Reviews etc. of Tonearms:
DP-8: Blog by Robert E. Greene on The Absolute Sound website
DP-8: Review by Jerry Seigel (turntable: Amazon Referenz)
DP-8: Review by Jerry Seigel (turntable: Basis 2500 Signature)
DP-8: The Absolute Sound June/July issue 2010. Review by Robert E. Greene
DP-6: Review by Robert E. Greene
UP-4: Review by Robert E. Greene
Miscellaneous:
DP-8 Flyer (A4 format)
DP-8 Flyer (letter format)