Integrated amp recommendation

I recently bought a used pair of Swiss-made Piega p4L MKII floor-standing speakers. I am looking for a two-channel integrated amp to pair with them. Budget: $1,000.

Among the stated speaker specs: applied power rating 20-200 watts, sensitivity 89 db, 4 ohms impedance and frequency response 38 Hz-50 kHz. To me, the speakers’ sound can be described as natural, detailed and transparent, not aggressive and maybe slightly lacking in bass. The room is 12 x 20, carpeted but relatively bare. I listen primarily to classic rock, classic jazz and classical. I use a Bluesound Node 2i music streamer and CDs. Bluetooth would be nice but not essential.

Thank you for any assistance.