SUMMARYAt $150 (at time of review), matched with quality components in a desktop set-up, or small to medium-size room, the R-41Ms are capable little performers. Adding a subwoofer though, puts them in audiophile territory, with their impressive sound stage and detail creating a truly immersive experience. I'm using the excellent 10" Sony SACS9 115W sub ($100), making this 2.1 speaker set-up, very hard to beat at only $250.AMPLIFIER/ROOM SIZEI have the R-41Ms in a desktop configuration in my video editing studio, which is 12' x 12', running from my Macbook Pro. I'm driving them with a Fosi TB10A, 100W, Class D stereo amplifier. For $70, this tiny, capable little amp with its famed TPA3116 chipset (an audio enthusiasts favorite), is a perfect companion for the R-41Ms.INTERCONNECTS AND SPEAKER WIREYou won't get the best performance out of these (or any) speakers if the components in their path are of insufficient quality to allow them to perform optimally. It can be an astonishing revelation, just upgrading to good quality interconnects and speaker wire. They are the bottleneck where sound stage, and vocals and instruments will either be allowed to breathe, or suffocate and die.There are many electrical properties with significant benefits claimed by their manufacturers (E.g. oxygen-free copper to combat cable oxidation) but the difference they make to the sound quality is rather undecided and often down to personal opinion. The most important consideration, is that your speaker wire gauge is suitable for the impedance of your speakers and the length of your wire. I'm using Crutchfield 16g speaker wire between the amp and speakers, and the thicker Crutchfield 14g wire between the speakers and subwoofer. Confusingly, speaker wire gets thinner the higher the gauge number it is. I use a dual-shielded, 3.5mm (aux) to 2RCA interconnect between the Macbook and Fosi amplifier. It's an 'Amazon Basics' product, and I find it be of excellent quality (around $10).FEATURES AND PERFORMANCEThe R-41Ms use a 4" copper-spun woofer and Klipsch's trademark, 1" horn-loaded, dome tweeter, used across the Reference Range. The tweeter definitely places higher frequencies in the more bright category, but with the treble control on the Fosi amp, I was able to dial it in to fit into a relatively well balanced low-mid-high mix.The woofer is well made, but is constrained by its size. While it performs well overall, it can struggle with the lower frequencies at medium to high volumes. Of course, a lot will depend on what you're playing through them. In a desktop set-up, with near field listening, you may find them to be more than adequate, but at the core of a home theater set up, or with bass heavy music like Travis Scott's, "Highest In The Room" or "Butterfly Effect," without a subwoofer, you're going to notice the R-41M's limitations pretty quickly, especially at higher volumes.While they're reasonably capable performers by themselves (with an amplifier, of course), and much better than most active speakers in the $100-$300 range, they're not particularly neutral or consistent. The Klipsch tweeter can be a blessing or a curse, depending what you're playing through them. The 4" woofer can sometimes cope admirably and other times really struggle, particularly at higher volumes. This makes for a varied experience depending on what you're playing through them and at what volume. The good thing, though, is that by simply adding a subwoofer, EVERYTHING changes. I use the excellent Sony SACS9 10" 115W sub ($100) and it's as though I can hear the R-41Ms saying, "Thank God you came to the party." This is where you experience neutrality and consistency across a wide variety of music, with an open sound stage and balanced detail across the lows, mids and highs. Crossover is the frequency where speakers begin to roll off and the subwoofer picks up and runs with the bass notes and low frequencies. I've found that the sweet spot for the crossover for the R-41Ms, is around 80 Hz, and that's where I've set my Sony sub.PRICE TO PERFORMANCEWithout a subwoofer, the R-41Ms are competent performers, as long as you use a quality interconnect, amp and speaker wire, and don't push them too hard, or expect too much low frequency response. However, it's when they are part of a balanced set-up to include a subwoofer, that the R-41Ms yield an impressive, immersive listening experience. They run loud and clear at a volume that apartment neighbors will not appreciate. In a studio/house, you can run them beyond being able to hold a conversation, and they easily justify their price. With my amp, speakers, sub, interconnect and good quality speaker wire, I have an audiophile system for less than $400.I hope this review helps you make an informed buying decision.