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Magma New

Single Ended Mono Block Power Amplifier

NAT produced the most powerfull single ended (with Single tube) in the world called Magma New. It is called Magma, because the color of anode so real to vulkan's magma. Read soon much more about this unigue project.

 

Technical Specification
Name Value
Type Single Ended Class "A"
Power Output 170 Watts @ 4 & 8 ohms; 1 kHz
Frequency Response 6 Hz to 80 kHz;
Input impedance 100 kohms
Input Sensitivity 2.45 V RMS for full power output
Gain 27.50 dB
Rise Time 5 microseconds
Noise 105 dB below rated output "A" weighted
Phase status Regular ( 0 )
Tube Complement 1x 6N1P-EV, 1 x GM100 (all by military standard and N.O.S.)
Power Requirement 110 VAC or 220 VAC @ 50 to 60 Hz, max. 750 VA
Dimensions 11.8" (300 mm) wide ´ 30.3" (770 mm) deep ´ 14.2" (360 mm) high
NET Weight approx. 133 lbs (60 kg) unpacked / per piece
TOTAL Weight approx. 332 lbs ( 150 kg) packed / total




Design Features

- Single Ended pure class A mono block power amplifier
- only one voltage gain stage
- power military grade type direct heated triode-GM100 (N.O.S.) - most powerfull triode globally ever produced for audio
- DC coupled circuit (only output transformer on signal path)
- CE comfortable regarding maximum DC operating voltage
- 170 W of pure class A @4ohms or @8ohms
- zero global feedback configuration
- high capacitance in power supply resulting to over 500joules of  energy storage
- custom designed silent power transformer of 2000W encapsulated-low density
- custom designed output transformer of 1000W encapsulated- last generation
- full double zero feedback stabilisation of high voltage for driver tubes
- 6N1P-EV military grade long life tube for driver purposes (N.O.S.)
- bias with fully automatic-adjust (no any adjustment)
- variable bias (two mode with 60W & 170W of output power-switch on front panel)
- fully stabilised DC power to supply filament of output tube
- balanced regulated DC power to supply filament for driver tubes
- soft start to increase reliability and to prolong life
- output  premium NEXTEGEN-WBT connectors
- all modulated chassis with laminate 20mm thick front panel


Specifications are subject of change without notice

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