I've lost my bass....


Well, not all of it. My system is:

Arcam CD92
Marantz 2020 (Don Scott modified) Tuner
Conrad Johnson PV14
Conrad Johnson MV60
Audio Physic Virgo III
HT Pro 9 Interconnects
Synergistic Research Sig. 2 Speaker Cables

This is my first tube system and I love it. I had this system in a 15' x 23' room and I thought it was outstanding. Mids and highs were exceptional and bass was firm though clearly not registering the lowest octaves. I was OK with that.

Here's the problem. I needed to put my Home Theater system in the room where the stereo was and put the stereo where the home theater was. The furniture and carpeting was also switched at the same time. Now the stereo is in an "L" shaped room that is bigger than the previous one. As a result, the bass repsonse is not nearly as authoritative as it was in the smaller room (no surprise).

My question is, what can be done to improve bass response? Some issues I've thought of are:

1. Room treatment? What kind?
2. Try different tubes (FYI, MV60 is EL34 based amp)? Any suggestions?
3. Amp is underpowered?

I'm open to any ideas on how to improve bass response.

Thanks to all for any help.
Dave
milo

Showing 1 response by bhouser

You do not mention how far into the room the speakers are placed.

As mentioned above, positioning the speakers closer to the wall they back up to will allow the room itself to reinforce the bass response. But too close and things start to get muddy-sounding, as all speakers have different room interaction characteristics, so experimentation is your only option.

Heck, your listening position may actually be in a bass node itself - mine was, and I had to rearrange my entire great room (30'x20'x15' vaulted) to get out of the hole. I only found this out after spending big bucks replacing alot of gear, when my dealer measured my room response with a Real Time Analyzer (RTA). Taking full advantage of the room's shape and features in the best configuration made the single-biggest change in sound quality my system has experienced (and it was FREE!).

Also, Room Treatments CAN significantly affect bass response if you can figure out where to place the treatments to even-out the room modes, nodes and lull-points.

Rives.com and MichaelGreenAudio.com (among others) can help educate you on these principles. This is truly the 'black art' of the audiophile biz...and the only way to get the most out of the equipment that you have.

Hope that helps - good luck finding your bass....