giovanni56 Posted February 7, 2021 Report Share Posted February 7, 2021 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 Quote Link to comment Share on other sites More sharing options...
genek Posted February 7, 2021 Report Share Posted February 7, 2021 (Auto translation) 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 Quote Link to comment Share on other sites More sharing options...
ligs Posted February 7, 2021 Report Share Posted February 7, 2021 That is good to know. I tried Dynaudio D21(3/4" dome with a semi horn) before in AR3a. The treble sounded too prominent. Now I know why. George Quote Link to comment Share on other sites More sharing options...
legopart Posted August 19, 2021 Report Share Posted August 19, 2021 Where can I but this adapter ? Can tweeter 8ohm replace 4ohm tweeter ? Quote Link to comment Share on other sites More sharing options...
giovanni56 Posted August 20, 2021 Author Report Share Posted August 20, 2021 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 Quote Link to comment Share on other sites More sharing options...
legopart Posted August 22, 2021 Report Share Posted August 22, 2021 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? Quote Link to comment Share on other sites More sharing options...
giovanni56 Posted August 22, 2021 Author Report Share Posted August 22, 2021 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. Quote Link to comment Share on other sites More sharing options...
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