Many good recommendations have been made. Just a note… since your speakers are 89db efficient with a reported 4 ohms impedance, the output impedance (or damping factor) of your amplifier is important. The lower the output impedance (or, the higher the damping factor), the better-sounding combination with your speakers it likely will be. Have fun.
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.