I had a great surprise after changing the plastic body of my Denon 103 Pro with an aluminium body from the Analogue Factory in Haverhill, Suffolk
The body is a CNC machined aluminium that fits very well to 103 (better then the wooden bodies).
The sound improvements were great just as I rewired my tonearm: A larger sound stage, more depth, etc.
The weight of the alu body is about 6 gram, the original plastic body 1,5.
The benefits of the weight improvements for the tonearm/cartridge comnination are evident.
Aluminium absorbs the resonances very well (it's used for many cantilevers).
These aluminium bodies are similar to the ZU 103 that cost, of course, much more.
Here are some links about ZU 103:
Sterophile (they prefer here the Zu103 to Koetsu Black)
http://www.stereophile.com/budgetcom...7zu/index.html
6moons.audio:
http://www.6moons.com/audioreviews/zu14/denon.html
I just wanted to share here my impressions and suggest to all that want a new life to their 103.