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Question: Have pc351 center. Should I match it with the P153 as both have 5.25 speakers or would it be better to go to the P163's?
Document: I was initially wanting the P163s for my rear surround, but I caught a pair of these from Electronics Expo for a third of the list price as open-box and couldn't pass them by at that price!Overall, I am happy with these for the price. They sound pretty good, but unless you are getting them for less than a third of list, I would pay a little more and go with the P163s since they have much better reviews and more power.Overall great value!
These match my floor standing and center Infinity Primus speakers. They are replacing an old pair of Boston Acoustics, and are doing a fine job. Excellent value.
I did a pretty thorough job of scouring the marketplace for quality bookshelf speakers under $300/pr. Needing to limit size somewhat, the 5" 2-way designs were about as large as I could take, even though I would have preferred a 6" or even 8" 2-way.
Nearly all retailers have their speakers in huge noisy spaces where meaningful A/B comparisons are impossible. For a serious audio purchase, I visit the audio salons in the LA area, some requiring appointments, but this level of effort was not needed here. A better alternative was to visit the local "music store", which usually have a small selection of quality near-field monitor speakers for the home/project studio market. I would have done this, except . . . .
I would also add that any 2-way I have heard strives to produce full sound over the entire audio range and fails- unless EQ'd or supplemented by a subwoofer or a superior 3-way center channel- the uneven sound is noticeable to a serious listener.
good sound and not any problemsRunning with Infinity Primus 2x P363, 2x PS38, 2x P153 2x P163BX 1x PC351. Powered by a Sony 7.2 system. Good sound yet not as loud as one would think meaning you just need to turn it up more so I cant truly consider that a reason to mark it down.
My Boston Acoustic A40 bookshelf speakers had finally disintegrated and I needed to replace them. First I tried a pair of Polk speakers but had to return them:  the sound was thin and irritating. After doing some more research I ordered the Infinity Primus P153 speakers from Amazon. They are great:  the sound is full and rich and enjoyable. I strongly recommend these speakers.
Then, the following Friday they had the Infinity P153 at 35% of MSRP! So I bought them also and was able to A/B compare in my office, with an 8" sub to augment the lows that both speakers lack. What fun!In terms of accuracy, the Polk's won out due to their more extended low end and flatter response overall. However they did not elicit the emotional involvement I normally experience with my favorite music.
For my near-field application I sought two-way, ported speakers and researched various brands and models before deciding to purchase the Infinity Primus P153. My experience with them is that they are a bit "boxy" sounding at first. That is to say that there is a bit too much midrange.I found a little tweaking of EQ on an amplifier level takes care of this issue to result in fairly flat and dynamic sounding speakers.
Bought these for the rear channel and they sound great. Clear reproduction of the music, and go great with the Infinity floor tower speakers. I'm driving them with a 7.2 channel Yamaha receiver pushing about 105 watts per channel. My sub is also 250 watt powered Infinity. For the price these are great speakers. I've run sound in a large church for 9 years so I know something about it.
Answer: If space is not a problem I would go with the 163's. As far as sound and quality you will not notice a difference even if you had both units . either one you chose, they are great speakers !