Kef 205/2


Good Morning All!

My setup consists of:

Kef 205/2
Mcintosh MC501's
Audio Research Ref 3
Fully Mod Primare CD31
PS Audio PPP (CD, Pre)
Shunyata Hydra 2 (Amps)
Nordost Quattro Fill CD to Pre
Nordost Red Dawn Pre to Amps
Nordost Red Dawn Bi-Wired Speaker cables
Analysis Plus Oval 9 Power Cords

My current issue with the above setup is that the Kef 205/2 produces very little bass comparing to my smaller system (in the same room with the same speakers positioning , etc) which consists of Dynaudio Focus 140 bookshelf, Cambridge Audio 740c and Meixing integrated tube amp (75w/ channel)! Due to the lack of bass, my main system seems to be brighter. I’ve tried to play the Kef on my smaller setup but the amp seems not to be to drive them.

Has anyone experience with the Kef205/2 or similar setup?
Can you please let me know how to improve the bass response?
I’ve tried with cables e.g. Chord Anthem, Cardas Golden Cross with mix result and ended with Nordost due to their high resolution. I do believe make differences but not substantially

Thanking you in advance for your advices
Primare_Cd31
primare_cd31

Showing 1 response by hififile

Hi Primare,
If you have your bass problem solved, groovy! If not, try the following.

Unplug one Kef205. Put your system in mono. Play test tracks from a test CD or test source (I use mac the scope/signal generator). Take a db meter and note the out put of the speaker at 100hz, 80hz, 63, 50, 40, 31.5, and 20. Make notes of the db readings. Now with out touching your volume control or settings, shut your amp off (Even though it is a MC501 a good idea), put your other speaker in the exact same position as the first speaker. Now run the exact same test and see if the speakers are matched or different. They may not be perfectly matched but they should be pretty close. You will be able to see if there is a speaker problem this way.

If your speakers are matched and playing low bass notes properly you can eliminate the speaker and move on to other issues such as positioning and placement. I have put a variety of speakers in the spot where my Merlins work best and the results were wildly different. In fact a very expensive set of Avalons sounded awful, yet positioned differently were amazing.

GOOD LUCK!!!!!!