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[GEORIGG]

Hi All,

I have recently become a member having bought a year 2000 2.5 V6 CDX with a Phillips CCR2006 radio/CD unit with a non working CD and have read numerous posts detailing Bose unit speakers are 2 ohm and not 4-8 ohm.

Having just bought a Sony radio/CD to replace the CCR2006 I have been trying to find out what the speaker impedence is for non- bose standard units(i.e. Phillips radio/CDs).......have done a search but have not been able to find this info.

Very much obliged if someone can advise.......are all Omegas fitted with 2 Ohm speakers or only those with a Bose system?

with thanks,
georigg

[GEORIGG]

Just found a post by DaveDND which states that standard speakers fitted to the Omega are 4 Ohm, so that question now answered BUT having read his post I'm now looking for a post whch gives the power rating of the "standard speakers", so if I can modify my first question a bit and throw my apology into the forum about not looking properly, etc., (isnt it typical, you spend two or three nights searching for an answer, dont find one and then five minutes after posting a query, you find the answer) well at least part of it!!!!

Just for info, I'm fitting a Sony MEX-BT3900U radio/CD/MP3 unit with a USB and 3.5mm jack socket and also has a bluetooth facility to allow me to use the phone, hands-free, through the radio. The radio is rated at 4 x 52watts per channel max output which equates to an RMS value of half that(26watts per channel), which, as I don't listen to techno etc., at full volume, I'm hoping will not blow the standard speakers!

Comments most appreciated!!!

Much appreciate any comments/answers.
Georigg

[AndyRoid]

The radio is rated at 4 x 52watts per channel max output which equates to an RMS value of half that(26watts per channel), which, as I don't listen to techno etc., at full volume, I'm hoping will not blow the standard speakers!

I would interpret "maximum" to mean the peak to peak value, so the average RMS on that will be around 18W which is unlikely to take the speakers out in normal use.

[TheBoy]

Although you will see an audio quality benefit in replacing the speakers with quality ones. With such a poor quality headunit, any improvements I'm sure would be welcomed.

[Marks DTM Calib]

The 52W is the peek to peek value.

Divide by 2 to get the peek value of 26W

Multiply by 0.707 to get the RMS value of 18.38W

The maximum you can get from a vehicle supply (without the use of DC to Dc converters) is around 22W RMS into 4 ohms

[Dave DND]

Standard NON-BOSE speakers used across the Vx range in the eighties/nineties was around 20W at four Ohms

Easy answer to your question - No, nothing fitted as a standard speaker is going to be up to the output of a modern head unit of today - the original head units were around 8W to 15W with a few oddball ones at 18W

and those are MAX figures and not RMS !!

[GEORIGG]

Many thanks to all who provided comments, including Dave DND for his original post covering the speaker impedence and his reply re the speaker wattage. I think I will leave the existing speakers in place for the moment or until they start to "rattle" and then replace them.......first off though will be a replacement cam belt kit as the car has just covered 70k miles and no mention in the service records of a cam belt change!

Rgds to all,
Georigg

[TheBoy]

As hinted, the original speakers (non bose) should work OK with that HU, just don't run them at full chat (they distort anyway).

When funds/time allows, it will benefit from decent speakers though