Highlights:

• component speaker system includes two 5-1/4" woofers, 2 tweeters, and 2 crossovers
• Dynamic Balance polymer/mica composite woofers with butyl rubber surrounds
• Kapton voice coils
• 1" liquid-cooled silk/polymer composite dome tweeters
• flush- and surface-mount swivel cups
• Neodymium tweeter magnets
• electronic tweeter protection circuits
• 2-way external crossover network (12 dB/octave, 4,000 Hz high- and low-pass)
• ABS wheel-design grilles
• stainless steel mounting hardware
• certified for marine use
• power range: 10-100 watts RMS (250 watts peak power)
• frequency response: 53-23,000 Hz
• sensitivity: 93 dB
• top-mount depth: 2-5/16"
• warranty: 1 year

Incredible Sound, Affordable Price

The db Series offers superior looks and even better sound. And we’ve done all that at prices that make high performance affordable to everyone! The db5251 component system works well in OEM factory setups, as well as with high-powered aftermarket head units and component power amps.

db5251 Features:

Dynamic Balance^® polymer/mica composite mineral filled cone is stiff yet lightweight for big sound, little distortion.

Marine Certified Polk db Series speakers are built tough to withstand the toughest environments so they are perfect for use in boats of all types. That’s why Correct Craft offers Polk speakers in their award-winning Nautiques ski and wakeboarding boats.

25mm liquid-cooled silk/polymer composite dome tweeter with neodymium magnet for clear, detailed highs.

Flush & surface mount swivel cups allow placement flexibility and soundstage optimization.

Low-mass 2-layer 25mm Kapton voice coil former is lightweight for high sound output. Kapton’s high melting temperature (725°F/400°C!) ensures high power handling and kick-butt reliability.

Multi-hole mounting pattern and shallow depth our highest vehicle application ratio for easy drop-in installations in practically any car on the road, including yours.

Muscular ABS grilles, computer optimized and based on exclusive MOMO designs.

Durable butyl rubber surround won’t fall apart under the stress of extreme temperatures, sunlight or time, for years of the great Polk sound.

Pole plate heat sink promotes better heat dissipation for superior power handling and reliability.

Flat spider for faster, longer excursion linear motion.

Flexible woven leads sewn directly into spider for greater reliability.

2nd-order Butterworth outboard crossover for fiddle-free perfect sound.

Electronic tweeter protection circuit protects your tweeters from accidental abuse.

Vented crossover housing gives you a choice of hidden wire channels for easier, more professional-looking installs.

Rock solid, acoustically inert stamped steel basket finished in rustproof gun metal gray.

Stainless steel hardware.

All Polk products are made using the best materials and the most advanced manufacturing techniques. They pass the industry’s most exhaustive quality tests, including drop testing, extreme signal response and UV & salt exposure testing. Polk loudspeakers are built to perform for a lifetime.