Vienna Acoustics Bach Grand


I'm currently demo'ing a pair of these speakers in my home. It's seeming as if there's a bit of muddiness in the mid-bass. From anybody whose heard these speakers, is this something that could be a function of how much power I'm giving it? I'm using an HK AVR125, rated at 45 w/ch. Highs and midrange seem just fine, in fact it sounds great. Its just when I play something a bit denser, such as Dave Matthews Band or even some of Sting's more recent albums, that I'm finding this type of performance. I don't listen to anything much harder, but if I ever do, I would imagine it would only exacerbate the issue.

I was expecting something a bit more, but wondering if it's the fault of my equipment rather than the speaker. My old speakers were three-way, so I'm wondering if I might need a speaker with a dedicated midrange plus woofer to get me the sound I'm wanting?
murz
I have pairs of the bach grand and mozart grands that I bought when Best Buy dropped the line back in 2011.  In my experience these are very setup dependent speakers.  The small drivers mean there isn't a lot of punch and the surprisingly deep bass they produce is coming from the ports.  I'm currently using the Mozarts as computer speakers with an old Creek 5350SE and Cambridge dac magic.  This is a great combination and I find the bass very satisfying nearfield. 

When I had these same speakers set up in a much larger living room that was fairly reflective I thought they sounded downright bad.  No punch and they sounded overly colored and just weird in there.  My Thiel 2 2s sounded a million times better. 

I've been told that these are designed with the European market in mind and that in Europe, rooms tend to be smaller and construction tends to be more solid so the bass reinforcement of the room can be made to work with these speakers rather than against them.  I had them set up in a small bedroom at one time and I thought they sounded great in there as well. 

In my opinion these speakers are fine in smaller rooms or nearfield and they are probably fine in some larger rooms if you aren't listening to music where punch and bass resolution are very important.  They're nice with vocals, maybe classical where what bass there is tends to be slow to build and slow to decay. 

The differences between the Bach grand and mozart grand are mainly that the mozart uses a little bit better tweeter so it's a bit more resolving and the mozart goes a little lower before the bass starts to sound mushy and slow.  That seems to be the most noticeable difference with this line.  They all go surprisingly deep in the bass for their size but as you move up the line the quality of the bass remains higher to progressively lower frequencies. 
This is a very interesting fact. :)
I bought a used pair of VA Bach grand...in good condition. I still have the boxes in the attic this day. Different batch with no close serial number... well not that would matter but some people go crazy in having consecutive serial numbers!
Anyhow. Was my first big investment... and from the beginning those Bach Grand sounded sooo good. I couldn’t believe it how clean and with a such beautiful stage ... perfectly balanced. It is hard to explain how clean ...I was leaving in an apartment at the time. So, end up moving at the house and... the moment Best Buy ended the contract with Vienna Acoustics and signed with B&W ...I had the chance to buy new Mozart Grand! And I said well...I’ll use the Mozart in front for audio listenings and have the Bach as rear speakers. Well fast forward after tests and tests and tests... I was puzzled and did not want to accept there is not a big improvement in having Mozart !
so I ended up buying monoblocks expensive amplifiers with a nice preamp... because everybody mentioned Mozart are power hungry etc. and have Mozart Grand installed just for music audition. 
Long story short... till this day! No matter the amplifier used I am amazed how well and clean the Bach sounds. It’s unbilivible. Bach is such well designed. It sounded excellent in apartment...in house ...in different rooms... Mozart has indeed a bigger stage I don’t want to say they are not good... they definetly sound bigger... have a more of the extension ...but that’s about it... sometimes I believe Bach Grand has the perfect 2 drivers... very simple end effective... clean accurate sound. Mozart sounds large but till this day I am not convinced the upgrade for music auditions was worth it. I have Mozart placed in different room driven by a way more expensive amplifier and preamp... and than find myself in front of the Bach where the tv is... and play some audio cds, close my eyes and smiling and amazed how good they are, better than Mozart!?! It’s unbelieveble. 

Helloi'm using an old VA Joker, an ancestor of the VA Mozart, i think they are 20 years old. They sound in my little music room (13sqm) and it is fantastic, very fine bass, a vey good stage and exciting music.