✓ACOUSTIC-SPECIFIC FOR OUTDOOR & LIVE. AC-40S is voiced specifically for acoustic guitars with 40W stereo sound driving two 6.5 inch speakers rather than a mono speaker — more spacious, true-to-life sound — crisp highs, warm mids, and tight lows. For bedroom, home practice, indoor video recording, and small gatherings, consider AC-20S.
✓GUITAR CHANNEL, 3-BAND EQ & 3 EFFECTS: Guitar Channel offers full tone-shaping: 3-band EQ (Bass, Mid, Treble) plus Chorus, Delay, and Reverb, solo or stacked. Easily cut boominess, add midrange punch for strumming, or brighten highs for fingerpicking. No extra pedals or mixer.
✓MIC CHANNEL: Independent Bass, Treble, and Reverb controls shape vocals for outdoor use—cut wind rumble, boost treble through street noise, add fullness without washout. Optimized for standard dynamic mics; no phantom power, so condenser mics aren't supported.
✓EASY TO MASTER: Bluetooth 5.0, AUX IN, and USB-C OTG for wireless streaming, wired playback, and direct recording to phone or PC—no interface needed. Headphone out enables silent practice with auto speaker mute. Bluetooth and AUX can't run together; USB-C doesn't charge phones.
✓SOLID & STAGE-READY: Built-in 4400mAh battery offers up to 6 hours at moderate volume, with play-while-charging support. Standard stand mount suits street performers and outdoor singer-songwriters. At 8.6kg (18.9 lbs), it's portable and powerful, with a sturdy, compact leather-wrapped cabinet and an easy-to-master control panel—no cheap wood.
✓Compatibility: AC-40S Guitar channel is designed for electro-acoustic guitars and works with most modern active and passive pickups. However, low-output passive pickups (typically below -16dBV) may not drive the channel adequately. In this case, an external preamp is needed between the guitar and amplifier to boost the signal.