Audio Solution Quartetto and Energie AGM Battery Bundle

Four Channels. One Obsession. Pure Italian Sound.

The Audio Solution Quartetto is Roberto Tognon's statement in four-channel amplification — handcrafted in Italy with the precision and passion of a master craftsman. Whether powering a full front stage or bridging to mono for a subwoofer, the Quartetto delivers a soundstage of breathtaking realism and effortless control.

Pair it with an Energie 12V AGM Power Cell and you give the Quartetto exactly what it needs — rock-solid, interference-free power that never wavers, never sags, and never compromises the signal your amplifier was designed to reproduce.

🎁 Bundle & Save 8% — Battery May Be Free

When you bundle the Quartetto with an Energie AGM battery, you save 8% off the combined retail price. On smaller battery sizes (PR1000–PR2400), the bundle discount exceeds the cost of the battery entirely — your battery is effectively free with the purchase of the amplifier.

What's Included

• Audio Solution Quartetto — 4-channel FET car amplifier, handcrafted in Italy by Roberto Tognon
• Energie AGM Power Cell — your choice of size from PR1000 through PR4800

Quartetto Technical Highlights

• 4 x 200W RMS @ 4Ω | 1 x 600W Mono
• THD+N <0.007% — virtually zero distortion
• SNR >105dB — an extraordinarily quiet noise floor
• Full discrete FET topology — no shortcuts, no compromises
• Gold-plated connectors and premium Italian craftsmanship throughout

Why AGM Power Matters

High-end amplifiers are only as good as their power supply. The Energie AGM Power Cell provides the clean, stable, high-current delivery that the Quartetto's FET power stage demands — eliminating alternator noise, voltage fluctuation, and the subtle distortions that inferior power sources introduce.

Built for the Serious Listener

If you believe a car audio system should be judged by how close it gets to live music — not how loud it gets — the Quartetto is your amplifier. This bundle is the complete foundation for a reference-level SQ build, delivered together and ready to transform your listening experience.

Handcrafted in Italy. Ships to USA, Canada, and Mexico.