(NOTE: Only the Premium download is available, Apple are holding back the in-app purchase version for reasons as yet unknown, this is beyond my control sorry)

RSSRadio Premium 2.50 is available on the App Store®

DSP audio processing options including equaliser, compressor/limiter, volume boost and silence remover
Streaming is available for all users, but i don't recommend it, downloading is much less trouble.
You can turn off the download complete notification in settings.
You can setup default subscription settings which will apply to all new subscriptions
Changing the ignore older than setting will auto refresh the subscription