See all parts that fit your 2015 Q7
800W RMS Class D Diamond Elite Series 4-Channel Full Range Car Amplifier
Product highlights
• 140 watts x 4 channel @ 4 ohm
• 170 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier
Universal 6.5" Waterproof Silicone Rubber Speaker Baffle Ring Kit (Pack of 2)
$21.99
List price $34.99
This offer cannot be combined with any other coupons or offers.
Diamond Audio DES400.4D
30% off
$519 99
$199 99
Priced separately $719 98
Promo Savings of $60 00
Total price:
$659 98
This offer cannot be combined with any other coupons or offers.
Diamond Audio DES400.4D
30% off
$519 99
$79 99
Priced separately $599 98
Promo Savings of $24 00
Total price:
$575 98
This offer cannot be combined with any other coupons or offers.
Diamond Audio DES400.4D
50% off
$519 99
$34 99
Priced separately $554 98
Promo Savings of $17 50
Total price:
$537 48
Pre-installed black nylon mesh covering protects the power wire from being damaged, and pre-terminated seamless power and ground ring terminals provide reliable performance and cut out the hassle when installing. This offer cannot be combined with any other coupons or offers.
Diamond Audio DES400.4D
25% off
$519 99
$79 99
Priced separately $599 98
Promo Savings of $20 00
Total price:
$579 98
Pushing your door speakers to their absolute limit requires an amplifier capable of delivering exceptionally clean and consistent wattage. Diamond Audio DES400.4D steps up as a highly versatile 4-channel Class D powerhouse designed specifically to elevate your vehicle's entire soundstage. By taking advantage of an advanced digital chipset and a full PWM power supply, this robust unit effortlessly produces 140 watts RMS per channel at 4 ohms, or an impressive 170 watts per channel at 2 ohms. It even offers the flexibility to bridge down into a massive 400-watt stereo output, giving you the exact power configuration needed for high-end components, coaxial setups, or dedicated subwoofers.
Integrating this level of audiophile-grade performance into your ride is remarkably straightforward thanks to its highly adaptable architecture. The DES400.4D features balanced differential inputs that actively reject alternator whine and unwanted electrical interference right from the source. Loaded with fully adjustable 35Hz to 350Hz crossovers and flexible auto turn-on capabilities—including VOX, DC offset, and standard remote sensing—this space-saving amplifier makes it incredibly easy to configure a protected, competition-ready audio foundation with nearly any factory or aftermarket radio.
600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers
$79.96
List price $119.99
360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers
$99.95
List price $139.95
480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)
$84.99
List price $94.99
600W Peak (70W RMS) 6.5" XED Series 2-Way Coaxial 4-ohm Speakers
$49.99
List price $59.99
600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers
$109.00
List price $119.99
600W Peak (300W RMS) 6.5" Mille PRO Series 3-way 4-ohm Component Speaker System
$999.99
List price $1175.00
250W Peak (200W RMS) 6.5″ PNW Series 2 Way Component 3-ohm Speakers
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List price $339.00
420W Peak (140W RMS) 6.5" Club Series 2 Way 3-ohm Component Speaker System
$114.95
List price $229.95
440W Peak (80W RMS) 6.5" SXE Series 2-way 4-ohm Coaxial Car Speakers
$42.99
List price $54.99
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Manufacturer:
Model Number:
DES400.4D
Weight:
9.00lbs
Internal SKU:
des4004d
Internal Product ID:
174453
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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:
Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.
