*There is no problem with operation, but since the AC adapter is out of stock (sold separately), it is inexpensive and currently sold. Digital control line amplifiers. How about desktop audio etc. (Tetsuji Oikawa)
Maintenance information: 2023.2.26 operation confirmed
Accessories: instruction manual, original box, rubber feet
Main specifications: W66 x H27 x D83 mm 140 g
※ It will be passed as it is inexpensive. North Flat Japan FX-AUDIO brand vacuum tube line preamp It is a high-quality sound quality finish that has evolved from the previous model TUBE-01 by strengthening parts and circuits such as the gain setting switch. (Kimiya Miura)
Maintenance Information: 2021.3.17 Operation confirmed
Accessories: AC adapter, original box
Main specifications: Frequency characteristics 20Hz ~ 35kHz W95 × H60 × D99.5mm (*not including protrusions) Main weight 305g
FM/AM tuner preamp combines a quartz synthesizer FM/AM tuner, microcomputer audio timer, and preamp together. Details such as the audio timer section are unconfirmed. The appearance has a feeling of use such as dullness small scratches. Serial AA9KO9E309 (Takahashi Declaration)
Maintenance information: 2021.6.11 working confirmed
Accessories: none
Main specifications: Size W430 × D310 × H76 Weight 4.4 Kg
It is a preamplifier with a reverb function and a mixing amplifier. You can mix with other sources using a wired microphone, or mix two microphones at the same time using an FM wireless microphone. There are small scratches and dullness on the whole appearance (Ryo Mizusaki)
Maintenance information: 2022.9.1 Operation confirmed (line, phono sound output OK)
Accessories: none
Main specifications: W270 × H70 × D248 mm Weight 2.7 kg