Hi, welcome to A'gon.
There will not be any problem at all, so far as your amp blowing up, etc. Your Sansui is rated at 110 watts into 8 ohms, which should be plenty. The DALI's 4 ohm nominal impedance will not be too low for the amp. (Solid state amps aren't that sensitive to impedance, at least when it's that high. Getting below 2-ohms starts to become a concern).
I've not tried the Heliccon 300, but I have tried the DALI Helicon 400 which really seemed to like a lot of power to control the bass. If your bass is really bloomy and a little overblown, it's probably the need for a better amp and more power, say 200+ watts into 4 ohms. (It sounded best when we used 1000 watts into 4 ohms monoblocks, really).
Try what you've got, you've got a "cheap" amp mixed with some really nice speakers that'll reveal any weakness in your system. If it turns out that the amp can't do the DALIs justice, then consider a used Bryston and use the receiver's "Pre-Out" to drive the separate amp.
Dave
There will not be any problem at all, so far as your amp blowing up, etc. Your Sansui is rated at 110 watts into 8 ohms, which should be plenty. The DALI's 4 ohm nominal impedance will not be too low for the amp. (Solid state amps aren't that sensitive to impedance, at least when it's that high. Getting below 2-ohms starts to become a concern).
I've not tried the Heliccon 300, but I have tried the DALI Helicon 400 which really seemed to like a lot of power to control the bass. If your bass is really bloomy and a little overblown, it's probably the need for a better amp and more power, say 200+ watts into 4 ohms. (It sounded best when we used 1000 watts into 4 ohms monoblocks, really).
Try what you've got, you've got a "cheap" amp mixed with some really nice speakers that'll reveal any weakness in your system. If it turns out that the amp can't do the DALIs justice, then consider a used Bryston and use the receiver's "Pre-Out" to drive the separate amp.
Dave