Steg QM75.4 4 Channel Amplifier

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.
The Steg QM75.4 4 Channel Amplifier represents the pinnacle of Italian car audio engineering, delivering uncompromising sound quality that transforms your vehicle's audio system. This competition-grade Class A/B amplifier produces 75 watts RMS per channel at 4 ohms, providing clean, powerful amplification that breathes new life into factory and aftermarket speakers alike. Manufactured by STEG Italy, renowned for their audiophile-grade components and meticulous attention to detail, the QM75.4 amplifier features advanced microprocessor-controlled systems and military-grade PCB construction with gold-plated copper reinforcement.
Exceptional Power and Versatility
The QM75.4 delivers impressive power output with 75W RMS x 4 channels at 4 ohms, 105W RMS x 4 channels at 2 ohms, and 210W RMS x 2 channels when bridged at 4 ohms. This versatility allows you to power front and rear speakers independently or bridge channels for subwoofer applications, making it an ideal solution for complete system upgrades.
Advanced Italian Engineering
Built with STEG's exclusive G.R.I.P.S. (Ground Improved Path System) technology, this amplifier eliminates external interference while maintaining signal purity. The sophisticated crossover system features independently adjustable high-pass (15Hz-3.5kHz) and low-pass (35Hz-3.5kHz) filters with 12dB slopes, plus variable bass boost (0-12dB at 45Hz) for precise sound tuning.
Professional Installation Features
The QM75.4 includes high-level inputs with auto-turn-on capability, eliminating the need for aftermarket line-output converters in most installations. The stabilized power supply ensures consistent performance whether your engine is running or off, while comprehensive protection circuits safeguard against overheating, short circuits, and improper loads.
Steg QM75.4 4 Channel Amplifier
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.