Can the Harp Wah help to practice at a lower volume?

“Quieting” the volume of the harmonica was not the purpose of the Harp Wah, but it has been reported by several players that it can reduce the overall volume when you close the cup off completely.

One player reported that he lives in an apartment and uses the Harp Wah to play quietly in the evening.

Another inserted some cloth inside the cup which further helped reduce the volume.

As lowering the volume was not the intent of the Harp Wah, I don’t advertise or recommend it as such. Having said that, It does lower the volume – particularly when some cloth-like material is inserted.