Quote Originally Posted by DSJR View Post
Paul, any chance of some more info/prices on the new crossovers please? They look superbly done and I hope they perform the way that the HPD's always promised.
Hi David

yes, no problem.

The crossovers are designed and built by Mark Pitcher and do perform the way intended, just without the treble energy controls. Mark has taken the advice of Dr Paul Mills of Tannoy when developing this design. Mark also tests the crossovers using a signal generator to ensure as flat a response as possible and its these things that have allowed fine tuning to end up with the current design.

I'll supply Mark's email via PM to anyone interested in contacting Mark about the crossovers but more details are below for the ones I have:

"T" series Mk2 Tannoy crossovers with 4 pin connector supplied.

Yellow MKT Polyester Tannoy grade capacitors rated at 250v;

Re-designed Tabnnoy crossovers with some tweaks (approved by Tannoy) applied:

Using a high grade 1.6mm FR4 (high grade flame retardant) printed circuit board, track layout designed with the “star” earthing principle, with 2 separate isolated independent circuits, one for HF, one for LF, but shipped with input links in for common input (easy removable for separate low and high frequency circuits). So can be used for Bi-amp applications. Five black grommets are provided as mounting “spacers”, along with 5 suitable screws.

Based closely on the Tannoy circuits, with a few tweaks. Use as an upgrade over the Tannoy standard crossovers with the switches, or replacement if yours is missing or faulty. Full frequency tested with from 10 to 30kHz.

Supplied with 4 output cables (2 for LF, 2 for HF), 1 metre, so you can shorten if required, with an upgrade 5A nickel plated brass connector block (with nuts and bolts) to fit to the chassis of the speaker, complete with fixing screws, holes line up with existing holes, simply unscrew (if rivets, drill out carefully) the existing Tannoy 4 pin, cut the wires, strip and screw the speaker wires into one side of the terminal block. Then fix the wires from the crossover to the other side of the terminal block. Alternative supply is the 4-pin Tannoy connector (stocks running low!).

Mark trades on Ebay under the name "beterbyvalves" and his crossovers can be bought direct from there too.

They're good and they're not "foo" money. The HPDs sound bang up to date with these and have noticeably better detail than with the older crossovers.