The A331A from Schrödinger Audio is a High Performance,Portable Vacuum Tube Headphones Amplifier, is a bridge to enhance sound quality between the portable music device such as Smartphone and Headphones.
To know more about this product please visit:
http://www.schrodinger.hk/index.php/product/61
Schrödinger Audio is OEM & ODM Manufacturer for Portable Vacuum Tube Amplifiers.
Specifications
- Tube: Raytheon JAN6418 Mini Tubes x 2
- Frequency Response:10-33KHz
- Signal to Noise Ratio:120dB
- Output power : 250mW(32Ω)
- Total Harmonic Distortion:<0.004%
- Battery: 3.7V, 1100mAh rechargeable Lithium Battery
- Battery Charging Time: Around 3hrs
- Battery Working Hour: 10hrs (Max)
- Charging Port: Micro USB, 5V
- Input Port: 3.5mm Stereo Jack
- Output Port: 6.35mm Stereo Jack
- Headphone Impedance: Suitable for 8-300Ω Headphones
- Colour : Black (Other Color orders are also welcome)
- Dimensions : 110×70×20mm
- Net Weight: 0.2kg