Agree with Rrog that your speaker choice is more germain to the sound you will get. You should also mention what characteristics you are after and what music styles you listen to (and what you like about it).
That said, I ran a PS Audio DL3 with my Stingray (ProAc 1SC speakers) and was quite happy. You can get one new for about $650 as they are being phased out in favor of the new Perfect Wave series. For your $1,000 price, there are second hand ones here on the 'gon that have Cullen modifications too (which I had done to mine).
Many people are fans of the Benchmark as well but it's most common criticism is that it is on the analytical side - something that might not agree with the already aggressive Stingray. But if you like the Stingray, you probably like that sound anyway. You will have to go used to stay under $1k.
Lots of other good options out there. Good luck.