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Old 6th July 2014, 06:04 AM   #1
rb1234 is offline rb1234  New Zealand
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Default Speaker ID (Philips?)

Hi all,

A friend has given me two old speakers that both have the following on them:

2422 257 51104
AD 12252/HP8
DD 00 609 111
Made in Belgium

From what I've read online these are probably Philips. I am interested in using them as outputs for a 100w guitar amplifier that requires a min. total impedance of 4ohms and two speaker outputs. I'm hoping someone here can help me figure out what the impedance and watts for these speakers are before I hook them up.

P.S. these speakers were given to me with two tweeters also. I'm not sure if these were originally paired with the other speakers but i'll probably exclude them if I use these for my guitar amp. I assume the impedance/watts will still be appropriate?

Thanks in advance for any help / ideas
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Old 6th July 2014, 06:26 AM   #2
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Location: Victoria, BC, NA, Sol III
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It is a Philips. 12" 8 ohm.


community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
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Old 6th July 2014, 03:41 PM   #3
IG81 is offline IG81  Canada
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Check at the bottom of page 3. No T/S parameters, but a bit of detail. IMO, the 'HP' suffix may simply mean high-power and can be found in both woofers and fullrange units, respectively with W and M suffix, followed by the impedance as P10 noted.

Seems like they built a stiffer suspension for it, increasing excursion-limited SPL up, or closer to its thermal limits and the resonant frequency at the same time.

EDIT - The legend for Philips part # is on page 9 of the linked document. HP does stand for High-Power as I had guessed. I suppose this would make this driver about as suitable as any Philips can be for guitar, but it is still a music/hi-fi unit.

Last edited by IG81; 6th July 2014 at 03:56 PM.
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