~acus sound engineering~ At acus, all of our equipment, including amplifiers, cabinets, and PA systems, is handmade and specially designed for acoustic performances. Everything from the speakers to the internal electronics is custom made, and ACUS engineers have planned and designed everything from the internal structure to the finest specifications to ensure the optimal sound range is output for the acoustics. For over 40 years, acus has been committed to producing equipment that reproduces pure, natural sound, and has been manufacturing acoustic-specific equipment in Recanati, Italy. It has been highly praised by many musicians, especially in Europe, for its high sound quality and design. ~ONE FOR STRINGS~ The ONE FOR STRINGS series was developed to output the sound produced by all acoustic instruments with as natural a tone as possible. It delivers excellent performance, especially with acoustic and classical guitars, including full-acoustic and semi-acoustic guitars. The speakers, chassis, equalizer, etc. are all designed and manufactured in-house, and are carefully designed to amplify natural tones. In addition, the line out, microphone input, and auxiliary input, which are essential for an acoustic amplifier, are all located on a stylish control panel with original knobs. This makes it a highly versatile acoustic amplifier that can also be used as a mini PA system depending on the situation. ~ONE FOR STRINGS 8Ferdi~ ONE FOR STRINGS 8Ferdi is a compact 140w band amplifier with 3 independent instrument and microphone inputs and 1 AUX input (TRRS audio in/out e Bluetooth audio in). The 3 independent channels are equipped with Gain, 3-Band EQ, Effect send, and Volume. Channel 1 has a compressor and a switch that allows you to change the channel characteristics depending on the type of instrument being used. - Switch characteristics - 1. FLAT: Standard specification for acoustic and classical instruments. Same as Ch2 and Ch3. 2. BASS: Suitable for instruments with rich bass, such as electric and acoustic basses and double basses. 3. JAZZ: Suitable for jazz guitars such as electric guitars, semi-acoustic guitars, and full-acoustic guitars. The AUX channel is equipped with a 2-band EQ and volume. The built-in effects available are REV1, REV2, CHR, and DELAY. In addition to direct out and master volume, it also has a phantom switch.Frequency response: 40Hz - 20kHz Maximum power: 140 Watts Channels: 3 System Format: 2-way amplifier Woofer power: 90 Watts Tweeter power: 50 Watts Sensitivity 1W @ 1m: 89.6 dB SPL Max: 109 dB Crossover: Elettronico Woofer size: 8 HF speaker: Dome tweeter 1 Power System: External Power Adapter 24V DC (included) Construction: Brick Plywood Weight: Approximately 10.4 kg Height: 384 mm (15.12 inches) Width: 276.8 mm (10.9 inches) Depth: 309.9 mm (12.20 inches) Accessories : Bluetooth receiver (Included)