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-   -   What amp for tweeter only in active setup ? (http://www.diyaudio.com/forums/chip-amps/86078-what-amp-tweeter-only-active-setup.html)

Groundloops 7th September 2006 01:47 PM

What amp for tweeter only in active setup ?
 
I wonder what kind of amp to use to drive the tweeters only in an all active 2-way setup ?

Speakers are Jim Griffins MiniMonitors (Jordan JX92s / Aurum Cantus G2Si crossed at 3 kHz with 18 db/oct.) For the lower octave I use a pair of MyRef Rev C monos, xover is a heavily modified Behringer DCX2496.

What would you do - just use another amp that comes along ?

kepa1 7th September 2006 02:18 PM

Talking about tweeters in active filtered set ups, I've read about a French guy pluging his Fostex FT66 straight, in his active filter, you read good... no amplifier!

I've not tested it yet, especially because my DCX is broken right now, but I'll definitely give it a try. Apparently you need high sensitivity tweeters (>100db) to achieve a convenient sound pressure level.

Alternatively, I'd add another amp of the same manufacturer.

Bye

Groundloops 8th September 2006 12:07 PM

Nice suggestion, but Im not sure if a tweeter with 6 ohms nominal impedance is an adequate load for an opamp.

AndrewT 8th September 2006 01:40 PM

Hi,
6ohm is too low even for a line driver designed to push big current into a pair of 50ohm terminated coax.

Nuuk 8th September 2006 06:57 PM

This may be of interest! ;)

Leolabs 9th September 2006 02:22 AM

Re: What amp for tweeter only in active setup ?
 
Quote:

Originally posted by SmellOfPoo
I wonder what kind of amp to use to drive the tweeters only in an all active 2-way setup ?
How about LM1875???


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