Does anybody care about Ohms and Watt? Where are the specs for these speakers?

Their sensitivity of 96dB with 2.83V at 1 meter is what most distinguishes these Kliosch RP-600M from the majority of loudspeakers. 2.83V into 8 Ohms = 1 Watt, so the factory sensitivity spec is the same as saying 96 dB into 1W at 1 meter. The thing to understand is that each 3dB equates to a doubling of sound pressure level. So a speaker with 96dB sensitivity will deliver twice the volume of a speaker with 93dB sensitivity or four times the volume of a speaker with 90dB sensitivity - for any given amount of Watts coming from your amplifier, at ang given listening distance. The Definitive Technology SM45 bookshelf speakers (https://www.amazon.com/gp/product/B005XXMMG4) have a sensitivity of 90dB, thus requiring four times as much power to achieve the same SPL (sound pressure level) at any given disrance, compared to the 96dB Klipsch RP-600M. Generally speaking, inefficient (low sensitivity) loudspeakers matched with high powered (yet still low distortion) amplifiers sound better than efficient speakers with proportionately lower powered amps, but it's easier and less expensive to design a low-distortion amp having less power, than it is to design a high powered amp that still has a low THD+N. Therefore, in my opinion, the reason these Kliosch RP-600M sound so good to so many people is... most peopke are using inexpensive, relatively low-powered receivers or integrated amps that nevertheless have *enough* power to tightly control the power-hungry bass frequencies, especially, but also tightening up the mids, resolving more detail, if the DAC is decent, which improves soundstage and imaging. In short, these speakers are so efficient, they make cheap amps sound good, but having borrowed a friend's pair for awhile, I prefer my DefTech SM45 when powered with a boutique Class D amp, not sold by Amazon. My friend drives his Klipsch RP-600M with the low-powered Reisong A10 tube amp, which I must admit, sounds very musical, taking the edge off the treble a bit, for enjoyable fatigue-free listening. (https://www.amazon.com/dp/B07L4GL63N/)

I have a Sansui G-6000, 65 watts per channel. I would work well with these speakers?

I don't want to get into an argument on this forum (tastes differ!) but it depends on what you're planning to listen to. If you're listening to music in stereo, your Sansui will be sweeter than virtually anything you can buy today for less than $1K (probably more than that). Vintage stereo receivers from that era (Sansui, Marantz, Pioneer, Harman Kardon, Luxman, etc.) were well built and serious about audio quality. The 65 watts they specify are 'old school' watts - a conservative estimate based on both channels driven at 8 ohm 50 - 20,000 hz with minimal distortion. Most modern receivers (particularly AVR receivers) grossly overstate their power capabilities and will distort far earlier. That having been said these speakers are very efficient so your Sansui (and a modern AVR receiver) will have way more power than you need and should drive them with ease. If you purchase a new AVR receiver I'd be interested to hear your opinion on which sounds the better - the new one or your Sansui. Assuming the Sansui's components are not in need of a refresh I know which one I'd pick! (It also has an excellent phono section). If you're doing surround sound and home theater then ignore everything above.

Can these be used as desktop speakers? I have a very large L-shaped desk (almost 4 feet deep at the L).

Yes you can, but why? These speakers need a little room to breath. They sound their best 1 1/2-2 feet from the wall. Why would anyone want to tame these beasts? They will kick like a mule of put in the right listening position as well as just great sound reproduction. They sound as good or better than most tower speakers I've heard. You wouldn't buy a Ferrari and only take it out in residential neighborhoods at 35-40 miles an hour. Let them stretch their legs so to speak.

Mounting Type	Freestanding
Material	Wood
Model Name	RP-600M
Speaker Type	Bookshelf, Woofer
Special Feature	Bass Boost, Hi Res Audio
Recommended Uses For Product	Construction
Compatible Devices	Laptop, PC, Smartphone, Tablet
Subwoofer Diameter	6.5 Inches
Surround Sound Channel Configuration	2.0
Color	ebony
Included Components	Standard
Product Dimensions	9D x 7.8W x 14H cm
Item Weight	7.3 kg
Impedance	8 Ohms
Is Waterproof	False
Number of Items	1
Control Method	Remote
Speaker Size	6.5 Inches
Power Source	Corded Electric
Audio Sensitivity	962831 Decibels
Batteries Required	No
Battery Average Life	1 days
Frequency Response Curve	45 Hz - 25,000 Hz
Item Shape	Rectangle prism
Speaker Count	2
Manufacturer	Klipsch
Item Model Number	1065804
Model Year	2018
Output Wattage	100 Watts
Wattage	100 W

RP-600M Reference Premiere Bookshelf Speakers - Pair (Ebony)

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