They'll provide a bit of warmth to the sound, but the price might allow you to overlook this. If you want something neutral and transparent get the Endler or EVS attenuators. I have had all three of these and the EVS are the best. They are back in production so you don't have to look for a used pair.
The EVS and Endlers are 24 step switches so you have flexibility instead of a flat 10db. Also, if you have a single source system you could use them in lieu of a preamp.
The EVS and Endlers are 24 step switches so you have flexibility instead of a flat 10db. Also, if you have a single source system you could use them in lieu of a preamp.