Article: Purifi PTT6.5 Woofer and 1ET400A Amplifier Technology Review

[Lord Victor]

On 12/24/2019 at 10:12 PM, mitchco said:

 

Merry Xmas @Abtr As an owner of the KEF LS50's and crossed over to dual Rythmik L12 subs with a digital active XO at 100 Hz, they sound really good! Certainly does offload the IMD. As to which one sounds better is a matter of opinion, and how loud one listens, but it is hard ignore the vanishing low distortion of the PTT6.5 woofer...

 

Looking at the measured distortion spec of the LS50 at Soundstage! it comes on pretty quick at 200 Hz. The Rythmik L12's are a good pairing, but maybe dual Rythmik F8's positioned close to the LS50's would offer better even performance as they can be crossed higher e.g. 200 Hz.

 

Kind regards,

Mitch

Very interesting to hear, I personally have a pair of Monitor Audio Platinum 100 and was considering going for a Raidho and Nad M22.2 amp when I saw this, now I’m wondering if this is a better route... for at least the amp or even both...

but if the LS50 can keep up with the Purifi, maybe I should stick with the original plan on the speakers...?

This hobby truly is an enigma, when you can’t ‘try before you buy’!

 

Cheers