@uberwaltz
Because the PL70 is equipped with the famous MU70 engine and should be identical or derived from (if I remember correctly) to the engine mounted on the Exclusive PL 10 which is better in quality than the PL70II engine even if the written specifications do not say so.
Furthermore the MU 70 in the past was sold separately as an engine this because at Pioneer they believed it very much.
Because the PL70 is equipped with the famous MU70 engine and should be identical or derived from (if I remember correctly) to the engine mounted on the Exclusive PL 10 which is better in quality than the PL70II engine even if the written specifications do not say so.
Furthermore the MU 70 in the past was sold separately as an engine this because at Pioneer they believed it very much.