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Alternative tweeter for Ar3a or Ar3a Improved


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For those who want to try alternatives to the Ar3a or Improved tweeter, with a Scanspeak D2010 or a Scanspeak D2008. Spectacular sound, the tweeter must be absolutely inverted in phase with respect to mid and woofer, the level potentiometer must be eliminated, the most suitable R for a good balance in my opinion is the 4.7 ohm, but for those who want more brightness of 3.3 ohm, and for those who have little absorbent environments the R 5.6 ohm. You need a matching flange between the hole in the cabinet, which has a larger diameter than the tweeter, to keep the tweeter flush with the front panel of the speaker, and a 1.5uF polypropylene capacitor (cheap), for example a Jantzen or Audyn Cap

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For those who want to try alternatives to the Ar3a or Improved tweeter, with a Scanspeak D2010 or a Scanspeak D2008. Spectacular sound, the tweeter must be absolutely inverted phase with respect to the mid and woofer, the level potentiometer must be eliminated, the R most suitable for a good balance in my opinion is the 4.7 ohm, but for those who want more brightness than 3.3 ohm, and for those with poorly absorbing environments the R 5.6 ohm. It is a necessary adapter flange between the hole in the cabinet, which has a larger diameter than the tweeter, to keep the tweeter flush with the front panel of the speaker, and a 1.5uF polypropylene capacitor (inexpensive), for example , a Jantzen or Audyn Cap

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  • 6 months later...
22 ore fa, legopart ha detto:

Dove posso se non questo adattatore?
Il tweeter da 8 ohm può sostituire un tweeter da 4 ohm?

The attached filter scheme is deliberate, to be used on Ar3a and Ar3a Improved but also on Ar11 and Ar10pigreco

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On 8/20/2021 at 5:59 PM, giovanni56 said:

The attached filter scheme is deliberate, to be used on Ar3a and Ar3a Improved but also on Ar11 and Ar10pigreco

ar-3a works with 4ohm tweeter
Scanspeak is 8ohm.

is it enough to change only the crossover?  

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54 minutes ago, legopart said:

ar-3a funziona con tweeter da 4
ohm Scanspeak è da 8 ohm.

basta cambiare solo il crossover?  

The filter diagram I attached fits the 2010 Scanspeak tweeter which is 8 ohms. Everything is described in the thread. You have to eliminate the 6 nF capacitor and exclude the potentiometer that are part of the fitro for the Ar3a 4 ohm tweeter.

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