Point to point wiring, audiophile parts, chrome/gold heavy chassis, separate power supply, excellent tube compliment, 2x12AX7's and 4xEL84's, heavy duty gold plated 5 way speaker connectors and input jacks. The fit, finish, parts quality, transformer quality and sound quality are impressive. You do not see many point to point wired tube amps at this price point. The M Star transformers are their top of line. This little amp is impressive. It is open, detailed, transparent, dynamic, extended, spacious, involving, smooth and very musical. It will need to be mated with an efficient speaker system as it is 13 Wpc, conservatively rated due to the heavy duty power supply. A sweet sounding, cool looking amp. Specifications: Output Power:13W×2 Output Impedance:4Ω,8Ω Input Voltage:200mv Output Impedance:100K Distortion Factor:≤0.8% Signal-to-Noises:89dB Power Dissipation:80W Inputs:1 Groups Outputs:1 Groups Frequency:20Hz - 55KHz±1dB Vacuum Tubes:EL84×4 12AX7×2 Dimensions:20L x 17W x 19H(cm) Gross weight: 10kg