See the Vinnie Rossi L2i ‘Signature Edition’ Integrated Amplifier link below:
https://www.vinnierossi.com/l2-se-integrated-amplifier/
"The L2i-SE is our response to “what if?” What if we could combine our L2 Signature Preamplifier and L2 Signature Monoblocks into one chassis but with absolutely minimal concessions to design and performance? Could we still offer all the flexibility, build quality and stunning appearance to truly stand in a class of its own? The L2i-SE is Vinnie Rossi’s realization of that dream.Unlike the L2 Integrated Amplifier (L2i), which runs a simpler 6SN7 linestage, the L2i-SE inherits from our L2 Signature Preamplifier the direct-heated big power triodes. Only one pair of the finest sounding 4-pin, directly heated triodes (DHT) are run in a dual-mono, class-A, grounded-grid topology with zero feedback. They feed a true dual-mono, high-bandwidth class-AB MOSFET output stage making the L2i-SE a DHT hybrid integrated amplifier and likely the only one of its kind in the world! L2i-SE Features (Linestage)
I heard the Vinnie Rossi L2i ‘Signature Edition’ Integrated Amplifier at THE Audio Show and it sounds excellent. I do not own the unit and suggest you give it a look. I think it has most of your requirements.
https://www.vinnierossi.com/l2-se-integrated-amplifier/
"The L2i-SE is our response to “what if?” What if we could combine our L2 Signature Preamplifier and L2 Signature Monoblocks into one chassis but with absolutely minimal concessions to design and performance? Could we still offer all the flexibility, build quality and stunning appearance to truly stand in a class of its own? The L2i-SE is Vinnie Rossi’s realization of that dream.Unlike the L2 Integrated Amplifier (L2i), which runs a simpler 6SN7 linestage, the L2i-SE inherits from our L2 Signature Preamplifier the direct-heated big power triodes. Only one pair of the finest sounding 4-pin, directly heated triodes (DHT) are run in a dual-mono, class-A, grounded-grid topology with zero feedback. They feed a true dual-mono, high-bandwidth class-AB MOSFET output stage making the L2i-SE a DHT hybrid integrated amplifier and likely the only one of its kind in the world! L2i-SE Features (Linestage)
- Vinnie Rossi’s latest Class-A, ultra wide bandwidth directly heated triode (DHT) preamplifier design, compatible with: 2A3, 45, 300B, PX4, 101D, 205D, and SV811 DHT families with one-switch filament voltage selection
- Dual-mono layout using multiple patented Belleson super regulators for ultra-quiet linear voltage regulation of the triodes, and the (optional) L2 DAC and L2 Phonostage modules
- Discrete, 64-step resistor ladder volume control using Pickering England silent signal relays
- True active balanced (XLR) and single-ended (RCA) line level inputs and preamplifier outputs
- Internal “DHT bypass mode” switches (replaces DHT stage with a Class-A JFET stage)
- Yamamoto solid Teflon UX-4 tube sockets
- Mesh tube covers for added noise shielding and tube protection
- Included tubes: EH300B Gold-Grid (matched pair)
- Full-function aluminum remote control handset".
I heard the Vinnie Rossi L2i ‘Signature Edition’ Integrated Amplifier at THE Audio Show and it sounds excellent. I do not own the unit and suggest you give it a look. I think it has most of your requirements.