This is a hard one. The B&W 804 Nautilus was an $3600.00 speaker back in the day. The 804 D now retails for $9K So the B&W 804 line may be way out of budget. The entry level B&W 600 series starts and $600.00 for a bookshelf so sticking with B&W will get pricey. I cannot recommend B&W product enough but if you wish to have them as a part of an HT system you will need to increase your budget significantly.
First off let us start with the budget for the receiver. Of the amount you want to spend how much of it do you want spend on it. $500.00, $700.00 or $900.00? In general the higher in price you go the receiver will have more powerful amp stages. I personally like an Receiver that have large peak to peak power capacity and can put out over 100 watts continuous for home theater use. But some less powerful units will work well depending on the efficiency of your speakers.
Some idea's: Caveat, I am by no means an ultimate authority here. There are those in this forum who are far, far, far more knowledgeable. Even so, despite the knowledge that exist here you are the ultimate authority on what you like so do some homework and listening. My goal here is to give some things to think about and explore. Final piece of advice do not get caught up in having to obtain the best of the best in others eyes buy what you like and HAVE FUN.
$500.00 plus
Denon AVR-S940H
7.2-channel home theater receiver with Wi-Fi®. Bluetooth®, Apple® AirPlay® 2, and Amazon Alexa compatibility
7-channel amplifier
90 watts per channel into 8 ohms (20-20,000 Hz) at 0.08% THD, with 2 channels driven
$650.00
Yamaha AVENTAGE RX-A780
7.2-channel home theater receiver with Wi-Fi®, Bluetooth®, and Amazon Alexa compatibility
Number Of Channels 7
Stereo RMS Power (watts) 95 THD in Stereo 0.06 % Frequency Bandwidth (stereo) 20-20k Hz
$900.00 on sale normally $1500.00 My personal choice I like the sound of Marantz products better than either Yamaha or Denon.
Marantz SR6012
9.2-channel home theater receiver with Wi-Fi®. Dolby Atmos®, Apple® AirPlay® 2, and HEOS
Number Of Channels 9
Stereo RMS Power (watts) 110 THD in Stereo 0.08 % Frequency Bandwidth (stereo) 20-20k Hz
Other options in $900.00 price point: This is where I think you should set your budget. I will explain later.
Yamaha AVENTAGE RX-A880
7.2-channel home theater receiver with Wi-Fi®, Bluetooth®, and Amazon Alexa compatibility
7-channel amplifier; 100 watts per channel with 2 channels driven
Dolby Atmos and DTS:X for more enveloping home theater sound
Marantz SR5013
7.2-channel home theater receiver with Wi-Fi®, Apple® AirPlay® 2, and Amazon Alexa compatibility
7-channel amplifier; 100 watts per channel with 2 channels driven
Dolby Atmos® and DTS:X™ for immersive surround sound
built-in HEOS technology offers internet music streaming and wireless whole home audio with compatible components
Speakers:
Here is where I am sure I am going to stir up some controversy. In the old days the formula was to budget 40% for components and 60% for speakers. I think this formula is outdated and needs to be reconsidered.
Speaker technology has made a lot of advances since the 60's and 70"s. Now days you can buy an overachieving $500 speaker that will be on par with a $1500 speaker produced 20 years ago. So the 40/60 formula no longer applies. Now days I spend less money on speakers and budget more for the component.
Hence the recomendation you budget $900.00 for the reciever.
Brands that I know overachieve and give high end sound for not a whole lot of money. To be sure, they are not in the same league as B&W, but have their own merits that makes them a good choice. They need not make any apologies for being budget friendly. They do not sound the same as B&W. However the sound quality of these speakers are on par with them.
Suggest you explore: SVS, RBH, Polk, Klipsch, Paradigm, and Golden Ear (I do not know anything about RSL)
$999.00
Prime Satellite 5.1 System
The Prime Satellite 5.1 Surround Sound System is a super compact home theater system with five massive sounding Prime Satellite speakers and the startlingly powerful SB-1000 Subwoofer. Punches way above its weight and size class to bring immersive surround sound home audio to any small-medium sized room.
WHATS INCLUDED?
Mains | Prime Satellite x 2
Surrounds | Prime Satellite x 2
Center | Prime Satellite
Subwoofer | SB-1000
I like this company and its products a lot. They blow a lot of systems away for not a whole lot of money. When I replace my current HT speaker setup these are on my short list.
Another brand I like a lot. is Goldenear.
https://www.goldenear.com/
A little more money than SVS but they have systems that put out lots of bass and clean articulate sound.
Thier powered speakers can get down and growl thus eliminating the need for an added sub.