Question 1

do you have to have a sub out on youre amp to be able to use this?

Accepted Answer

No you can piggy back the audio out for the speakers
From the amp straight into the left. And right audio in on the sub

Question 2

Would i be able to use this subwoofer with my Yamaha rx v359 receiver. And how?

Accepted Answer

Hello!

In theory, you should be able to take a phono / single RCA cable from the subwoofer output on the back of your receiver and into left or right of the RCA/line input on the back of the sub. Some people opt for a male RCA which splits into two male RCA so that both left and right receive an input but I believe there’s not much advantage.

Question 3

Is it possible to connect my hi-fi via the 'speaker lvel inputs' and my tv sound bar using the 'line level inputs'. not to be played at the same time.

Accepted Answer

If I understand you correctly, yes you can, but you just need care in terms of what you use & when. Yes, you can connect your hi-fi to the sub, via the speaker connections(take care & observe polarity), AND your soundbar via the line-level inputs. 
So if you use your hi-fi(with the soundbar & TV off) then the sub'll work using the speaker level connections. Then, for your TV & soundbar(with your hi-fi off), the sub'll work using the line level(the RCA phono) connections. 
You'll then just need to match up the cross-over frequency and output level of your sub for the different hi-fi & TV/soundbar needs, as I doubt that they'll be the same for both needs. However, you might be able to get a compromise to suit the two types of systems, that'll save fiddling around.
Happy listening!

Question 4

Can i connect this to my denon dht-s216 soundbar? soundbar has a single " subwoofer out" connection

Accepted Answer

Yes, connect a 'Y' phono connector(*) from the Denon soundbar to the stereo inputs of the subwoofer. I guess the soundbar will output a mono signal in the subwoofer output, so even a single phono connector would work, but to ensure a better amplification use both phono inputs on the subwoofer. If set up correctly, you should get a rich, deep sounding low end to your experience. Enjoy!
(* ie. a single phono plug to 2 phono plugs)

ASIN	B0036E6ETI
Antenna Location	For smartphones or tablets
Audio Driver Size	25 Centimetres
Audio Driver Type	Dynamic Driver
Audio Output Mode	Surround
Best Sellers Rank	9,158 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 7 in Hi-Fi Subwoofers
Brand Name	Wharfedale
Colour	Walnut
Compatible Devices	Gaming Console
Connectivity Protocol	RCA
Control Method	Touch
Country of Origin	China
Customer Reviews	4.5 4.5 out of 5 stars (234)
Enclosure Material	Diamond
Is Waterproof	false
Item Weight	20 Kilograms
MP3 player	No
Maximum Speaker Output Power (in watts)	150 Watts
Model Name	SW150
Model Number	ASDF12
Mounting Type	Tabletop
Network Connectivity Technology	RCA
Number of Audio Channels	1.0
Number of Items	1
Power Source	Corded Electric
Product Features	Amplifier
Speaker Size	360 Millimetres
Speaker Type	Subwoofer
Specific Uses For Product	home entertainment systems
Subwoofer Connectivity Technology	Wired
Subwoofer Speaker Diameter	360 Millimetres
Tweeter Diameter	1 Inches
Warranty Type	Full Warranty
Wireless Technology Type	No Wireless Communication Technology
Woofer Driver Diameter	10 Inches

– Diamond SW150 Subwoofer (Walnut)

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