Budget amp that will give Magnepan 3.6Rs better depth of soundstage


I have 3.6Rs and using Emotiva UMC200 pre/proc and an Outlaw Audio 7100 in a 14 by 14 foot room. So I don't need to turn the volume up to massive levels. The amp will do 100 watts per channel into 8 ohms and 165 watts per channel into 4 ohms. I have been thinking of getting a separate two channel amp for the 3.6Rs. I have read that it takes lots of current to get the best soundstage with instrument placement and depth. I am getting wide soundstage and good sound, but the depth is somewhat muddied enough to not get instrument placement. I am looking for a two channel amp that will give me more of the potential of the 3.6Rs, but be able to be purchased for less that $750 used.  Is there any amp that will be worth upgrading to for that kind of money or do I need a new pre/proc as well?

cdavis2260

I agree with misstl, Maggie 3.6s are a lot of speaker for your room. So, making the room ’seem’ bigger acoustically would be the logical first step. That means acoustical panels. They will reduce the level of reflected vs. direct energy and in doing so increase the Critical Distance, that point at which direct and reverberant field levels are the same. My personal preference is Acoustimac for construction quality, fair pricing, and a wide selection of fabric options. Their Home Theater Package 1 would be a great place to start in your room.

Don’t believe that spending more on tweakier panels is money well spent. Inside all of them is either Corning Fiberglas 703/704 or Rock Wool or a paper based material called Eco Core. Rock Wool is the standard works just fine. Much as I believe ceiling panels area Very Good Thing, because Maggies are dipole radiators, I would consider trying 2 of the 6 panels or mounting the bass traps behind the speakers to help control reflections from the back wave.

It’s not so much the watts as it is current and stability at lower impedances. If you have a subwoofer, 100 watts should be more than sufficient.

If you don’t mind an older amp, look for a Proceed HPA-2. it is 250 w/ch at 8 and 500 w/ch at 4 ohms, good down to 2 ohms and will drive virtually anything with a neutral sound and a black background. Know that you will be buying about a 20-yr old amp.

The good news is that its design shares the basic features of dual mono Levinson amps. There are three authorized Levinson service firms that will repair them, if needed, Pyramid Audio in Austin, TX is one of them and does great work, having used them myself. One warning - the amp weighs over 80 lbs. For any needed repairs, however, each of the two amp modules can be separately removed from the case. A local repair firm, technician or Levinson dealer can help with that. They are available used for under $1,000. I have one and it is still going strong. It is a great prescription for any low efficiency, power hungry speaker that requires high current.

I agree that those speakers are too big for the room. I would move down to 1.7’s. Which are excellent.