NAT audio - Innovative Audio Manufacture

Switch to desktop

Magma - Limited Edition

Single Ended Mono Block Power Amplifier

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

Magma was decided like the best amplifier on Moscow High End Show by the side of independent jury.



Technical Specification
Name Value
Type Single Ended Class "A"
Power Output 160 Watts @ 4 & 8 ohms; 1 kHz
Frequency Response 10 Hz to 100 kHz; -3dB
Input impedance 100 kohms
Input Sensitivity 1.5 V RMS for full power output
Gain 27.50 dB
Rise Time 5 microseconds
Noise 105 dB below rated output
Phase status Non inverting ( 0o )
Tube Complement 1x 6N1P-EV, 1 x 6N30P-DR , 1 x 450 TH
Power Requirement 110 VAC or 220 VAC @ 50 to 60 Hz, 450 VA
Dimensions 11.8" (300 mm) wide ´ 25.2" (640 mm) deep ´ 14.2" (360 mm) high
NET Weight approx. 88 lbs (40 kg) unpacked / per piece
TOTAL Weight approx. 110 lbs (50 kg) packed / per piece




Design Features

- Single Ended pure class A mono block power amplifier
- Eimac power industrial type direct heated triode - 450TH (N.O.S.)
- DC coupled all tube circuit (only output transformer without capacitors)
- CE comfortable
- 160 W of pure class A @4ohms or @8ohms
- zero feedback or low global feedback configuration with damping factor of 20
- high capacitance in power supply resulting to over 500joules of  energy storage
- custom designed power transformer of 1000W encapsulated-low density
- custom designed output transformer of 1000W encapsulated- last generation
- double stabilisation of high voltage for driver tubes
- 6N1P-EV & 6N30P-DR long life military grade tubes for driver purposes
- full automatic bias with automatic-adjust (no any adjustment)
- variable bias (two mode with 40W or 160W of output power)
- balanced DC power to supply filament of output tube
- balanced regulated DC power to supply filament for driver tubes
- WBT output connectors
- input  wired  with pure 6N silver (99,9999% of silver purity)
- all aluminum modulated chassis with double 25mm thick front panel


Specifications are subject of change without notice

Copyright © Nat Audio, Serbia | Developed by studiopetrov.com

Top Desktop version