System Plateau - Ideas?


The last time I plateau’d was
Rega RP6 (Ortofon Black) > Musical Surroundings Nova II > Line Magnetic 518ia > DeVore O/93 

2 changes, more recently:
1. Switched amplification to
DeHavilland Ultraverve III (Dueland Special) > FirstWatt Aleph J
2. Also replaced Ortofon Black with a Hana ML.

Overall very nice, but I feel I’m missing a bit of “edge”.
One direction I’ve been leaning is single driver (researching Omega). Another direction would be rethinking amplification. Has anyone plateau’d here? What did you try?

Of course, everything sounds perfectly fine as is :)

Cheers,
John
dotchaos
I have the LM805 and use Devore O/96's, so pretty close your original setup.  Replacing the stock 805 tubes with NOS RCAs was an incredible upgrade.  Just curious if you rolled the power and 300B tubes in your LM amp?
not sure about the DeHavilland preamp you have with the Dueland upgrades  has the volume control been upgraded?  AC filter choke?  Resistors upgraded?  The one I upgraded a few months back sounded excellent once those upgrades were performed.  IMO the First Watt is nothing special at all.  I built a clone of it using point-to-point wiring and better capacitors and resistors and that kicked its butt big time.

Other than that, your system should provide you with much happiness.

Happy Listening.
I have an all Linn Akurate/Sondek/Keilidh Aktiv system in my living room, but spend more time in my basement office with a Knight Kit KA-40 32W tube amp (which my Dad originally built in 1960), Smaller Advents, Apogee Duet, Apple Music.

Smaller Advents were my first hi-fi purchase in 1973, along with a Dynaco SCA-80Q kit and AR XB with Stanton 681EEE. Most would scoff...

The Knight/Advent system is so much fun to listen to, involving, intimate, subtle.

My advice to all: enjoy the music, forget the equipment.


@dotchaos
@decooney I won't let go of the FirstWatt, also won't let go of the Line Magnetic (at least until I can afford the 845 premium). I did take the LM as far as I could with tube selection, but didn't get to playing around with caps at all.

With a push from a few local mentors who've been doing this for 60+ years, they led me down a path that started with tube rolling and ended with high-end coupling caps on my last three tube amp setups, fwiw.  
op

as miller appropriately called out...  stating what you are trying to improve with the right words to convey your meaning precisely is all important here... as you can see from the fairly scatter shot replies you have received thus far