Eton
Eton PRX 170.2 165 mm (6.5 inch) coaxial system
SKU: ET-PRX170.2
Eton PRX 170.2 165 mm (6.5 inch) coaxial system
New old stock
Eton PRX 170.2 165mm 6.5 Inch Coaxial System
German-engineered coaxial with an integrated 3000Hz crossover. 43Hz to 22kHz, 88dB sensitivity, DIN-standard 165mm mounting at 2.56 inch depth. Discontinued line, remaining stock only.
- New old stock
- Discontinued
- Final sale
What You Are Buying
An Eton PRX 170.2 coaxial in new old stock condition: never installed, never powered, from a line Eton no longer produces. We are not restocking it, so the shelf is the supply.
Eton is a German manufacturer with a long reputation in the mid and upper tiers of car audio. The PRX line sat below their reference series but carried the same engineering discipline, and the specification sheet reflects that. A 43Hz lower limit on a 6.5 inch coaxial is unusually low, and it is the single most interesting number on this driver.
Read this before you buy
Final sale. No returns, no exchanges, no manufacturer warranty. This is a discontinued model with no replacement pipeline. If you need warranty coverage, buy current production.
Reading the Specification
43Hz to 22,000Hz
Most 6.5 inch coaxials stop somewhere between 55 and 70Hz. This one is published to 43Hz, which means it will carry more of the midbass on its own before a subwoofer has to take over. In a car without a sub, that difference is audible on kick drum and bass guitar. Eton also published an alternative figure of 53Hz to 25,000Hz under a different measurement standard, and both are in the Specifications tab rather than us picking the flattering one.
88dB sensitivity
88dB is comfortably above average for a coaxial and it is what makes these workable on modest power. They will play properly on a head unit, which is not true of every speaker in this size class.
50 to 70W RMS, 110W maximum
A useful band. The published recommendation is 50 to 75W per channel from an external amplifier, and that is where they will sound their best. There is enough headroom in the rating that a 75W amplifier will not trouble them, and enough sensitivity that a 20W head unit still gets a result.
3000Hz integrated crossover
The crossover is built into the driver rather than sitting in an external box. That is what makes a coaxial a coaxial: one part, one hole, one pair of wires. 3000Hz is a conventional handover point and it keeps the woofer out of the range where a 6.5 inch cone starts to beam.
Fitment
- 165mm DIN mounting fits most European door locations directly. Japanese and American cars usually need an adapter plate, which is not supplied.
- 142mm bolt circle is the figure to check against your existing mounting holes, not the 165mm outer diameter.
- 2.56 inch mounting depth is shallow enough for most doors, but measure before ordering. Window glass drops into the cavity and a driver that fouls it will not survive the first time the window comes down.
Straight answer
If you want one speaker per door doing the whole job, with real low-end reach and enough sensitivity to work without an amplifier, this is a strong choice. If you want the tweeter up at ear height for imaging, buy a component set instead.
Who This Suits
Buy these if
- You are replacing tired factory speakers and want a straightforward job.
- You are running without a subwoofer and want the doors to reach lower.
- You have between 20W of head unit power and 75W per channel from an amplifier.
- You accept a final sale on a discontinued product with no warranty path.
Look elsewhere if
- Imaging is the priority. A component set puts the tweeter where you want it.
- You are running well over 75W per channel.
- Your doors cannot take a 2.56 inch depth and you do not want spacers.
- You want warranty coverage or the option to return.
Installation
- Pull the door card, keep the clips, and test-fit dry with the window both up and down before wiring anything.
- Wire straight from the head unit or amplifier. No external crossover is needed.
- Check the 142mm bolt circle against the factory holes; an adapter plate is often easier than drilling.
- Seal the door card and the large service holes in the inner skin. A door that leaks bass out the back of the driver sounds thin regardless of what is mounted in it.
Everything needed to mount the drivers into standard 6.5 inch locations is in the box. Speaker wire and adapter plates are not.
Condition and sale terms
New old stock from a discontinued Eton line. Never installed, never powered. Sold as a final sale with no returns, no exchanges and no manufacturer warranty. Packaging may show shelf wear from storage; contents are unused. Specifications are as published by Eton, including the two differing frequency measurements noted in the Specifications tab. Once remaining stock is gone this listing will be removed.
Questions on fitment before you buy: contact us.
| Type | 2-way coaxial system |
|---|---|
| Size | 6.5 inch / 165mm, DIN standard |
| Tweeter | Centre mounted, integrated crossover |
| Impedance | 4 Ohm |
| Condition | New old stock, discontinued |
| RMS power | 50 to 70W |
|---|---|
| Maximum power | 110W |
| Recommended amplifier | 50 to 75W per channel |
| Frequency range | 43Hz to 22,000Hz |
|---|---|
| Alternative measurement | 53Hz to 25,000Hz |
| Sensitivity | 88 dB (1W/1m) |
| Crossover point | 3000Hz, integrated |
| Mounting diameter | 165mm DIN standard |
|---|---|
| Bolt circle | 142mm / 5.59 inch |
| Mounting depth | 2.56 inch |
| Included hardware | Screws and fasteners for standard 6.5 inch locations |
Eton published an alternative frequency figure of 53Hz to 25,000Hz under a different measurement standard. Both are shown rather than one being chosen.
