Hi bought this beautiful speakers Castle Acustics Pembroke 8ohm 88db for 1W and power handling is 75W second hand for very good price and im planning to update crossover capacitors . Im using small stunning Rega IO amplifier, its 30w per channel amp. Amplifier is generally warmer sounding and smooth . Problem is this combo is missing clarity and bass . I love design of speakers and im on budget too , this is my first hi-fi set up ever,I would like to replace old capacitors EXPOTUS 4.7J 250V MPP and second one is EXPOTUS 10.0J 250V MPP for new one to bring more clarity and bass to life . Please see photos of existing crossover and capacitors , Could you please kindly help me to choose best value capacitors for updating cross over?Thnak you
Please see attached Photos
Please see attached Photos
Hi, and welcome to the forum!
Your Castle crossovers are already fitted with high quality MPP (Metallised Polypropylene) capacitors.
I would not expect to hear an audible difference as a result of swapping these for 'audiophile' type capacitors.
Your Castle crossovers are already fitted with high quality MPP (Metallised Polypropylene) capacitors.
I would not expect to hear an audible difference as a result of swapping these for 'audiophile' type capacitors.
Your capacitors are 4.7 uF and 10 uF types.
Since you are UK based, look to Willys Hifi for how you can upgrade your polypropylene film capacitors to more 'audiophile' types such as Mcap EVO and Mcap EVO Oil. Those have a 450 V rating, which is OK.
https://willys-hifi.com/collections/mkp-polypropylene-capacitors
Bear in mind that these 'audiophile' capacitors are physically much larger than your MPPs, so fitting them on your circuit board may be problematical.
However, I must say I'm extremely doubtful that these expensive capacitors would solve your "missing clarity and bass" problem.
Since you are UK based, look to Willys Hifi for how you can upgrade your polypropylene film capacitors to more 'audiophile' types such as Mcap EVO and Mcap EVO Oil. Those have a 450 V rating, which is OK.
https://willys-hifi.com/collections/mkp-polypropylene-capacitors
Bear in mind that these 'audiophile' capacitors are physically much larger than your MPPs, so fitting them on your circuit board may be problematical.
However, I must say I'm extremely doubtful that these expensive capacitors would solve your "missing clarity and bass" problem.
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The Audyn capacitors are well constructed and more affordable if you feel you must try a swap:
https://willys-hifi.com/collections...lene-capacitors-400v-5?variant=36530268700831
thank you very much , my concern is about aging of capacitors , speakers are old , does capacitors quality degraded after long time ?
I'll add that my experience with earlier Castle Acoustic speakers (Clyde and Richmond) was that they were refined to the extent of being 'laid back'.
Both Castle models were sold on and, on each occasion, I reverted to my home built speakers because of their superior immediacy.
The Pembrokes would probably benefit from a more 'perky' amplifier.
EDIT: Although your Rega IO is a very good amp!
Both Castle models were sold on and, on each occasion, I reverted to my home built speakers because of their superior immediacy.
The Pembrokes would probably benefit from a more 'perky' amplifier.
EDIT: Although your Rega IO is a very good amp!
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I would work on your room positioning, then listen with an equaliser. Use it to explore and/or fix your issues.