BOSS Audio Systems 6.5" Car Door Speakers CH6520B (Pair) — 250W Peak, 2-Way Coaxial with Poly Tweeter

The BOSS Audio Systems CH6520B are 6.5-inch two-way coaxial car door speakers built to deliver clear full-range sound up to a 250-watt peak in a compact, easy-to-install package.

These CH6520B speakers pair a poly injection woofer with a 1-inch polyimide tweeter and a rubber surround to produce balanced mids and crisp highs while resisting road vibration. Designed for standard 6.5-inch door openings, the speakers are a cost-conscious upgrade that fits most factory locations without complicated modifications. Sensitivity and impedance ratings make them compatible with a broad range of factory and aftermarket head units and amps.

How do these speakers improve everyday in-car listening?

The CH6520B refines sound by combining a stiff poly cone with a compliant rubber surround and a tuned tweeter to reproduce vocals and instruments more clearly than many factory speakers. Higher sensitivity helps them produce audible output from lower-power head units while the stamped basket keeps the motor assembly stable under load.

• 90 dB sensitivity at 1W/1m for efficient loudness
• Poly injection cone for controlled midrange response
• 1" polyimide tweeter for clearer highs and vocal detail
• Stamped basket and rubber surround for mechanical stability

Will these speakers fit my vehicle and how are they installed?

The CH6520B follows common 6.5-inch mounting standards, so they fit many car and truck door openings without custom adapters. Measure your factory speaker depth and hole diameter before purchase; the CH6520B requires a 5.5-inch mounting hole and 2.1 inches of depth. Professional installation is recommended for secure mounting and optimal wiring.

• Mounting hole diameter: 5.5 inches
• Mounting depth: 2.1 inches — check door cavity clearance
• Sold in pairs with a combined weight of 2.9 lbs for both speakers
• Compatible with 4-ohm factory and aftermarket outputs

How much power can these speakers handle and what source works best?

Each speaker is rated to handle up to 250 watts peak power, but a safe continuous (RMS) power from most head units or small amplifiers will be considerably lower. For consistent, distortion-free performance pair them with moderate-powered aftermarket receivers or a small amp; avoid driving them at sustained maximum peaks to preserve longevity.

• Peak power handling: 250 watts
• Nominal impedance: 4 ohms for broad compatibility
• Frequency response: 100 Hz–18 kHz — balanced mid-high range
• 1" voice coil for reliable thermal handling

What materials and design choices affect sound quality and durability?

The CH6520B uses a poly injection cone for stiffness and consistent tone, while a rubber surround improves longevity and reduces edge break-up. A 1-inch polyimide tweeter offers stable high-frequency reproduction, and the stamped basket provides a solid mounting structure that resists deformation from road vibrations.

• Rubber surround for long-lasting excursion control
• Stamped steel basket to reduce mechanical flex
• Polyimide tweeter and 1" voice coil for reliable treble and power handling
• Frequency range tailored for vocals and instrument clarity

Who this is for: The BOSS Audio Systems CH6520B speakers are aimed at drivers who want an affordable, straightforward upgrade from factory speakers with improved clarity and compatibility. They suit budget-conscious buyers replacing worn-out door speakers, owners of stock head units seeking louder, cleaner sound, and DIY installers who need a reliable 6.5-inch coaxial that fits common door openings. For the best results, match these speakers with a properly configured head unit or a modest amplifier and consider professional installation to ensure secure fit and wiring.

Specifications at a glance:

• Dimensions: 2.8 x 6.9 x 6.9 inches
• Impedance: 4 ohms
• Mounting Depth: 2.1 inches; Mounting Hole: 5.5 inches
• Item Weight: 2.9 lbs (pair)
• Frequency Response: 100 Hz – 18 kHz
• Sensitivity: 90 dB @ 1W/1m
• Poly injection cone, rubber surround, stamped basket
• 1" voice coil, 1" polyimide tweeter
• 3-year platinum online dealer warranty through Amazon purchases