Originally Posted by hunterbuck
Does anybody know how the sound quality of the avr 1700 would compair with that of the avr 1650? Just curious. Thanks.
Sound quality should be similar.
Amp section is essentially identical. Same amplifier topology used for past several
generations of H/K 1,2,3 series AVRs.
Differences are the power supply (now using a SMPS for the 1700) and change in secondary/filter/storage/reserve capacitance (total 6600uf 2/63v caps for 1700, total 16400uf 2/50v caps for 1650)
For comparison, secondary capacitance for AVR 1565 13600uf 2/50v caps, AVR 1600 (preceded 1650/1565) 20000uf 2/50v caps, AVR 154 (preceded 1600) 27200uf 4/50v caps (x54/x550HD series last generation with dual secondary power supply)
If you are using very efficient speakers crossed over, unlikely you will notice a difference in power between the 1700 vs 1650. How the new switch mode power supply impacts the sound quality has yet to be established, though IMO I don't expect any appreciable difference. I don't have any hands-on time with the new 1700 driving familiar speakers, however.
If you have less efficient, power hungry speakers (especially if they will be running full-range) any shortcomings will become apparent more readily. These receivers are best suited for smaller bookshelf/sub or sat/sub configurations.