Rotel 1056 upgrade paths!

[scott555]

Hello,

I am a long time reader of HTGuide and a new member. This is my first post.

My present configuration is -
A Rotel 1056 driving a pair of Magnepan 12s in front, rears are a pair of magnepan mmgw and a mmgc for center. No subwoofer - I pushed LF contours up a notch for now.

Manepans are rated at 4 ohms driven at 5 x 75W. No dedicated listening room, Its all in my living room.

I feel Magnepans can use more power. If I add a 1075, I'll be able to drive them at 200w/channel. First question - If I do so, what would be the primary gain - more definition/clarity or more db?

Second newbie question - What is better? Somehow use the amplification of both 1056 and 1075 or leave 1056 just for preprocessing and letting 1075 do the amplification job?

Reason I asked this - I don't have any knowledge about active crossovers or bi-wiring/bi-amping. I have recently started to read about this. I do not know if something of this sort can be done using 1056+1075. If I wanted/needed to such combination is it even possible/ recommanded / suggestable? What should drive the Subwoofer if both 1056 and 1075 are available?

Please suggest. Thanks in advance

- Scott

[Marcel B]

I would start with a stereo amplifier for the Magnepan 12s (1080 ?).
The 1056 can handle the other channels for now.
or
I would buy a bigger amp like the 1095

What I mean to say is that looking at the specs (low efficiency etc) of the Magnepan 12s I don't think a 1075 would be the best choice as upgrade. The 1056 should be able to drive the rear channels, especially whn it only has to amplify these channels

Marcel B

[scott555]

Do I need 330w/Channel ?

Thank you for the reply Marcel!

The top three rows in rmb1095 specs look like this -

Model RMB-1095
Continuous Power Output (20-20 kHz, <0.03%) 5x200 watts /ch / 8 ohms
DIN Power Output (1 kHz, 1%) 5x330 watts /ch / 4 ohms

Does this mean that for 4 ohm speakers it can provide 330w/channel?
What is DIN power? (This DIN power for 1075 is 5x200 watts, hence I thought of considering them ).

what would be the primary gain of providing this much power - more definition/clarity or more loudness?