Wharfedale W45 Xover Schematic

[wasillaguy]

Picked up a pair of Wahrfedale W-45s that appear to be original. Didn't find a schematic online, so thought I'd post this, along with some questions.
They sound like crap, with thin highs and non-existent low-mid.
I expected the caps to be way out, and they were off (I think the 6ufd was 5.2 on one speaker, the furthest out). I will recap, but don't expect much as I can't see how this crossover ever produced decent sound.

Got out a sig gen and looked at each leg-

Woofer is max at 70Hz, 3dB down @ 350Hz, 6dB down @ 1100Hz

Mid is max at 4900Hz (but only about 2/3 of the input level), 3dB down @ 1840Hz on the low side, and not quite 3dB down all the way up at 20KHz

Tweeter sees nothing until about 13KHz, and never more than about 1/6 the input level, all the way to 20KHz.

If I could get some comments from the gurus-
-What were the designers thinking?
-If I wanted to keep the original drivers, what would you suggest for Xover
-Would it be good practice to keep the low cross down at 350Hz, assuming this was done in consideration of cabinet size?

Thanks in advance!

 

[wasillaguy]

Ok, after reading a couple old Wharfdale threads that were resurrected today (weird), I plan to bypass the L-pads and let the new caps settle in before passing judgement.

 

[wasillaguy]

Never mind....
I think bypassing the L-pads was the cure, though the new caps certainly helped too. They sound real nice with the bass turned up a couple notches.
Now to get them cleaned up. Here's one as it came and the other already scrubbed with Murphy's Oil Soap.
Next I need to re-cap a low power receiver to pair them up with.

 

[mbbach]

I recently picked up a pair of these and used to hand drawn schematic above to help me get them figured out. I finished them as designed and just replaced the old capacitors. I was surprised to figure out that the variable resistors are 50ohm. When fully down the mid and tweeter are effectively turned off, and when fully up they are extremely bright. But at about 1/3 to 1/2 up, the speakers sound great. Similar to KLH 17s but with more mid-range clarity (as you would expect). I remade the schematic and figured I'd post it here for future reference.