Xcelsus Audio DEFINIO 4 – Definio Series Class D 4 channel Amplifier - Previous Demo

Professionally Maintained Demo Units
Every demo unit has been carefully maintained by our certified technicians. These aren't customer returns or damaged goods - they're the same high-quality equipment we've used to demonstrate premium sound to our customers for years.

Pre-Tested & Verified
Unlike typical clearance sales, every item has been tested and verified by our technical team. We stand behind the quality of our relocation inventory.

Everything Must Go Pricing
These aren't regular sale prices - this is genuine "moving warehouse" pricing. Discounts you simply won't find under normal retail circumstances.

Trade Show Display Models
Many items are pristine display models from major audio trade shows - equipment that's been seen but never installed. These pieces often include special editions or limited releases not available through regular retail channels.
Previous Demo Unit - Perfect Working Condition
The Xcelsus Audio DEFINIO 4 represents the pinnacle of Class D amplifier technology, delivering exceptional audio performance in an ultra-compact design. This revolutionary 4-channel digital amplifier combines the efficiency of Class D topology with the sound quality traditionally associated with Class AB amplifiers, making it an ideal choice for discerning audiophiles seeking both power and precision.
Engineered by Swedish audio specialists, the DEFINIO 4 delivers robust 105 watts RMS per channel at 4 ohms, escalating to an impressive 165 watts at 2 ohms. When bridged, this compact powerhouse produces up to 320 watts, revealing its true potential for driving demanding speaker configurations. The amplifier's advanced circuitry ensures pristine audio reproduction with minimal distortion and maximum efficiency.
Superior Audio Engineering
The DEFINIO 4 showcases remarkable technical specifications that set it apart from conventional amplifiers. With a signal-to-noise ratio of 90 dB (A-weighted) and total harmonic distortion below 0.02% at 5W, 1 kHz, this amplifier delivers crystal-clear audio reproduction across its expansive 10 Hz to 40 kHz frequency response. The damping factor exceeding 100 ensures tight control over connected speakers, resulting in accurate bass response and detailed midrange clarity.
Compact Design Meets High Performance
Despite its impressive power output, the DEFINIO 4 maintains an incredibly compact footprint measuring just 41.8 x 104 x 270mm. This space-efficient design makes installation possible in tight spaces while maintaining optimal thermal management. The amplifier's elegant black finish with gold accents adds a premium aesthetic that complements any audio system installation.
Advanced Control Features
The DEFINIO 4 includes sophisticated control options including adjustable high-pass and low-pass filters, allowing precise tuning for various speaker configurations. The included bass remote control provides convenient subwoofer level adjustment from the driver's seat. Input sensitivity ranges from 0.2 to 6V with 5 kohm input impedance, ensuring compatibility with a wide range of source units and audio processors.
Xcelsus Audio DEFINIO 4 – Definio Series Class D 4 channel Amplifier - Previous Demo
Frequently Asked Questions
Are these items authentic, and why are the prices so low?
This sale includes demo units we've used for customer demonstrations since 2016, new-old-stock from discontinued product lines, display models from trade shows, and carefully curated inventory we've collected over nearly a decade. Most items include original packaging where available.
What types of items are included in the relocation sale?
Our relocation sale includes demo units we've used for customer demonstrations, new old stock from discontinued product lines, and display models from trade shows. All items are genuine products from top car audio brands - we're simply clearing inventory we can't take to our new location. Items range from amplifiers and speakers to processors and accessories accumulated over nearly 10 years at this location.
Do sale items come with manufacturer warranties?
Warranty coverage varies by item and condition. New old stock items typically include full manufacturer warranty if still valid. Demo and display items may have limited or no manufacturer warranty remaining. We clearly state warranty status in each product description. All sales are final on relocation sale items.
How does shipping work for relocation sale items?
We ship relocation sale items using the same careful packaging methods as our regular inventory. Shipping costs are calculated at checkout based on size and weight. For multiple item purchases, we'll combine shipping where possible to save you money. Large items like subwoofer boxes may require freight shipping with additional costs.
Can I return or exchange relocation sale items?
All relocation sale items are sold as-is with no returns or exchanges. We encourage local pickup customers to inspect items before purchasing. For shipped items, we provide detailed descriptions and photos. Since we're relocating, we cannot accommodate returns or warranty service after the sale period ends.