The 1016 is the 1015's replacement. The 1015 is out of production, although a few may still be around for sale.
As 73ChargerFan said, there are trade offs. You can make the comparisons in detail at the Pioneer site.
To summarize, the 1016 has added a number of convenience features, the most significant of which is HDMI switching. In addition, it has a "Sound Retriever" circuit for better sound from iPod or other highly compressed sources, 7.1 direct input (vs 5.1), and is XM ready, if any of those things are important to you. (None are to me.)
It also has a "Basic Phase Control" circuit designed to improve the integration between subwoofer and main speakers. (This would seem to be a step forward.)
On the downside (although Pioneer's engineers may not agree), it has lower power rating (110 wpc vs 120 wpc), no longer uses an MOSFET amp design, and now uses a Freescale vs the highly regarded Motorola DSP engine. (Whether any of these differences can actually be heard is debatable.)
Moreover, in addition to less pleasing cosmetics, the specs indicate it no longer has a learning remote or aluminum front. (I can't verify the last two.)
For my tastes, the 1015 is better, but everyone has their own priorities.
As 73ChargerFan said, there are trade offs. You can make the comparisons in detail at the Pioneer site.
To summarize, the 1016 has added a number of convenience features, the most significant of which is HDMI switching. In addition, it has a "Sound Retriever" circuit for better sound from iPod or other highly compressed sources, 7.1 direct input (vs 5.1), and is XM ready, if any of those things are important to you. (None are to me.)
It also has a "Basic Phase Control" circuit designed to improve the integration between subwoofer and main speakers. (This would seem to be a step forward.)
On the downside (although Pioneer's engineers may not agree), it has lower power rating (110 wpc vs 120 wpc), no longer uses an MOSFET amp design, and now uses a Freescale vs the highly regarded Motorola DSP engine. (Whether any of these differences can actually be heard is debatable.)
Moreover, in addition to less pleasing cosmetics, the specs indicate it no longer has a learning remote or aluminum front. (I can't verify the last two.)
For my tastes, the 1015 is better, but everyone has their own priorities.












(could be my ears though, and that i don't know what to listen for...)