Tomorrow is the future...
It's funny how the boat anchor analogy seems to come up again and again by people. But I think weight is somewhat of an indicator of what is inside of an AVR. I think a large transformer and large capacitrs are still used to provide decent current. Just look at the higher dollar Elite receivers now running the ICE amps. They still weigh 40 lbs plus. I wonder why???
Thank you very much for the provided pictures from your posts.
The most expensive part of a receiver is the transformer(s), then the heat sink(s), and the capacitors. Remember the Marantz SR-18EX and SR-14EX, with their two big caps, 56,000uF each capacitance? And the Denon AVR-5805ci with four big caps, 33,000uF each?
I don't know if you notice, but all the flagship receivers from all manufacturers, have double side walls that are quite heavy, internal braces, ticker steel tops, and some of them with thick aluminum face plates. (Some manufacturers use the face plate as a noise stopper.) Not mentioning the heavy weight of the transformer(s) and the heat sink(s).
Marantz use the bottom plate as a heat sink is some of their receivers.
Some transformers are over 40 pounds and more.
Some Cinepro amps have 3 kva transformer(s).
How much do you think one of these weights?
It is interesting too, noting the Pioneer Elite SC-05 and SC-07 are weighting just over 40 pounds each, with class D ICE amps. That's the same weight as the Denon AVR-4308ci with class A/B amps, same power rating as the SC-07.
Also, the Yamaha RX-Z7 with class A/B amps is 40.5 pounds, again same rating.
And the Marantz SR8002 (quite powerful receiver) is only 33 pounds.
And the Onkyo TX-NR906 again with class A/B amps and same rating, well 145 watts per channel (only 5 more), weights 54 pounds.
And some class D amps are very light (Rotel for example).
Yep, it is interesting to note the changements happening in the newer receivers compared to their previous models. But we live in the world of HDMI and room EQ, plus Ethernet and Internet, World radios (HD, XM, XMHD, Sirius, Internet...), USBs (MP3/WMA/WAV/Photo/music), FLAC, iPods, Gennum, Silicon Optix HQV Realta, HQV Reon, VRS ABT, Marvell Qdeo, PHD4, Faroudja DCDI, Network, Web browser, Wi-Fi networking, Netflix, BD-Live, AVCHD, GUI, standing wave reduction, phase correctors, time compensation, frequency anomalies, spatializers, distance adjustment, MPEG-4, XMB, transcoders, upscalers, downscalers, converters, downconverters, processors, compressors, parametric EQ, graphical EQ, Audyssey, DSD, LPCM, SACD, HDCD, YPAO, MCACC, SARS, MRAC, Net/PC/Mac audio via Ethernet, Web servers, DLNA, 12 V triggers, RS-232C, DSP, CEC, RIHD, xvYCC, Lip Sync, MIC, IR, Zones (M/2/3/4/5), 4:3, 16:9, 24fps, 30fps, 60fps, 48hz, 72hz, 96hz, 192hz, 248hz, 480hz, Dialog Lift, DRC, Bi-amp, Bridge, Macros, Scenes, Straight, Direct, Pure direct, 3D, HD3, Silent Cinema, Dolby headphone, Deinterlacing, Upconversion, MusicCast, Music server, Interface, and tons of other related features to the computer world and video high resolution with frame rate higher and more pixels.
Next is HDMI version 1.4, and Super High Resolution display of 4k.
And later on, Ultra High Resolution of 10k.
By the time Extreme High Resolution display of 20k hit the market, we'll be probably all dead. Or if not, certainly at 100k!
LOTR