Do I need a Y-adpater? A sound tech told me one sub wire would do the trick and just plug it into the L and ignore the R. Is this true?

You don’t “need” a y-adapter. It depends on your audio source. If you are using an audio/video receiver (like Yamaha/Denon/Kenwood etc) or a PC Sound card with a “sub out,” then that output already summed up the left and right channel’s bass frequencies (LFE) into one Mono output, and you can plug that into either RCA input on the PSW10 subwoofer. It’s also recommended to set the sub’s crossover dial as high as it will go (because the source will dictate the crossover point). Why then are there left and right RCA inputs on the sub, and a crossover dial? And Speaker binding posts? All of that is for using the sub as an amp to power (efficient) speakers. In that setup, you wire up the passive speakers into the subwoofer’s binding posts, plug the L&R RCA inputs into your TV or other source’s RCA outputs, set the crossover somewhere just above the speaker’s lowest part of their rated frequency response range (if you don’t know, I think 120 Hz is a good guess), and then the volume dial controls both the speakers and the sub (you can’t independently control the balance of bass to mids/treble). The sound quality like this is… not great. But if you need the option, at least it works?

Can this sub be added to a Vizio 2.0 sound bar, for small to medium-sized HDTV's? If not, what should I get? For TV/Games/Music

Like John, I too have a Vizio 2.0 sound bar and this pairs very well. I have a small theater room (10 x 20) and this one 10" fills the room. This sub is the best bang for the buck you can get.

Does this speaker have a volume control? Thanks.

Yes, it has a volume control. If you have an integrated amp or audio-video receiver (AVR), then you plug the speakers into that, and this sub into the sub-out, and use the AVR or amp to set the bass crossover point (and turn up the dial on the sub’s crossover so that you don’t have a “hole” between where you set the sub’s limit and the amp’s low frequency output). In this configuration, you can boost or decrease the bass emphasis by turning the volume dial on the back of the sub. In the fringe case that you don’t have a speaker amp, you can connect (efficient) passive speakers to the binding posts on the back of the subwoofer, and control the crossover and volume of the system from the dials on the back of the subwoofer. As you can imagine from a $200 subwoofer (I got this same model for half that), the amp in the sub for speakers is… not great. But it exists.

What in your opinion is the best power setting for normal use, "on" or "auto" for this unit.

I use the "ON" power setting because the Sub and my Receiver are plugged into a smart surge power strip. When the Receiver turns on/off so does the Sub. No wasted power.

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Description

🎶 Elevate your sound game with bass that speaks volumes!

COMPACT YET MIGHTY - Non-resonant cabinet design packs big bass in a space-saving footprint perfect for any room.
POWERFUL AMPLIFICATION - 50W RMS with 100W dynamic power ensures impactful sound that commands attention.
DEEP ROOM FILLING BASS - 10-inch polymer composite driver delivers rich, distortion-free low frequencies.
EFFORTLESS CONNECTIVITY - Line and speaker level inputs/outputs with included RCA and speaker cables for plug-and-play setup.
CUSTOMIZABLE SOUND INTEGRATION - Rotary control and variable low-pass filter (80-160Hz) for seamless home theater blending.

The Polk Audio PSW10 is a compact powered subwoofer featuring a 10-inch polymer composite dynamic balance cone driver, delivering deep, smooth bass with minimal distortion. Powered by a 50W RMS (100W peak) amplifier, it offers adjustable low-pass filtering (80-160Hz) and rotary volume control for perfect integration into any home audio or theater system. Its non-resonant cabinet and versatile connectivity options make it an ideal choice for professionals seeking powerful, precise bass in a sleek, space-conscious design.

Specifications

Speaker Type	Subwoofer
Special Feature	Surround Sound
Recommended Uses For Product	Musical
Compatible Devices	Television
Subwoofer Diameter	10 Inches
Surround Sound Channel Configuration	1.0
Color	Black
Included Components	接続ケーブル(RCAまたはスピーカー)
Product Dimensions	43.2D x 36.2W x 36.8H cm
Item Weight	11.8 Kilograms
Impedance	8 Ohm
Is Waterproof	False
Number of Items	1
Control Method	Voice
Speaker Size	10 Inches
Item model number	AM1055-C
Is Discontinued By Manufacturer	No
Color Name	Black
Output Wattage	50 Watts
Size	36.51 x 35.56 x 40.96cm
Standing screen display size	1 Inches
Voltage	220 Volts
Wattage	100 W

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