TADs SS Hibachi Amps

Yes, it would be interesting to hear something from someno who has used these.They seem like an interesting product.Does anyone know do they use bipolar or MOSfet transistors?

What about bass response?If i order these amps, they will be used for the bass drivers only.I intend to use a SET amp on the tweeter and mid driver.Volume control(in TAD-125) is a bonus in this set-up.
The areas i am looking for in the bass are - speed,punch,deep as it can be and tight bass.

Eagleman,i've read your review,and as much as i find it helpfull,i s'd still like to know about the bass a bit more.

Also,TAD's page does not mention whther bipolar or mosFET transistors are used.Any info on the damping factor?

Thanks for your answers.Martykl,could you please define "overdamped" and "underdamped"?

Thanks to both of you,Marty and Shadorne.These are both very good explanations.I now understand what this means.My speakers have very impressive and efficient bass output.However,in order to see in what category they fit (over or under or just right),i first need to acoustically treat the room.There are just too many reflections.
My speakers are Silverline Sinfonia (18Hz-28kHz,96 dB).They have two 12" woofers and one 7" mid-woofer.Each 12" woofer is ported.I don't think these are "overdamped".I think they come closer to "underdamped" or "just right".
This is next for now,amps will come after that.