The topic of using “Separates” vs. AVR is extremely popular. It seems like we see a new thread on this topic almost every week. Many people have asked, “Should I buy an AVR or a Pre-pro?”\n\nMany of us have used a variety of components through the years including Integrated Amplifiers, Preamplifiers, Amplifiers, Audio-Video Receivers (AVR),Surround-Sound Processors, Preamplifier-Processors (Pre-Pro). And with the recent introduction of the AVC-8500 in Europe, Denon now has the world’s first 13.2Ch Audio-Video-Controller (AVC). Yes, just remove the AM\/FM Tuner section of the AVR, and we get the AVC, which I guess qualifies the AVC-8500 to some people as a “separates component”, instead of the lowly AVR.\n\nI think many audiophiles\/enthusiast only consider “separates” as high fidelity or Hi-Fi audio; they often sneer at AVR and deem AVR only appropriate for the mass-market folks who think Bose is official speaker of the world.\n\nWhy do you use Separates?\n\nDo AVRs have enough power for most speakers and rooms?\n\nDo AVRs sound inferior to Separates because Separates have better measurements?\n\nAre AVRs more prone to obsolescence?\n\nAre $3,000 AVRs more prone to malfunction than $3,000 Pre-pros ?\n\nWhat constitutes a “Separates”? Is the new Mark Levinson Integrated Amplifier with DAC and USB connections really a “Separates”?\n\nSince we have a thread for everything, I thought of starting an official thread just for this extremely popular topic. After all, I can’t let <Eargiant have all the fun starting a new thread every week!\n\nI got these measurements from S&V Magazine:\n\nAudioControl M9 $9,000 Pre-pro:\nFR +0.04dB@ 20Hz, -0.03dB @ 20kHz\nSNR: 118dBA\nTHD: 0.02%\n\nDenon AVR-3400 $1000 AVR:\nFR -0.01dB@ 20Hz, +0.1dB @ 20kHz\nSNR: 110dBA\nTHD: 0.004%\n\nJust looking at these S&V measurements, the Denon X3400 (which some people are paying $550 brand new) doesn’t look all that different than a $9,000 AudioControl Pre-pro. Are any of these measured specs even audible and worth losing sleep over?\n\nHere are some more lab measurements from AVTech Miller Audio Research.\n\nDenon AVR-3805:\nDynamic Power Output into 1 ohms: 170W (1%THD) x 2 Ch\nhttp:\/\/www.milleraudioresearch.com\/download\/reports\/aug04\/denonavr3805.html\n\nArcam P1 Monoblock Amp:\nDynamic Power Output into 1 ohms: 46W (2%THD)\nhttp:\/\/www.milleraudioresearch.com\/download\/reports\/nov04\/arcamp1.html\n\nIt seems like the lowly Denon AVR can output even more power than an Arcam Monoblock Amp. Wow! 170W into 1-ohm at 1% THD vs. 46W at twice the THD! How is that possible? An AVR can output 170-dynamic watts into 1-ohm? \n\nFor people trying to decide between AVR vs. Separates, what are your thoughts and what advice do you have?