Hi
Do caps affect frequency response?
Ie would 30/40 year old caps reduce frequency response?
Cheers
Hi
Do caps affect frequency response?
Ie would 30/40 year old caps reduce frequency response?
Cheers
Location: London
Posts: 685
I'm James.
Possibly depending on how out of spec they were. Mostly electrolytics but also paper in oils seem to be prone to this.
What's the application, any pics?
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As a generalisation I would say that any caps that are restricting or controlling the frequency response are unlikely to change their value enough to be concerned about.
Unlike ancient electrolytics that could have dried out somewhat.
Am i getting confused between caps and resistors?
Should ageing amplifiers not have a diminished frequency response?
Location: London
Posts: 685
I'm James.
Not really, but components go out of spec and this may upset the performance. Difficult to say how without a circuit.
Valves of course can change considerably and the effects can be as you describe.
Re. Alan I was more thinking of coupling and smoothing caps with respectively leak and esr changes.
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Location: Lanarkshire, Scotland
Posts: 141
Naim seem to recommend having their amps and power supply's recapped and from what I've read it does make a difference
Current Lash Up:
TEAC VRDS 701T > Sony TAE1000ESD > Krell KSA50S > JM Labs Focal Electra 926.
Location: Witney Oxon
Posts: 893
I'm Martyn.
I understand that replacing capacitors in speaker crossovers can give an improvement, as their value can
drift over time.
By how much I don’t know, as most caps have a 10% tolerance so presumably they aren’t too critical in
crossovers.
Location: Cardiff Wales
Posts: 32
I'm winston.
I can say from experience there is no doubt at all.
Changing the caps on my IMF TLS 50 made a huge difference.
All I had from mine was muffled muddy bass, no mids and no top end.
Changed the caps and they came alive.
Though that doesn't mean it works for every old speaker.