Yes, Niles makes speaker selectors that also incorporate volume controls to balance the speakers. But as mentioned, they are really intended for whole house setups with ceiling or wall mount speakers where critical listening isn't the goal. I've used them in the past for custom installations for customers, but never for personal use so no real long exposure experience. I don't know, but it just might be the ticket for your needs.
Heres a link to a picture of the Niles unit. They also have models for more extensive systems, plus units that only switch between pairs without gain controls.
Martin
https://guideimg.alibaba.com/images/shop/111/03/27/8/niles-2-pair-speaker-selector-with-volume-contr...
Heres a link to a picture of the Niles unit. They also have models for more extensive systems, plus units that only switch between pairs without gain controls.
Martin
https://guideimg.alibaba.com/images/shop/111/03/27/8/niles-2-pair-speaker-selector-with-volume-contr...