- To select if the filter should move upwards or downwards.
Sold by Monacor, who also sold effects under the Monarch Brand with exactly the same cases. It's possible that this effect also exists with the Monarch name.
Sold out early 1999.
No forum threads about this effect yet.
Here's some code to post a link with image on forums, eBay, websites,...
imq stage line mwh22