Speaker impedance and frequency response ?

8 Ohms each, 60 - 24,000 Hz response but without a decibel variation or a response curve that is meaningless. They do say the -3db useful low end is 65 Hz. Over all it is a good value for use in a small room like a small bedroom or computer office say about 10' x 10'. I play mine with "loudness" on and have the bass turned up a bit to give a nice balanced sound on most material. These would obviously benefit from being paired with a subwoofer, but they are still adequate even without for normal listening. You'd have to spend at least double the money to get much better speakers. Note that oftentimes through the year, Amazon and Best Buy will have these on sale for about $49 for the pair, which is when I bought mine, so obviously THAT makes them an even better deal. I've compared a lot of small bookshelf speakers and to my ears, you'd have to get some Boston Acoustics at $250 for the pair to offer anything much better than these, but you may wish to compare them to others by Klipsch and JBL. But really, when I got them for $49 I was VERY happy with them and how they have grown on me after I broke them in for a few hours. Do be aware that playing them overly loud can result in some "noise" or "rattle" from pushing the little 5.25" woofer too hard. You just need to use some common sense and have realistic expectations for such small speakers in terms of volume.

Should I set this speaker to "Small" or to "Large" in my receiver? My Yamaha RX-V581 automatic calibration sets this to Large.

So this depends on your receiver. I realize this is an old question, but could be helpful for others. Many receivers have the speaker size selection and many newer (last several years) receivers may also allow you to tweak your crossover settings for each set of speakers. Basically, what that means is that if your sub crossover is set at 150 hz, you want your other speakers to pick up the frequency where the sub left off. So you would want your other speakers to "crossover" at 150 hz. This means that those speakers will play frequencies from 150 hz and higher. If you set your sub for 80 hz and your other speakers at 150 hz, you'll miss all of the sounds between 80 and 150. All that to say, if you set your speakers to small, you'll want to look in your receiver manual to see what the low frequency cut-off is so you know what to set your sub crossover at. This way, you won't lose part of your sound.

Do you need a receiver to use these? or can i just hook up to my tv?

I have seen TVs that have speaker outputs, but it's pretty rare. If your TV has those, they'd be labeled "External Speakers" or something like that. Otherwise you need a receiver or at least an amplifier.

Is this price for one speaker or the pair

Try to confirm: As of today 12/03/2021, the price list is $99.00 and in the title, it says: "single" and in "What in the box" says: 1 tower speaker. So this price is for 1 single speaker and not a pair of speakers. Is this correct?

Recommended Uses For Product	Home Theater
Surround Sound Channel Configuration	1.0
Item Weight	9.23 kg
Is Waterproof	False
Maximum Range	7 Meters
Control Method	Remote
Speaker Size	6.5 Inches
Batteries	1 Lithium Ion batteries required.
Item model number	T50
Is Discontinued By Manufacturer	No
Speaker Count	1
Output Wattage	150 Watts
Voltage	120240 Volts
Wattage	150 W

Polk Audio T50 Home Theater and Music Floor Standing Tower Speaker (Single, Black) by Polk Audio

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