military grade). Single Ended Mono Block Power Amplifier Se1 has very short signal path without passive components. It means that this circuit contains no coupling capacitors & no inter-stage transformers. Specially designed hand wounded output transformers improve frequency bandwidth, over standard construction. Frequency response of our Mono Blocks Se 1 from 9 Hz to 60 kHz is extremely linear without any subresonance region. Se1 has automatic bias circuit means current trough output tube(VT-4-C) is always the same. There is no need for any type of adjustment. Sound quality is totally independent against power supply instability, because all stages in amplifier have stabilisation. These Mono Blocks require sensitively loudspeaker (over 90dB / 2.83V / 1m @ 8 ohms), but with some of the single ended "friendly" loudspeaker Se 1 will bring you great sonic pleasure that only real single ended triode virtues can do.
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Technical
Specification
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Type |
Single Ended Class "A" |
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Power Output |
35 Watts @ 4 & 8 ohms, 1 kHz |
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Frequency Response |
9 Hz to 60 kHz @ 8 ohms taps |
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Input Impedance |
100 kohms |
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Input Sensitivity |
0.9 V RMS for full power output35 Watts Output @ 8 ohms |
| Gain | 25db(x18.5) |
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Rise Time |
6.0 microseconds |
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Noise |
99 dB below rated output |
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Tube Complement |
1 x 6N2P-EV, 1 x 6N30P-DR, 1 x VT-4-C |
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Power Requirement |
110 VAC or 220 VAC @ 50 to 60 Hz, 190 VA |
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Dimensions |
11.8" (300 mm) wide x 24" (610 mm) deep x 10.2" (260 mm) high |
| NET Weight | approx. 67.5 lbs. (30.5 kg) unpacked / per piece |
| TOTAL Weight | approx. 106 lbs. (48 kg) packed / per piece |
Design Features
Specifications
are subject of change without notice