Hi all,
I've recently purchased a bargain pair of Ruark Crusader mk1s. They are a bit of a mess up close cosmetically (poor strip and revarnishing), but they seem to work well, to a point at least.
They do, however, seem to be lacking bottom end grunt. I believe this is down to the woofer surrounds hardening (they are still elastic, but seem too stiff and slowish to return to their original state if I pinch them gently, so I suspect they're not behaving as they should).
The woofers are long since obsolete Seas P17RCY-H H461. Seas woofers of equivalent size are now bigger - I'd need to machine the baffles for them to fit (nope). I've spoken to Wilmslow Audio and had Vifa P17WJ-00-08 recommended as a 'should-sound-similar' replacement. However, I don't want to chuck £120+ at the speakers in the form of new woofers if they don't sound any good as a result.
Is there anything I can do to give myself some assurance that the Vifa woofers are worthwhile, as it'd be a shame to break the speakers for their uber desirable Dynaudio midrange units (I could get more for these alone than I paid for the speakers).
Any thoughts?
Other options include keeping my PMC TB2s (wife hates them, they intrude in the room more than the Crusaders), or buy some smaller standmounts such as Dynaudio X14.
I've recently purchased a bargain pair of Ruark Crusader mk1s. They are a bit of a mess up close cosmetically (poor strip and revarnishing), but they seem to work well, to a point at least.
They do, however, seem to be lacking bottom end grunt. I believe this is down to the woofer surrounds hardening (they are still elastic, but seem too stiff and slowish to return to their original state if I pinch them gently, so I suspect they're not behaving as they should).
The woofers are long since obsolete Seas P17RCY-H H461. Seas woofers of equivalent size are now bigger - I'd need to machine the baffles for them to fit (nope). I've spoken to Wilmslow Audio and had Vifa P17WJ-00-08 recommended as a 'should-sound-similar' replacement. However, I don't want to chuck £120+ at the speakers in the form of new woofers if they don't sound any good as a result.
Is there anything I can do to give myself some assurance that the Vifa woofers are worthwhile, as it'd be a shame to break the speakers for their uber desirable Dynaudio midrange units (I could get more for these alone than I paid for the speakers).
Any thoughts?
Other options include keeping my PMC TB2s (wife hates them, they intrude in the room more than the Crusaders), or buy some smaller standmounts such as Dynaudio X14.
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Hmm, maybe more trouble than they're worth then. Thanks for the comparison - very useful to see the graphs together line that.
I thought they were several dB apart, but wasn't really sure what that'd mean apart from the lower frequencies seeming quiet.
I thought they were several dB apart, but wasn't really sure what that'd mean apart from the lower frequencies seeming quiet.
It's doable in the way that one alters the mid and tweeter padding resistors and maybe some of the filter parts. Hard to know without insight. I wish I had these at hand, a wonderful product.
Okay, maybe I'll take more of a look into this. I think it would be quite a shame to pull out the mids and tweeters and then dump the rest.
The guy I bought them off had someone after them for the Dynaudio mids and was going to scrap the rest, so I feel I ought to try to keep them going.
The guy I bought them off had someone after them for the Dynaudio mids and was going to scrap the rest, so I feel I ought to try to keep them going.
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So, where would be the best place to start? Do I need to take measurements of what's in the speakers already? Would it be of use to measure the inductance and resistance of each section of the crossover and its associated driver at the binding posts and then take measurements from the tags on each driver, then do some maths to find out what would need to be tweaked to suit the new LF unit?
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