t recently purchased the Reference+ and, it functions as advertised for my setup. The clarity, soundstage and dynamics were well above my previous LTA Ultralinear amplifier's capability. The Reference+ has an uncanny combination of detail and musicality that produces a very satisfying and non-fatiguing experience. I had auditioned the Ultralinear+ vs the Reference+ for about two hours and decided upon the Reference+. For sure the EL34s won me over - fantastic mid-range. In my setup which includes Tekton Double Impact speakers - I can crank up the sound and pretend I am in Blues Alley. Huge thanks to Mark Schneider and the LTA crew for another transformative product.
LTA ZOTL40 Reference+ Amplifier
Linear Tube Audio ZOTL40 REFERENCE+ AMPLIFIER is up on their web site. The sound is incredible. If you thought it couldn’t get any better then you were wrong. Contact Nicholas
https://www.lineartubeaudio.com/products/zotl-40-reference-amplifier