Need some treble

Depending on your speakers and placement, you might be able to get a bit more perceived treble from just toeing them in more towards your listening position.  It's an easy and free adjustment.

What speakers?  I have a suggestion but you must be comfortable getting inside the cabinet and get access to the crossover.  If the tweeter circuit is designed with a choke(resistor), reduce the ohm value a bit.  Maybe 0.5 ohms.  Had to the same myself. 

@sureshmirchand ....an equalizer can 'fix' that high-end 'roll-off' to the degree of another listener noting that everything is beginning to sound 'shrill' to them but ok to you....🙁
If you haven't already, go have your ears checked, generally can be done for free.

The most common 'flaw' in our experience of audio is the age of the listener and the degradation of 'our equipment' in a world of noise.
If you find yourself saying "What?" more of late to people, there's a clue... ;)

Here's a 'quickie cure', meanwhile... 

I've a pair of the earlier 8024's, whereas the 2496 has it on steroids.

Available used....I've some other Behr items, their 'loudspeaker mgmt.' digital x-over is sweet...👍

...does depend upon how one feels about mixing 'phile with pro gear...

I agree to look into modern programmable hearing aids.  They often have music programs that expand the frequency range of the aid and remove filters. The Oticon aids I have do a great job in both normal life situations and listening to music. 

McIntosh has a new 8 band EQ @ 3K...awesome