Maintained by TEAC in December 2025! AX-501-SP is a special packaged version model compatible with AX-501 banana plugs. A premain amplifier with a fully balanced configuration and a high-output Class-D amplifier, and equipped with an XLR balanced input. With fully balanced transmission and ABLETEC Class D amplifiers, you can enjoy clear and supple sound quality. The mechanical design with an eye-catching classical analog meter is also excellent. Small scratches and dullness can be seen. Serial 0160391 (Yonejima Satoshi)
Maintenance information: 2026.2.2 operation confirmed. 2025.12.27 Maintained by the manufacturer (meter ASSY has been replaced. Other inspections, operation tests for each part)
Accessories: instruction manual, power cord, remote control, original box
Main specifications: maximum output 88W+88W (4Ω, 1kHz, JEITA) 55W+55W (8Ω, 1kHz, JEITA) rated output 70W+70W (4Ω, 1kHz, JEITA) 45W+45W (8Ω, 1kHz, JEITA) W290 × H81.2 × D264 mm weight 4.0 kg