Acus One ForStrings 5 Ferdi — Compact 70W Small-Band Amplifier

Overview

The Acus One ForStrings 5 Ferdi is a powerful yet compact acoustic amplifier tailored for solo players, duos, or smaller performance settings. With 70 watts of output, versatile channel configuration, and studio-level features in a lightweight design, it offers an ideal balance between portability and professional tone.

Key Features & Benefits

• 70W Output in a Compact Form
  A solid 70-watt bi-amped setup delivers plenty of headroom and articulate tone without overwhelming small stages or rehearsal spaces.

• Three Independent Channels + AUX Input
  Each of the three main channels includes gain, 3-band EQ, effect send, and volume control. An AUX/TRRS input (with Bluetooth support) gives you flexibility for backing tracks, audio devices, or external gear.

• Channel 1 Advanced Controls
  Channel 1 offers extra tone-shaping tools: a compressor (with threshold/ratio control) and a character switch to select among Flat, Bass, or Jazz tonal profiles — perfect for adapting to different instrument voices.

• Professional Connectivity
  XLR direct output for FOH/mixing console feed, footswitch jack for remote control, and TRRS audio I/O for integrated media playback or link-through.

Specifications & Build Details

• Max Power: 70 W

• Channels: 3 main + 1 AUX/Bluetooth

• Speaker Setup: 5″ woofer + 1″ dome tweeter

• Frequency Response: 50 Hz – 20 kHz

• Max SPL: ~106 dB

• System Format: 2-way, bi-amp crossover

• Cabinet: Birch plywood (Cherrywood or Blackwood finish)

• Dimensions: ~12.0" (H) × 9.96" (W) × 11.02" (D)

• Weight: ~16.31 lb

• Power Supply: External 24V DC adapter (included)

• Extras: Bluetooth receiver, TRRS audio in/out, Footswitch support

Design & Build Qualities

Crafted with a warm wood finish and sturdy plywood construction, the One ForStrings 5 Ferdi looks as good as it sounds. Its layout is intuitive for live use, while the component choices emphasize transparency and durability. Despite its compact size, it carries the refined tonal character you’d expect from Acus’s “Ferdi” series.

Free standard shipping within the Continental U.S. Delivery typically takes 5-8 business days. Express Shipping is available for an additional charge.

Returns:

Web orders- returns accepted within 5 days of delivery for new products and a refund is issued minus the cost of return shipping or a customer may ship back at own expense for a full refund.

In-Person purchases- returns are accepted within 5 days of purchase for new products.

Show Returns- For purchases made at shows, expo's, or meets, the return period for new items expires at the conclusion of the show's sheduled hours and dates.

Used and demo items are sold as described and may not be returned unless they arrive materially different than described. In-person purchases of used items are sold As-Is.

All returns must be in original packaging and in original, unused condition. Damages and signs of use will be assessed and charged against a refund if found.

Shipping damage- If products are damaged during shipping, it must be reported to us within 24 hours of receipt. All packaging must be retained until a damage claim is complete.