Gale GS401 Re-foam Project

[walpurgis]

I've decided that I will refoam the midrange drivers at some point as I feel there is more to come from the midrange.

Have you considered enlarging the rear cavity the mids drive into. That may reduce the boxiness you mentioned.

If I recall that particular driver has a rear 'compartment' of about the volume of two coffee mugs and could do with being larger to avoid the cavity honk. It may also help to very lightly re-dope the cones (with Aleene's and a drop of water), bearing in mind that this adds a little mass to the cones and will very slightly reduce the driver's sensitivity (maybe usefully).

[istari_knight]

When I had IMF's with what look to be the same mid's I refoamed them but there was still a little 'boxy' or 'cupped hands' colouration - It was suggested to me at the time to replace the yellow foam in the mid enclosure with lambs wool... I never tried it though.

[MartinT]

Thanks, both.

I've already treated the surrounds with diluted Aleen's. Also, since the mids have their own compartments, it would be a big job to create new larger compartments in the existing cabinets.

However, I shall investigate lambswool in the existing housing, as well as refoaming the drivers.

[The Grand Wazoo]

Would you like me to send you some wool Martin?
I have some left over from a project. It was donated by a kind and generous AoS member!

[MartinT]

Would you like me to send you some wool Martin?

I will have to see what I can get hold of, as it's such a small quantity. Perhaps cotton wool could work?

[MartinT]

You got those grills on yet !?

They're on at the moment, but I never listen with the grills on

[Rare Bird]

I replaced the sponge in my speekas for wool, however i have a large card tube the full depth of the cabinet which is the mid range enclosure, the is empty, no stuffin..

[MartinT]

In a 401, Andr'e? How did you ensure the tube is sealed without removing the front baffle (which I think is glued in place)?

[Rare Bird]

No not in the '401' in the castles..I was just saying my Mid range tube {Enclosure} is empty..

[MartinT]

Ah, ok. I tend to think that more stuffing is required in the Gale mid enclosure, not less. That should smooth out the slight cuppiness in the midrange. It won't take too long to try, but I think I'll re-foam them too.