I recently became the proud owner of a used 300 power amp in conjunction with my CDS3/XPS2/252/ Neat Ultimatum MF5 set up.Unfortunately using the 300 has helped tip my speakers ( already close to teetering on the edge of bass dominance, depending on the records) into bass boom hell.
I use my rear ported Neats in a room measuring 13x12 feet on a suspended wooden floor. I bought the Neats used. It was amazing to see them for sale used , so soon after they had been released onto the market, so I took the risk of buying them , without a demo in my living room . I had of course heard them in my local dealers (with a view to buying them) before.
When I first got the Neats home I was using a CDS2/XPS2/52/Scap/135's. I was mightily impressed with what I heard, but found that on certain particulary deep bass recordings the bass could be overbearing. ( BTW, the Neats are about about 5 feet apart and 1-1.5 feet awat from the rear wall). After reading praise about Fraim chips on the forum, I decided to invest in a set and this helped quite alot in reducing the bass boom to tolerable levels , whilst opening up the treble/mid and making the speakers sounding faster. Only the deepest of bass tracks caused a problem e.g dance music seismic bass, but otherwise I was a happy bunny.
Upgraditus took hold and I went on a rather crazy spending spree resulting in a CDS3/252 and then the 300. I could'nt resist some ex-demo deals up for grabs, although of course I bought my CDS3 from my local dealer.
Everything was just getting better and better until I got the 300, which has sadly tipped the balance of the sound of the set up into overpowering bass mode again, only to a greater extent this time. The bass except on (60's/70's recordings) is dominating to such an extent, that the treble/mid are sounding sat upon and slowed down, that I'm not in a position to judge the merits of the 300.
Unfortunately I am not in a position to move the speakers back/forwards/sideways/toe in to any great degree ( there is a TV in the middle), as I just haven't got the room to play with. I've tried paving slabs and they did'nt work for me, (the Fraim chips did ),nor can I go down the seperate mains spur route. I'm certain its a room/speaker interface problem, which has always existed to some extent, but which I have just pushed to the limits.
Ok this is where you good people come in, as I see myself having 3 options :-
1. Persevere with the MF5's and try custom made Mana Soundbases under them. I've heard the Mana's can be very useful in tightening up the bass, as I suspect my suspended wooden floor is the culprit. Perhaps getting the speaker off the suspended floor, could help tame the problem. Fraim chips did help before and surely the Mana's with their greater isloation/decoupling could help to a greater extent. I don't want the Mana to alter the sound in any way, merely tame the bass.
2. Keep the 300 and move down a level to the standmount Neat Ultimatum MFS. I would of course make sure I get a home demo of the Neats , as I know the MFS is still capable of substantial bass. MFS users out there- how do they sound in a small room (13x12 ) and do they boom at all in the deepest bass. I would love to get a listen.
3. Change the 300 for a new style 250 and keep the MF5's.
What do you think sounds the best option of these 3 suggestions ? I love the MF5's and Neat Ultimatums as a whole. They have fantastic PR & T, are involving,detailed and soundstage really well. I really would like to keep the MF5's as they have fantastic bass and scale, but if the MFS's are really a better balance in my front room, then so be it.