The HT-1R is a highly popular head amplifier for home use or home recording. Head with 1W? We thought that this model has an unusual headed phone terminal as a vacuum tube amplifier. In addition, it is strictly prohibited that you can turn it on without connecting the speaker to the vacuum tube, but this model requires a headphone-emulated terminal. Can it be used as a high performance vacuum tube head phone amplifier? I tried it and it was very good. The reverb has a terreo specification, so you can use headphones for long periods of time without fatigue. Of course, you can also connect it to your speaker or connect the emulator terminal to your i-Pod power speaker. A fun vacuum tube head that is sure to have one in your room! Output: 1 Watt (RMS) Vacuum Tube: ECC83 (12AX7) x 1, ECC82(12AU7) x 1 Push Pull Power Amplifier Design 2 Channel Specifications 8 Ohms Speaker Output Terminals Speaker Emulate Output & Headphone Terminals MP3/Line Input Weight: Approx. 10.9 lbs (4 kg) Dimensions: 308(W) x 185(H) x 172(H) x 172(D) mm