Where are your maggies??


Hi,

Just took delivery of a pair of Magnepan 3.6 R's and I'm just starting to get a handle on their sound and at the same time having some placement issues.
I'm using a Belles 250i integrated, which despite it's modest power rating seems to handle the Maggie's incredibly well....large, open soundstage, dynamic, no compression to speak of at higher spl's etc.

My only issue so far is that the overal balance and presentation is a little on the bright side of neutral, more so than the monitors that I've used for the past 6 years or so. Also, bass is definately on the 'lean' side, which doesn't help with the issue of a bright tonal balance.
I'm wondering if my room is mostly to blame for the forward presentation, and wondered if any Maggie owners could cast some light on their own placement issues with 3.6's and what steps they may have taken to overcome the forward presentation and lack of bass. I know that placement with the Maggie's is critical and so far I've spent two evenings making adjustments without any real impact to the overal sound. I have some issues with reflective surfaces, but the speakers are 10' clear from the front wall, 25 or so feet clear from one side wall, 12' clear from the other side wall and 18' from the listening chair with 3' behind the chair to the back wall. So room reflections ought not to be a significant issue given their proximity to the room boundaries.(also, they are 12 feet apart with slight toe-in and the tweeters on the outside).

I've messed around with distance from side and front wall, distance from listening seat, distance between speakers, toe-in angle, and have switched the speakers around between tweeters inside and outside.
The changes in position have effected the soundstage, imaging depth/width but have not really altered bass response or the tonal balance to any real degree.

I'm wondering if these are just inherrently 'bright' speakers with no bass??....though I have heard people claiming to get great bass response from 3.6's and have never heard anyone claiming that they are overly bright. (I've got the Maggie supplied tweeter attenuator installed also, by the way).

Should I be trying anything else as far as placement is concerned, what have others used to tame a forward sound??

Should I be concerned about the amp?...it is an integrated with a tube pre and solid state power stage, and most people describe it's sound as warm, full and tube-like.

Sorry for posting yet another 'Magnepan' thread, but my instinct is that these speakers are capable of much more than I'm getting out of them, and I have the space to allow them to 'breathe' with a room approx 30x60.
I do however have a limited budget for amps, $3k max, though I suspect the Belles is really a great amp that is up to the task of handling these puppies.

Any ideas, insights or tweaks would be greatly appreciated!!

Thanks,

Rooze

128x128rooze
the room is massive, period!

slide the speakers all the way to the back wall and move one out until the bass is satisfying, do the same with the second. use some type of repetitive bass music like a nice stand up bass for this exercise.

good luck.
I always felt the 1.6s were bright and especiall touchy and revealing about how they were driven and associated components, my theory is the massive tweeter/QR ribbons have so much output they sometimes need taming.

I agree with the Cardas method of placement, I tried everything with my 1.6s and after using the Cardas formula I never moved them again which is really saying something given my tweeking habits.

Ficus trees placed behind them and near the front on the outsides so as to interrupt the soundwaves headed toward the walls helped. Though these points might not matter much with your large room.

When I switched from my Plinius SA100 MKIII to a Plinius 8200 MKII integrated I lost a surprising amount of bass. You have to get an amp with a ton of current, and Plinius seperates are a great choice, with unsurpassed bass as well as a slightly laid back high end which I think would suit you well.
They say that if a town has one lawyer, he is unemployed, but if there are two they are busy! So too with audiophiles.
Here is another point of view.

First...get more watts. They don't need to be esoteric expensive high end watts, just lots of them. The relatively inexpensive Adcom 5500 would be worth a try, and use it as a basis of comparison to see if you can justify anything more expensive.

Room size...I don't think that the room is too big. In my experience, bigger, with cathedral ceiling is ideal. If you have a high ceiling, suspend the speakers well off the floor and away from all walls. Because your room is so big, you could try a diagonal setup. This can work well. (I envy your room, and I bet some of those other guys do too. Sour grapes).

Get another Maggie...just one for a center channel. IMHO center channel has many advantages, but making more noise is one of them. Use the Adcom 5503 3-channel amp instead of the stereo version.

Get another pair of Maggies, and amp....even more noise. $$$? With dual side-by-side stereo speakers positioning can be difficult, but results can be good. The best I ever heard was KLH 9 electrostatics, dual pair.

Get three more Maggies for full 5-channel setup...$$$$$$$$$ Power the whole rig with the Spectron 6-channel digital power amp. $$$$$ Go to jail for embezelment. (But you will be happy).

Last, and probably least, get several subwoofers.
Thanks to everyone for some great feedback and suggestions!...I like the idea of having 5 maggies, but going to jail has limited appeal, thanks Eldartford!

Just to clarify a couple of points that were raised:
The speakers are fully broken in, as is the amp.
The room does have a suspended floor, but it isn't one that bounces around when walked on, it's solid.
I gave the dimension out from the front wall at 10 feet, it's actually at 7 feet now, with 18 feet to the chair and 3 feet to the back wall. I'm restricted on pulling the chair forward, but I tried it on a temporary basis at 12 feet and it does sound different, better imaging and more space around instruments.

Some things I've noticed in the last 24 hrs since I first made the post: The speakers are incredibly revealing of the source, anything that is a remotely average recording is delivered warts and all. (I guess I should have known this, but this is my first real venture into a higher level of equipment).
It's interesting that some CD's that I thought previously were well recorded, now sound quite poor, whereas others that previously sounded average now sound quite spectacular. Two example of what previously sounded good on my old system are Claptons Unplugged and the Santana revival CD (can't recall the name). Both these were commonly used to demonstrate the 'fidelity' of my old rig, where now I can hardly stand to play them at any kind of volume. The Santana CD sounds compressed with poor dynamic contrast and the Clapton CD just lacks any warmth and midrange presence.
Other CD's sound spectacular - Diana Krall, Nora Jones, Chieftens, some classical etc....

Anyway, I will try the Cardas setup, though I understand that it requires an equilateral triangle between speakers and chair, which may be difficult to get past the wife....incidentally, her first comment on seeing them in the room was "I thought you said they were only a couple inches wide?" (I never lie to her!).

.....I have some work to do on amps/placement, but I really think these are incredible speakers, with tons of potential given some time, and some extra cash!!

I'm still very much open to more suggestions from anyone who has experienced these and has found things that work well regarding amps/placement.

Thanks again

Rooze
OK, Roose, here's a serious response that may actually help you. I owned the 3.6s for 6 months and ran them in a room 16X25 (about 1/4 of your space, I think, but my experience may still be appropriate for you). I bought them new, and during the first month I had reservations exactly like yours. I tried a decent subwoofer (REL Stadium) but found it dirtied up the midrange a bit and changed, but did not improve, the character of the bass. (This has always been my complaint about using subwoofers with full-range speakers, feel free to think I'm nuts if you want). I got a selection of resistors from the dealer ranging from 1 to 5 ohms. This helped with the brightness issue, and it can be fun to play with different values and jumper wires. Amps ranged from Belles 150 to Sim W-10s (1250wpc into 4 ohms). While I agree with many of the comments regarding the need for high wattage/current, I think your 250i, with 250wpc into 4 ohms and 30 amps peak current, should be sufficient for you to find out if you're really going to love these speakers. Three factors were most important in
getting me to love mine: (1)the Maggies broke in over 30 days, (2)my ears broke in (surprise!)in just about the same period--i.e. my frame of bass reference went from big, deep, somewhat bloaty cone bass to leaner, better defined panel bass that had shape and tonal color; and I became accustomed to, and welcomed, the pristine detail available from the remarkable Maggie high-frequency ribbon. As the days passed, I went from the 5 ohm resistor to the 2, the 1, and eventually none. Let's not forget (3) room placement: I found I was able to hear more bass by placing my chair closer to the back wall. You're at 3 feet now--try bringing it back to a foot or two. Bring the speakers much closer to you if the room arrangement/traffic flow allows--I bet they're getting swallowed up in that big room. I listened to my Maggies in a semi near-field position, with the speakers 10-12 feet away from my ears, and my ears about 2 feet from the back wall. Side walls are irrelevant in your case. Toe-in is most crucial to the tonal balance and of course tweeter position is too. Try putting the tweeters to the inside with extreme (45 degree) toe-in, and adjust back in 1-inch increments. Start with the speakers only 8 feet apart on center (this should fill the hole and "warm" the sound quite a bit. The idea here is to create your own little room inside the big room, but with the speakers facing in to the "room" instead of outward into your huge space, as others have suggested. You're mostly there already--I'm just suggesting you shrink the listening area a bit. Break-in of both speakers and ears, and demands of certain musical material, will probably have you adjusting speaker width and depth, flipping tweeter postion and diddling with resistors and jumpers as time goes on. All part of the audiophile fun.
My point is that the 3.6s can be fussy bastards, but they're worth it. I sold mine in a fit of audiophilia nervosa ("onward and upward!") but nothing I've had since then--all WAY more expensive, has given me as many goosebumps. I hope you don't give up on them too soon.