Question 1

I tried adding a powered subwoofer to these speakers using the 'sub out' but no sound from the sub. Any ideas?

Accepted Answer

Hi there,

In regards to this issue you would have to eliminate the fault from all sources in the chain.

I would say check your cable to make sure the cable is not a directional cable (if it is set it the correct way), make sure everything is turned on and the crossover on your subwoofer is not set to the minimum. If your sub still is producing no sound it could either be that the cable has a fault, the sub has a fault or the VA4 have a fault.

If you have the cable connected to the subwoofer I would suggest having the sub at a low level and just tap the end of the subwoofer lead to see if there is a hum. If there is not a hum the fault would be with the lead or the sub. If there is a hum then the fault would be with the VA4.

To see if it is the cable I would try a different lead and if you are still experiencing issues I would try using the lead with the RA4 RCA inputs  and try tapping the lead to see if you are getting a hum. If you are getting a hum then the cable will have no fault and this would leave the fault with the subwoofer.

Which Ever is at fault I would suggest contacting the dealer who you purchased the product off and get them to confirm the fault and get the product back for repair. 
 
Best regards,
Hifix.

Question 2

I can hear an electrical tapping noise in bluetooth mode, similar to electrical interference. Are mine faulty or is this common?

Accepted Answer

Could be faulty or maybe it actually is picking up interference from something near by. Try moving it to another location, if it still occurs, send it back. Mine is very clear on all inputs I have tried  (BT, OPT & RCA)

Question 3

Hi, can I connect a powered hifi to these speakers?

Accepted Answer

These speakers are active so only require a "line level" signal source. The output of an amplifier is too high for the input to these speakers.  Look at the terminals on the back of your hi-fi which you want to connect to these and if it says something like "Speaker impedance 4-16 ohms" then these speakers cannot be used as they will be damaged.

Question 4

what are the dimensions and what cables are provided please.

Accepted Answer

They come with power cables and the speaker cable to connect both speakers. SIZE H 220mm W 140mm D170mm (each speaker) - Do Good Audio

Roth Audio VA4 Pair of Active Speakers (Red)

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