I use a 1060 integrated amp and 2235B receiver (with 30 and 35 watts / channel) with a pair of ADS L520's quite often. These are around 93dB efficient and play very nicely and as loud as I'd want with lower power. They also do well with L780's, which are not efficient. These are not current models (AKA used), so prices will vary, but the L520's are generally cheap. Depending on how loud you listen and how big your space is, many other models will work well, too. I've also used a pair of Dahlquist DQM-9's, and they sound very good with these Marantz units, too.