Onkyo HT-S3500 and Onkyo HT-S3700 are indeed two very identical home theater systems. In fact, Onkyo HT-S3500 is actually an older model, whereas Onkyo HT-S3700 is a newer model. Onkyo HT-S3700 is an update for Onkyo HT-S3500. Now, with the…
Onkyo HT-S3700 Vs HT-S3500