Who knows? They might be suitable for rehearsal in a permanent place. There are several (larger and smaller) configurations from this company, but this one seemed the most 'general purpose'. The handful of reviews were all very positive but I wouldn't go strictly by that. I thought some of you might have some first-hand experience with them. You gotta' admit, the price is right.

https://www.amazon.com/gp/product/B01BZPI2EE/ref=pe_360310_279562130_em_1p_0_im

chas