Responses from maxwave

Temporary Down Sizing - Integrated Amp Recommendations
Why bother with all the gears  in a small space ?      
Linear power supply
Sound difference between High\Low Gain Setting when volume matched?
The lower output gives you more volume control.  Which is fine.  
Sound difference between High\Low Gain Setting when volume matched?
I would guess that the sound quality is the same. you choose the gain acording to the headphones or speakers ( easy or not to drive ) used and the output of the source.    
Audio Rack Opinions
Solid-Tech Radius Solo 4 with feet of silence https://www.solid-tech.net/radius/ https://www.solid-tech.net/feet-of-silence/  
What became of Mahgister?
He has never insulted anybody on this forum. I highly respect him.  
Yamaha rx-3800
May be ?   https://www.avforums.com/threads/yamaha-rx-v3800-owners-thread.630451/    
IPad Pro to preamp
https://www.amazon.com/AmazonBasics-3-5mm-2-Male-Adapter-Stereo/dp/B01D5H8JW0/ref=sr_1_1_sspa?crid=LRFTIGV9SL29&keywords=3.5mm+to+rca+adapter&qid=1661634027&sprefix=3.5mm+to+rca%2Caps%2C110&sr=8-1-spons&psc=1 https://ww... 
Whole House Surge Protection…recommendations!
Siemens and this product : https://www.se.com/us/en/work/products/explore/home-surge-protection/ were recommended to me by Dave from PI Audio Group It was 2 or 3 years ago ( Uber Buss power conditioner )  
sbooster upgrade for Lumin D2 worth it?
Lumin D2 has already an internal power supply. Is it possible to add an external power supply ?   if so , there is one here for 350$  on Canuck Audio Mart https://www.canuckaudiomart.com/details/649888194-botw-s-booster-mkii-with-ultra-dongle... 
What is the best non-conditioning surge protector
Rotary mixer to single ended triode amp
Looking for a preamp with XLR connections
@hgeifman  I had mine ( Soulution 330 INT ) repaired ( 2 boards ) at Tricell Enteprises in  Toronto. It was under warranty . No charge . And frankly , I was responsable for  the issue. Tricell Enteprises ordered the boards from the company in ... 
Looking for a preamp with XLR connections
If you can extend a little bit Soulution 525 preamp. https://www.audiogon.com/listings/lisai07j-soulution-525-preamplifier-solid-state    
Connect speakers to my new Denon AVR-x4700H Receiver or to my Outlaw 7125 7-Channel Amp
Your Denon AVR  will probably run cooler if you use the pre outs. Denons  run rather hot and heat is not gear frendly. My 2 cents