Home Speaker Asylum

General speaker questions for audio and home theater.

where can I find more specific calculations?

Ok, so two options, a capacitor between amp and speakers (to augment the existing crossovers?) or a more active approach between the preamp and the amp as shown in Kingshead's post below.

Like you Tre', I would prefer not having anything in the path with the mid/high frequencies. I am however interested in the approach of placing a capacitor between the main amp and speaker that will only affect the low frequencies in my bi-wired set-up. Are you are talking about a capacitor placed between the pos and neg terminals (sort of like a zobel network without the resistor), or in-line capacitors? Additional LR5 measurement information and specifications are provided in the linked review.

The manufacturer's specs indicate the frequency response of my LR5s is 40Hz-22kHz, +/-2dB and, from the measurement graph below, it appears the low frequencies begin to drop off at about 60Hz. Even with this limited frequency response, the speakers are relatively inefficient at 86dB/2.83V/m, probably due in-part to the sealed box design.

Could you direct me to where I could find more specific guidelines to the placement and appropriate value of the capacitor you recommend?







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