![]() ![]() He used non-polar electrolytics in the original design, and when I built them, I used Solen film caps. In one case, I modified a pair of small Polk speakers using a new crossover designed by Dennis Murphy. Film caps might be "better" in terms of technical properties but not necessarily in terms of sound quality - especially as replacements in an existing design. JBL started doing this on their pro line speakers around 1980, using 0.068 uF film caps. What E-tech and I both found was bypassing an electrolytic with a small film cap gave a more open sound and eliminated some veiling without getting too bright sounding. My experience with Advents (and also E-Tech's) is that changing the electrolytics to polypropylene film caps makes the highs too bright and edgy. Non-polar electrolytics are commonly used in speaker crossovers. I'd like to add some comments about film Vs electrolytic caps. This easily moves the C350 past the C320BEE, and puts it very close to my Rotel gear, although I have not had time to compare them. The bass is unaffected and is still solid with a good sense of slam. It is absolutely transformed!!! The clinical sound has been replaced by some added warmth, non-bright mids and highs, a wide soundstage, and a very natural character. Just today, I added 0.1 uF polypropylene film bypass caps to all the electrolytic coupling caps in the C350. In comparing the designs, the circuit topology is nearly identical but there are differences in the much huskier power supply in the C350, accounting for the better bass and the C320BEE uses 0.1 uF film bypass capacitors on all the electrolytic coupling caps in the signal path in the preamp and power amp. The C320BEE has a noticeably less solid bass line but has smooth mids and highs and a much wider soundstage. The C350 has more solid low bass with noticeable "slam" but is rather clinical sounding and slightly edgy on the top end. ![]() ![]() In stock form they don't sound quite the same. I have two NAD integrated amps, a C350 and a C320BEE. RE: Could electrolytic capacitors in the signal path be a myth?, posted on Decemat 08:33:10Īirtime, I sent you a private message on my experimental results.įor the rest of you, here's what I did. RE: Could electrolytic capacitors in the signal path be a myth? - Sherwood Forest 14:27:51 12/23/15 RE: Could electrolytic capacitors in the signal path be a myth? - Alpha Al 08:33:10 12/12/15 RE: Could electrolytic capacitors in the signal path be a myth? - Steve O 09:39:44 12/12/15 I concur with almost everything Interstage has typed~nT - Cleantimestream 05:47:52 12/13/15 RE: You are welcome.Re: your specific application. You are welcome.Re: your specific application. Now for a specific application? - M3 lover 10:14:44 12/13/15 Never use polypropylene IN e polyester or pio-nT - Cleantimestream 07:27:05 12/13/15ĭo I have this right? - M3 lover 13:32:01 12/12/15ĭo I have this right?.Electros vs. RE: Could electrolytic capacitors in the signal path be a myth? - DannyR 16:11:03 12/12/15 RE: Could electrolytic capacitors in the signal path be a myth? - Bold Eagle 19:37:00 12/15/15 ![]() RE: Could electrolytic capacitors in the signal path be a myth? - Jim McShane 19:06:21 12/14/15 And a variety of WIMA and Clarity, Solan film caps. I am using audio grade Nichicon KT, KW,FW ,FG series caps. But every time the polar cap does sound better. Granted I am usually upgrading the quality of THAT cap. However, this is the fourth or fifth project that I've tinkered with, trying a variety of capacitors and every time I keep coming back to the electrolytics. Seems like every time a posting about signal path capacitors comes up electrolytic capacitors are universally condemned! ![]()
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