Koetsu black, lacking bass


Greetings 
i just installed a new koetsu black cartridge. I love the clarity of this cartridge. I was using a lyra kleos , which is a great cartridge but the clarity of the koetsu black is at another level.
does anyone know if the black cart is light in the bass? It seems to me that  the bass sound of my system has diminished with the koetsu. Is this a break-in characteristic? I should mention that I installed a furutech gtx outlet which is still in the break-in phase. I’m using a clearaudio magnify tonearm with a clearaudio performance tt. My preamp is a McIntosh mp1000 with acoustic zen ic cables. Mcintosh ma252 amplifier, focal aria 948 speakers with transparent super speaker cable. Any insight and knowledge would be helpful and appreciated!
thank you
dpoud
OP PM'd me, sounds like it was indeed the brand new Furutech outlet after all.

Love my Koetsu Black Goldline. But what I know now, lusting to get the best Soundsmith MI I can afford onto my Conqueror. Hyperion would be a stretch but you never know....
Great stuff, Miller
A prime example of why one should never change more than one item at a time as it makes it much more difficult to define what item had what change, good or bad.
If the Furutech outlets are anything like the SR Blue outlets they will require a fair amount of time to burn in and settle down so may just have to live with it and persevere for a while.
I believe the Furutech outlet is rhodium plated which can sound somewhat thin and chromy. I tried their rhodium fuse and did not like it. 
dpoud OP
Koetsu black, lacking bass, does anyone know if the black cart is light in the bass?
They were never bass light, as they were even better than the Supex SD900/1000 in the bass, and they were considered to be bass masters and almost up there with Decca London Gold’s.

Sorry if I’m repeating someone.
If all your alignments are right and your arm/cartridge mass resonant frequency is correct
Look at your arm height, is it "higher at the back" when playing a record, (arm not parallel to the record) this is a classic bass killer if it is. As your VTA is out the window.

Cheers George