What happened with the BASS? MC352/C42/B&WN803

Sugarbrie, the C42 is brand new. I am not sure if I want to leave it on all the time. I will be a little more patient letting it break-in.
Rontube, I am currently using the 8 ohm on the MC352. The 803 are 8 ohms. However, Mcintosh did saids to use the 4 ohm if I upgrade my N803 to N802. splitting the speaker cables to 2 and 4 ohm seems aggressive to me.
Thanks for your responses.

Dumb question time! Are you saying that your new Mac pre is defficient in the bass in an absolute sense or only in comparison to the Onkyo? If the latter, is it possible that the Onkyo was just a bit over ripe and you are now hearing a more accurate bass?

Newbee, I think you are right. A few people told me that I am now hearing more accurate bass. I am just too use to strong bass.

The C42 is solid state right? Don't be afraid of leaving it on all the time (or most of the time). Many high end solid state preamps don't even come with on/off switches. They are best left on all the time.

It takes a couple hours for many solid state devices to get fully up to speed; and it is possible you may be done listening before it sounds its best. Even my DAC has no power switch.

You say you changed the IC from the pre to amp. If you went to balanced, you need to flip the switch on the back of the 352. I had the 42/352 combo. It's very good. I wouldn't be suprised if the Onkyo was a little riper in the bass. It's a little trick to sound warmer or richer. The beauty of the 42 is you have the 8 band EQ. Just warm the sound up a bit with those knobs if you prefer. I would suggest flat for awhile to give your ears and brain a chance to adjust. The Mac's look good in the dark don't they.