I'm organizing my equipment. I've installed a TransAcoustic system preamp on my IBANEZ AEG24-Ⅱ because the original preamp was faulty. It outputs a more powerful and louder sound than a YAMAHA TransAcoustic guitar. It's possible to have a mini-concert in a small room without a guitar amp. The neck, nut, and saddle have been adjusted. After fret leveling for the best condition, I installed a DOUBLE OS1. This will change your perception of acoustic guitars. ⭕️Search for DOUBLE S1 OS1 on Youtube. 【Preamp】 ⭕️TransAcoustic Function: The condenser microphone and piezo pickup pick up the vibrations of the guitar and strings, and the preamp applies effects. It then sends the signal to an actuator (vibrator) installed on the back of the guitar, which vibrates the body. The natural sound and the sound with effects are mixed and come out of the guitar. You can enjoy the effect sound from the soundhole without any connection. You can also connect it to a guitar amp via line out and play it as a regular electric-acoustic guitar. ⭕️Effects: You can apply mic blend, delay, chorus, and reverb all at the same time. ⭕️AUX: A function not found in other preamps. You can connect via Bluetooth and import audio from your iPhone, etc., and play along with it. ※ You can also enjoy music as a Bluetooth speaker by hanging the guitar on the wall. ⭕️The power source is a rechargeable battery, charged via a USB-C cable. 【Features】 ◯Beautiful black tiger-eye pattern on the guitar ◯Ultra-thin electric-acoustic guitar. The neck is also thin, allowing you to play it with the feel of an electric guitar. ◯Matte neck for smooth fingering ◯Good response and sharp, clear sound quality ◯Original wood grain inlay on the fingerboard 【Condition】 ◯Fret leveling, neck, nut, and saddle adjustments for a low action of approximately 2.5mm at the 12th fret, 6th string. ◯The truss rod has room to spare on both sides. ◯No fret wear, polished and shiny with steel wool. 【Specifications】 ◯Color: Beautiful black tiger-eye pattern ◯Top: Spruce solid top ◯Sides & Back: Flame maple ◯Neck: Mahogany ◯Fingerboard: Rosewood ◯Bridge: Rosewood ◯Nut width: 42mm ◯Scale: 650mm ◯Body thickness: 60mm - 70mm ◯Pegs: Replaced with new silver chromatic pegs ◯Accessories: Soundhole cover, preamp manual, and charging cable