Sigma Acoustics MAAT Vector XAC

[bonzo75]

I wrote shot the technical aspects of the speaker and the flexibility in the opening part, and also published Aldo’s FR response

Sigma MAAT – Final speakers from Italy – Zero Distortion

zero-distortion.org

 

[Marcus]

I’ve not heard the maat with best tube amps so I can’t comment on that. But with 2 different tube amps used to drive the Orchestra 2.9 at Aldo’s room at Munich sound nowhere near the karan and pilium in my opinion.

Although they’re very sensitive speakers at around 100db 8ohm, but in order to control those 15” woofers properly at any volume level, it requires very powerful amps at the highest quality built possible.

Due to my family situation, I can’t come to visit Aldo at his place just yet and the owner of the system with maat/kondo to see how things go. But one day I will make it happen, hopefully soon enough.

Andrea is using Kondo Gaukon-II, 50W/ch 211 power amps and these drive speakers like there’s no tomorrow. We put on the most demanding classical and rock pieces you can imagine and drove them to insane levels. To be honest, it was way over my (loudness) tolerance level, and at times I was expecting Gaukons to crash, but they went through these torture tests with authority and total control. Fascinating!

 

[Audiohertz2]

Tweeters are from Mundorf.

You see two hand tightening knobs at the back of the bass cabinet? I was told that with these you can put additional pressure on woofers from the back, so my prediction is that these knobs must be connected to the woofers with a metal rod or something similar to further damp woofer casks. Maybe sonrock can explain that better…

Yes Tweeter is AMT design (Heil) ..! Sensitivity is rated at 100db , nice piece of kit ..!

 

[sonrock]

The massive knobs are indeed to control the bass extension by increasing or decreasing the air movements toward the back of the speakers.

Aldo’s using very dedicated metal tubes inside the cabinets for bass reflex of each driver, and the woofers have extra treats to tailor for the room and owner’s preference.

 

[sonrock]

Andrea is using Kondo Gaukon-II, 50W/ch 211 power amps and these drive speakers like there’s no tomorrow. We put on the most demanding classical and rock pieces you can imagine and drove them to insane levels. To be honest, it was way over my (loudness) tolerance level, and at times I was expecting Gaukons to crash, but they went through these torture tests with authority and total control. Fascinating!

I think the kondo gakuon are something else among all other tube amps which I believe are very special. I’m just no longer interested in tubes, otherwise I’d definitely give them a try here.

 

[Audiohertz2]

Well if speaker is 97db -98db , 50 watts will be sufficient db level wise. The higher voltage amp will control the bass better so there is something to gain do so which may or maynot improve total performance ..

 

[sonrock]

That’s true, and that’s why I said we need very high quality built amps to drive the maat to their ultimate performance regardless ss or tubes.