ACUS ONEFORSTRINGS 4Ferdi – Compact, Powerful & Designed for the Modern Musician

If you’re searching for a compact yet powerful acoustic amp that delivers crystal-clear sound with stunning portability, the ACUS ONEFORSTRINGS 4Ferdi is an absolute game-changer. This little powerhouse is lightweight, beautifully designed, and perfectly tailored for acoustic guitarists and singer-songwriters who want exceptional tone and modern connectivity in a highly portable format.

At just 5.29 lbs, this amp punches well above its weight. It delivers 40 watts of pristine acoustic sound when plugged in, or 15 watts when running off a USB-C power bank—making it an ideal companion for buskers, home recording artists, and live performers alike. The two-channel setup gives you one mic and one line input, each with independent volume control, a 2-band EQ, and a built-in effect to fine-tune your sound.

What really makes the 4Ferdi special is its modern connectivity. The built-in Bluetooth audio input allows you to stream backing tracks wirelessly, while the TRRS audio in/out makes live streaming and home recording effortless—whether you’re playing solo, collaborating remotely, or recording quick ideas on the fly.

Key Features:

• Powerful & Portable – 40W output (mains) / 15W (USB-C power bank)
• Premium Acoustic Tone – Two-way bi-amp system with a 4” woofer & 0.7” dome tweeter
• Versatile Inputs – 2 channels (Mic + Line) with independent volume & EQ controls
• Studio-Ready Connectivity – TRRS in/out for live streaming & home recording
• Bluetooth Audio Input – Easily stream backing tracks
• Sleek & Durable – Handcrafted birch plywood construction in Cherry or Black finish

Specifications:

• Frequency Response: 70Hz–20kHz
• Sensitivity: 82dB
• Max SPL: 96dB
• Size: 10.00" (H) x 6.02" (W) x 4.84" (D)
• Weight: 5.29 lbs
• Power System: External 24V DC power adapter (included) or 5V USB-C power bank

Whether you’re gigging, recording, streaming, or just playing at home, the ACUS ONEFORSTRINGS 4Ferdi delivers professional sound quality in a beautifully crafted, ultra-portable package. You won’t believe how big this amp sounds for its size!