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Question: I purchased Sony SS-B1000 5-1/4-Inch Bookshelf Speakers (Pair), would this amp work with it? and do I need anything else for it?
Document: I'm using most of the power of two 150W 12 inch subs to keep up with the SA50's and a proper signal and preamp. End result? Wow! Plenty of clean power in even this large room. Before finding this amp I would have used a pair of Crown amps spending close to 10 times as much.4. I've now tested this amp against the Topping 22 and Lepai using my own 192k/24 tracks from my studio workstation and a pair of NS10's and this is what I found.
I'd give the Topping the edge in accuracy but the SMSL is just warmer which some will prefer and almost half again louder, I've also tested it with 4 ohm speakers and can also add that the frequency response is relatively flat. Opinion...for power, price and size this amp may have no equal and I have to revise my rating to 5 stars. (But if you think I'm mistaken, let me know so I can buy another little amp!)
And the audio is clean and detailed in a more cohesive way than through the smaller Tripath amp. An absolute upgrade.Just as an aside, I have been into high end audio for decades now, have a dedicated audio room with an extremely accurate system that uses speaker wires that cost more than this amp. This amp clearly has its limitations, so trying to pair it with some better speakers or comparing it to a big amp like my tube amps would be unfair and illogical.
How about, "this amp exhibits fabulous hyperboreadynamism when pushing the speakers to their limit". Cool power.2. I've added the mighty Monoprice 8 inch sub ($59 with western US overnight delivery and $5 coupon) to this system and it balances well now requiring zero eq but not at full output. I'm using 2 RCA Y adaptersConnectorsout of a DVD player and cables to the amp and to the sub and by adjusting the amp volume it will increase or decrease mids and treble.
Which is why I guessed about 30 wpc and is huge compared to my guess of 8 for the Lepai or 12-15 for the Topping (all of these are educated guesses based on the incomplete data available, see images). With enough input signal this amp will deliver clean sound until most bookshelf speakers beg for mercy. Understand that to be twice as loud when changing amps it takes ten times the watts, all else being identical, so 30 wpc is not 3 times louder than 10 but quite noticeable.
I hope I'm not driving the price up, but I'm back for 2 more (six this month, Great Googly Mooglies!) because they'll be so easy to hide away where I'm using them. All of the amps have run 24/7 trouble free so far, guess I can't comment on the power switch. These will be used to power 4 KRK R6's on stands, which also make wonderful bookshelf speakers. ....I'm back to report on this setup.
I'm no audiophile or professional, so take this for what it's worth.I use this to power a pair of Energy CB-10s in my bedroom, not sure on the actual dimensions of the room, but somewhere between a broom closet and a master suite, no crazy high ceilings or anything like that. I couldn't be happier. Took it out of the box, plugged it in, ran the cables and then discovered that my tv only had a digital audio out.
I also tried out a Marantz 7k (95 dB, 2.8V @1M  / 4-8 ohm), these are full size floorstanders. The amp seemed to have no issue driving it too. Another plus is that it has no clicks, pops, or crackles when adjusting volume or turning it on/off with speakers connected, there is no channel imbalance at low volumes, and none of my speakers seemed to be struggled for power.
More power than I needed. turned up to higher volumes it clipped & started to distort. I blame the speakers more than the amp for that.. feels well made & the sound is clear. I ended up sending it back for one with less RMS output (same brand name-SMSL). It was too much power for my needs. Good product and I would buy again IF I needed something compact to drive larger speakers. I can see this thing easily pushing BIG speakers with little effort.
This is an good small amp with a tremendous amount of power considering how small it is, but if you're shopping for mini amps, you're likely comparing this to the two other big boys in this realm: The Topping TP20 mkII and the Lepai.Note: I'm using these amps with a pair of Polk Monitor 7 speakers.I started with the Lepai, as it's the gateway mini-amp for a lot of people. With a decent power supply (not the one it comes with), it's perfectly fine.
Answer: Yes.  I use this amp to power a pair of Infinity Optimus P163 speakers, which are honestly a little big for bookshelf speakers, but the amp works fine at normal listening volumes. If you like your music loud and need to drive bigger speakers you should consider a more conventional amplifier with more power, but for most bookshelf speakers this amp works. You will also need speaker wire to hook them up. This amp and most speakers accept the banana plug wire ends, which I recommend as well.