Search results for query: capacitors

...(0.015uf) to the tweeter and midrange circuits, and wondered if this is the correct way? They are connected in parallel to the two Jantzen capacitors (1uf each for a total of 2uf in each circuit. Btw the crossovers are Klipsch type AA. I’ve also went with black lead to black and red lead to...

I'm going to replace the bipolar capacitors in my 1992 Thiel CS2.2s that still sound good (to me). Does it make sense to measure the ESR of the old caps to help choose replacements? Is it likely that the ESR has drifted up in 35 years so that measuring it has too much uncertainty to be of value?

Just curious, if I have an AVR that I use as a pre-amp with another AMP, does the pre-amp AVR use its capacitors at all for anything?

...with 50-60 year old electrolytic caps that are within their original specs. IME, high temperature and ripple currents are what kill capacitors (along with subpar manufacturing quality - e.g. capacitor plaque). Age is not major factor for quality caps. Capacitors reform the oxide layer, if the...

AC coupling in the DAC/ADC path. Coupling capacitors. Typical, usual.

The electrolyte in electrolytic capacitors might contain hazardous solvents, I wouldn't recommend to check their flavor.

I understand what you are saying - what I in turn am pointing out, is that even with bad batches of capacitors, when the temperature is kept low, their life is extended. The bad batch of capacitors that went to several manufacturers around 2008 led to AVR failures. So you can say that the...

How do cheap capacitors cause cabinet resonances?

I can answer that with a definite "yes and no." The components in switched-mode power supplies (SMPS)—especially capacitors—age differently than those in linear power supplies; specifically, they are affected by the stress caused by the switching frequency. It is therefore crucial that these...

Thanks for providing those examples. I hadn't seen such impedance curves before, and those for the larger capacitors were quite instructive. From the examples that you provided, I'd be hoping that the capacitors chosen for a passive crossover were going to behave closely like "ideal" capacitors...

Same goes for capacitors, must take the speaker apart to wire the tweeter separately ?

Nearly 3x current value? I would check, if NTC for inrush current reduction is rated high enough.

That is what strikes me as odd. The industrial-grade capacitors I recommended—the very same ones I use myself—have an MTBF of 100,000 hours under higher loads, a figure that is typically exceeded in practice. I would suggest contacting both B&W and Mundorf simultaneously (ideally by CC'ing each...

I thought that had been debunked by a Neumann engineer on this very forum....

NAD 2200 service manual specifies 45A limit and 50A nominal for 1msec, (I think they had this backwards ie a typo) manual attached see page 2 specification 16. The output devices are 2 x 2SC3281 datasheet attached, they are rated at per device 15A continuous or 20-25A pulsed for for 1msec at...

The 240A figure is based solely on the short-circuit current of the power supply capacitors; the power supply and capacitors themselves wouldn't even manage 10A. The NAD 2200 uses two pairs of transistors per channel, each capable of handling up to 15A—that is presumably where the illusory 60A...

It's unlikely that anything is bad about the capacitors in your crossovers. You need a multimeter that explicitly tests capacitors. Here is a 50 year old pair of Yamaha speaker capacitors for example...

Actually, they do. Capacitors dry out, other things break, nothing lasts forever. Electronics don't improve over time.

...been a relatively low-cost series. You could inquire with Mundorf about replacements. There are various alternative suppliers for such capacitors; if you are looking for an audio-grade capacitor, Intertechnik would be my first choice. Personally, I would recommend replacing all installed...

Awesome capacitors in those monoblocks!