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Old 7th April 2011, 05:53 AM   #1
diyAudio Member
Join Date: Jul 2003
Location: Dona paula, Goa
Default Active crossover amp and Klipsch RB 81

I have bought a pair of klipsch RB 81 ii which r yet to arrive.

And I have a triamp with active crossover, the content r as follows
ESP 3 way crossover
ETI 480 (50W) amp
4780 amp, and
Symasym amp

I had an intention of Tri wiring the speakers to the amp with mids to a sony speaker that I have and the Klipsch RB81 ii.

Sony will be driven from the mid freq output from (mostly) the ETI 480 with the active crossover in circuit.

1) On browsing for the klipsch RB 81 connections, I noticed that even if the jumper is removed, the passive internal crossover remains in the driver path. If I feed the individual band of frequencies to individual drivers, the only advantage I have is, there will be less loss of power in the passive crossover,
but the phase anomaly from the active Linkwitz Riley crossover will remain.

2) My other option would be to use two other amps i.e. 4780 and Symasym to drive the tweeter and the woofer(say) without the active crossover.

Which one of the two above will sound better/is preferred.

Thanks in advance.

Gajanan Phadte
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Old 25th November 2011, 09:50 AM   #2
diyAudio Member
Join Date: Jul 2003
Location: Dona paula, Goa
The speakers r nearly six months old. I just love their sound. They sound so good that u don't need anything beyond a reasonably good sounding amp. Bi-wiring is preferred.

Gajanan Phadte
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