If you go with KEF R11s I don't think you'll need to bring a sub into the equation. They are a big speaker but will not go as low as your sub but given the right amplification their bass can be very quick and precise providing you can place them in their optimum position. Speakers are always thought of as the most important part of any set up. Many people forget that the second most important part is their position and the room that they are in.
If you are not really listening to music but just have it as background then do you really need anything better than the Denon. At my time of life listening to music takes preference of working out.
KEF speakers do work very well with Rega amps, especially so in the bass department. I've linked a current list of amps that have HT by-pass.
Audiophile.no has made a list of stereo preamps and integrated amps that have one sort of HT-bypass. This list is updated 02. August 2023 with amplifiers from Hegel, and will be will be continuously updated. Written by Karl Erik Sylthe, at 15.02.07 Translated to English in june 2008Latest update...
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