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The DS18 ZXI-654 is a 6.5-inch two-way coaxial car speaker rated at 80W RMS and 240W peak with 4-ohm impedance. Its glass fiber cone and 89 dB sensitivity mean it plays loud from modest amplifier power, which is the main draw for budget builds and factory-radio upgrades. The built-in tweeter gives full-range output from a single mounting point, so it is simpler to install than a separate component set. Against similarly priced coaxials it trades refinement for output; owners rate it highly for volume and value, while critical listeners note the treble can be bright and bass is limited without a subwoofer.
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Lowest price we've seen: $94.95 on Nov 13 at Amazon. Tracked across 1 store since Nov 13.
With a 4.9 average from 16 ratings, owners mostly praise the ZXI-654 for loud, clear output and easy installation. Complaints are few and center on treble brightness and limited low-end.
The ZXI-654 is a 6.5-inch 2-way coaxial car speaker from DS18. It has a glass fiber cone, a rubber surround and a steel basket. The glass fiber cone gives higher sensitivity, so the speaker produces more sound at lower power.
The woofer uses a barium ferrite magnet and a 1-inch voice coil. The 1-inch tweeter has a PEI diaphragm and a neodymium magnet. The 2-way design covers a full range of frequencies.
It handles 80 watts RMS and 240 watts max. Its sensitivity is 89 dB, so it does not need a lot of power to reach high volumes.
