The Machete MFX-60 coaxial pair: published fitment and driver data, head-unit or amplifier power, why Alphard pitches it as rear fill, and how it differs from the MLC-60 and the Machete Fight 60.

The Hertz DCX 87.3 is the smallest Dieci coaxial we sell, for 3.5-inch-class dashboard openings: specs, why it needs a high-pass filter, centre-speaker cautions, a conflicting power figure on Hertz's site, how it compares with the DCX 100.3 and JL CF-350mt, and its single UK review.

The Hertz DCX 100.3 is Dieci's 4-inch coaxial for dashboards and small doors: specs, what a dash-mounted speaker should do, power and filter advice, how it compares with the JL C1-400x and DCX 87.3, and the three UK buyer reviews we found.

The Hertz X 165 is the least expensive Hertz 6.5-inch speaker we sell, a coaxial built for factory replacement and head-unit power. Specs, when an amplifier helps, how it compares with the K 165 and DCX 165.3, and the scant owner feedback.

The Hertz X 690 is Uno's four-way 6x9 for cars with factory 6x9 openings. Specs, what the piezo super-tweeters really add, head-unit versus amplifier power, and how it compares with the Dieci DCX 690.3.

The Hertz DCX 130.3 is Dieci's 5-inch coaxial: specs, where 5-inch speakers sit in cars, why its 40 W rating matters if you add an amplifier, how it compares with JL and Alpine 5.25-inch options, and the one owner review we found.

The Alpine DM-65 is rated at 92 dB, which on paper suits factory head units. Specs, M-Series hardware, the fitment figures Alpine leaves out, and how it compares with the SPJ-161C2 and S2-S65.

The Hertz DCX 165.3 is Dieci's 6.5-inch coaxial for factory door openings: specs, how it runs on head-unit power, fitting it in Indian car doors, how it compares with the Uno X 165 and Cento CX 165, and what five UK buyers said.

The Hertz DCX 690.3 is Dieci's three-way 6x9: specs, what the 60 mm midrange adds, how it compares with the Uno X 690 and JL C1-690x, rear-deck installation tips, and what three UK buyers scored it.

The Alpine SPJ-161C2 is the least expensive Alpine speaker we sell: a shallow 6-inch coaxial for factory openings. What it offers on head-unit power, how it fits and when to spend more.

The 7x10-inch Hertz DCX 710.3 is the largest Dieci coaxial we sell. Specs, how it differs from the 6x9 DCX 690.3, why it wants an amplifier, how to confirm your car takes a 7x10, and why owner reviews are hard to find.

Alpine's Type-J SPJ-691C3 is an inexpensive three-way 6x9. Where it fits in Indian cars, what 60 W RMS and 400 W peak really mean, and how it compares with the S2-S69.

Alpine's S-Series 6.5-inch coaxial examined: published specs and where Alpine's pages differ, head-unit vs amplifier power, fitment checks, how it compares with the R2-S65, S2-S65C and BRV-S65, and what US owners report.

The smallest S2 coaxial we stock, examined: Alpine's published specs, head-unit vs amplifier power, matching it to the S2-A36F or S2-A55V, fitting a 13 cm speaker, and what US owners report.

Alpine's BassRev coaxial promises deep bass from a 6.5-inch door speaker, but its 38 Hz figure depends on the OPTIM8 processor. Specs, power needs, fitment and India MRP.

Alpine's S-Series 6x9 coaxial examined: published specs and where Alpine's own pages disagree, head-unit vs amplifier power, fitting a 6x9 in an Indian car, how it compares with the R2-S69, and what US buyers report.

The Hertz CPX 165 is the Cento Pro coaxial for cars that can't take a component set. Specs, exactly what it adds over the Cento CX 165, the depth to check, amplifier advice and India pricing.

The Hertz MPX 165.3 puts Mille Pro drivers into one 6.5-inch coaxial. Here are its specs, head-unit versus amplifier power, what owners report, and how it compares with the MPK 165.3 component set.

The Hertz CX 165 is the most affordable Cento speaker we sell: a sensitive, shallow 6.5-inch coaxial with an aimable tweeter. Specs, head-unit vs amplifier power, door installation and how it compares with the CPX 165 and CK 165.

The Alpine HDZ-65 is the coaxial in Alpine's Status range. Its build, head-unit versus amplifier power, coaxial versus the HDZ-65CS and HDZ-65C components, fitment in Indian doors, and the limited owner feedback so far.