LS3 5A woofer(s) buggered

[drSM]

To my dismay i have found that there is excessive distortion from at least one of my speakers.
Its the woofer / mid bass
These are quite old 15 ohm Rogers Ls3 5A s.

Shld i get a pair of new units from Falcon and pop them in.
Whilst i am at it is there anything i shld do re X over components etc ?
Thanking you all

[Puffin]

Is the distortion due to voice coil rubbing? Have you centred your fingers around the cones and gently pushed them in and out? If you hear a rubbing noise then that is your answer, often cured by turning the units upside down to counter the effects of gravity.

[walpurgis]

Or use my hairdryer trick to re-centre the rear spider. It works on KEF drivers, I've tried it.

[drSM]

hmm one of the cones has a v slightly gritty feel
i have turned them over
will test them to see which is the sonically inferior one
Thank you Walpurgis and Puffin

[walpurgis]

The 'gritty' feel is the coil binding in the magnet gap.

Usually this is due to a misalignment, although occasionally it can be caused by the lacquer on the coil having overheated and bubbled.

If it is just misaligned, you can probably cure it.

[Lawrence001]

If buggered what is the opinion on the new falcon units vs the original b110s?

[walpurgis]

Falcon would no doubt be the best folk to ask. They have a reputation for giving decent advice.