Humm, your current dac and amplifier are on the "warm" side already are you using silver interconnects/wiring (sometimes makes the system etched), otherwise if it is too uninvolving you might have to look at your interconnects or adding a preamp.
The Meridian is about detail and weight, your Audio Aero dac should be warmer than the meridian. I've always liked the 508.24 meridian, but my Gamut CD1R is more musical.
Have you tried moving your speakers farther into the room and tried near field listening? Have you filled your speaker stands and put blue-tack or spikes between the speaker and the stand?
The Meridian is about detail and weight, your Audio Aero dac should be warmer than the meridian. I've always liked the 508.24 meridian, but my Gamut CD1R is more musical.
Have you tried moving your speakers farther into the room and tried near field listening? Have you filled your speaker stands and put blue-tack or spikes between the speaker and the stand?