Maintenance has been completed, including 13 resistors and RCA terminal replacement! A rare 100V specification this time too! DYNACO's tubular mono power amplifiers are highly popular. The sleek, straight, and energetic sound that comes out of the small body is attractive. Combinations with Altech and JBL are a staple, and they make jazz and rock sounds powerful and full of realism. There is dullness over time, rust, etc. (Oikawa Tetsuji)
Maintenance information: 2026.1.19 Maintained (2 input RCA terminals replaced and changed to 100V specifications, soldering inspection and board correction were performed, a complete set of output tube pair tubes and 1 6AN8 vacuum tube was replaced, 13 carbon resistors and 8 metal oxide film resistors were replaced, bias volume and MT tube sockets were cleaned, and the final operation confirmation including checking the characteristics of an 8Ω load of 56 to 60 W at 100V was completed)
Accessories: copy of instruction manual
Main specifications: tubular mono power amplifier using vacuum tube 6550/5AR4/6AN8A output 60W/140W W229 × H190 × D229 mm 11.5 kg