DIY amp identification

[Crashappy]

Hi all

I received this DIY amp few years back without any info as to type/power etc
Attached are some photos.
On the heatsinks are the following Transistors
2N3716 x 4
2N3055 x 1

Hoping it jogs someone's memory as to possibly what this may be.
It does sound okay.

Thanks

 

[Mongoose]

 

[SeanS]

 

[Crashappy]

 

[DasBoxer]