Description

 

Line Magnetic LM-508IA Plus Integrated 48W+48W High Power 12AX7EH Electronic Tube Amplifier 220V

Improvements:
- In terms of selecting electronic tubes, the stable and music rich Russian 12AX7EH was used as the voltage amplifier, and the 300B was driven by 12BH7EH. The 300B and 805 adopted for PSVANE higher-order electronic tubes. In order to achieve optimal impedance matching between the driving tube 300B and the power tube 805, a direct coupling method is used to extend the high-frequency range and control the low-frequency range.
- Using for Mundorf capacitors greatly improves the density, analytical power, and transparency of sound, making the sound replay effect more realistic.
- Upgraded from a ceramic socket to a high-end socket, using high-density electric wood specially supplied by Japan. The 24K gold plated pin size is more precise, and the high-density material has stronger moisture resistance and better insulation. The 24K gold plating process has a larger metal contact area and is resistant to damage.
- The filtering capacitor adopts military grade electrolytic capacitors; The layout adopts an array design, which is more effective in expanding capacity, enhancing filtering effect, and eliminating electricity.
- The noise generated by the source while ensuring energy supply to the input port during high dynamics.
- Added [Balanced Signal Input Function].

Features:
- Black panel, elegant and luxurious.
- The rear stage adopts a high-power 805 electronic tube dedicated to audio for single ended Class A power amplification.
- External 805 current adjustment (BIASDJ.) and humming adjustment (HUMBALANCE).
- Multiple brands and models of electronic tubes can be used to listen to different phonetics.
- Made purely by hand, the whole machine is constructed and welded by hand.
- High quality coupling capacitors are used between stages.
- Adopting two high-quality wideband and high-quality EI output transformers.
- Use a specially developed circular power transformer for this machine.
- Equipped with high-voltage delayed power supply and filament preheating function, extending the lifespan of electronic tubes.
- Adopting for ALPS high-end motor potentiometer.
- Infrared function remote control.
- The input port has added a balanced signal input function.
- Five sets of input signals can be manually controlled and remotely operated through panel knobs for selection.
- Adding a switch selection for backlight can further eliminate the slight interference that may be caused by backlight operation.
- Adding a high-voltage buffer circuit effectively alleviates the high current surge during high-voltage connection.
- In terms of selecting electronic tubes, the 6SL7, which is prone to causing noise, was abandoned and replaced with the stable and musically rich Russian 12AX7EH for voltage amplification. The 300B was pushed through 12BH7EH to achieve the best impedance matching between the pushing tube 300B and the power tube 805. In order to achieve the best impedance matching between the pushing tube 300B and the power tube 805, a direct coupling method was used to reproduce the extension of the high-frequency band and the control strength, layering, and looseness of the low-frequency band.

Specification:
- Rated output power: 48W + 48W
- Harmonic distortion: 1% (1kHz)
- The whole machine frequency response: 20Hz ~ 31kHz (-1.5dB)
- Signal to noise ratio: 87dB
- Input sensitivity: Line 330mV Pre 1000mv
- Input impedance: 100kΩ
- Whole machine volume (W x D x H): 430 x 420 x 270mm
- Output impedance: 4Ω, 8Ω, 16 Ω
- Use vacuum tube: 6SL7 x 1, 6SN7 x 2, 805 x 2, 300B x 2
- Net weight: 48kg
- Power consumption of the whole machine: 400W
- Working conditions: Temperature: 0°C ~ 40°C Humidity: 20% ~ 80%
- Storage conditions: Temperature: -20°C ~ 70°C Humidity: 20% ~ 90%

Package Included:
- 1 x Power Amplifier
- 2 x Fuse
- 1 x Remote Control
- 1 x User Manual