This is a Fender Japan "Studio 15 (ST-15)" small guitar amplifier. Despite its compact size, it's a popular model known for its solid sound and impressive appearance. ■ Operation and Sound Quality ・ Power-on and sound output confirmed. Volume is also fine. ・ GAIN, VOLUME, and PRESENCE knobs function normally. ・ EQ section (TREBLE / MID / BASS) has issues. - It feels like the equalizers other than PRESENCE are not working. - When TREBLE is set to 0 or around 10, the volume increases. - This is likely due to the aging of the potentiometers, and it may be improved by replacing them, but this cannot be guaranteed. ■ Appearance ・ The exterior is generally very clean, with the metal parts shining and the Tolex in good condition. ・ The INPUT jack area is fixed with putty, but it is securely fixed and does not affect use. ・ Minor Tolex peeling on the right side of the back (see image). ・ Otherwise, there are no noticeable scratches or rust, and it is in good condition for its age. ■ Specifications (Reference) Output: 8W Power: AC100V 50/60Hz Controls: GAIN / VOLUME / TREBLE / MID / BASS / PRESENCE Terminals: INPUT / HEADPHONE Manufactured by: FENDER JAPAN LTD. (Manufactured by ELK) ■ Notes ・ Due to the age of the unit, please refrain from purchasing if you are looking for perfect operation. ・ We have taken photos to clearly show the condition, so please check the images carefully. ・ Please purchase only if you understand the "issues" described above.