audionoob3223
CarAudio.com Newbie
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Have i messed up ?
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Nope, you're okay.
What is the powered sub and are you intending to power the 4 speakers with the MVH-S520DAB or do you have a seperate 4 channel amp for them too?
What is this going in (year, make and model/trim)?
Just need to know what the powered sub is and if you have an additional amp and I can help you with the wiring setup.
What is the powered sub and are you intending to power the 4 speakers with the MVH-S520DAB or do you have a seperate 4 channel amp for them too?
What is this going in (year, make and model/trim)?
Just need to know what the powered sub is and if you have an additional amp and I can help you with the wiring setup.
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OP
audionoob3223
CarAudio.com Newbie
- Thread Starter
- #3
Hi mate it's a in-phase xtb-8 nothing high end but not a pos. It's 600w peak and 200 nominal, of course its powered, the pioneer is rated for 4x 50w at 3 ohms, speakers are well within spec just confusion about the rca situation, it's going in my 2014 fiat panda, pretty much 100% of the oem audio stuff is going out the window. I bought the Pioneer as it was the most powerful radio I could find within reason and I wanted to avoid an external amp.
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Pretty Straight forward. I think that you'll find that the sub overpowers the HU and adding an external 4 channel amplifier is really a must.
As for the wiring, pretty straight forward. Get a 4 or 8 gauge OFC wiring kit for power/ground. As for the rest, all you need is a long pair of RCA cables, L/R. They will go from the subwoofer outputs off the deck straight into the back to the L/R inputs on the powered sub. These will do fine. I did my searches on Ebay UK. if you can find them for less, just make sure they are shielded/twisted pair RCAs that reject noise.
I believe that if you use that Auto Start feature (ON), you won;t need to run a remote turn-on lead from the HU to the amp as it will sense the signal from the RCA inputs and turn the amp on. Sometimes they don;t work as advertised and the remote is needed (cutting off to soomn when signal is not present, or just not working as they should). Personally, you have the HU out and it has a dedicated remote turn on lead, that is the route I would take, remote out from the HU to the remote lead in on the sub. Make sure you select the Auto Start accordingly.
If you should elect to get an amplifier, get the six channel RCAs instead.
Here in green are some pointers.
Here are a couple of smallish amps that will vastly improve the system (night and day) from the actual 18-20 watts x 4 that head unit actually puts out.
This one is rather large but a good buy and quite powerful.
This is very reasonable
Budget banger
If you don't get another amp for the 4 speakers then you just wire them from the HU using their respective labeled leads, Right front, left front, right rear,left rear as is documented with the HU.
As for the wiring, pretty straight forward. Get a 4 or 8 gauge OFC wiring kit for power/ground. As for the rest, all you need is a long pair of RCA cables, L/R. They will go from the subwoofer outputs off the deck straight into the back to the L/R inputs on the powered sub. These will do fine. I did my searches on Ebay UK. if you can find them for less, just make sure they are shielded/twisted pair RCAs that reject noise.
I believe that if you use that Auto Start feature (ON), you won;t need to run a remote turn-on lead from the HU to the amp as it will sense the signal from the RCA inputs and turn the amp on. Sometimes they don;t work as advertised and the remote is needed (cutting off to soomn when signal is not present, or just not working as they should). Personally, you have the HU out and it has a dedicated remote turn on lead, that is the route I would take, remote out from the HU to the remote lead in on the sub. Make sure you select the Auto Start accordingly.
RCA Phono Oxygen Free Audio Cable RECOIL RCI217 Echo Series Premium Twisted 17ft | eBay UK
The flexible frosted PVC jacket and moulded strain relief ensure durability and easy installation. Recoil Echo Series 5.2m RCA Audio Cable – Twisted Pair, OFC, Nickel-Plated. Twisted Pair Design – Reduces interference and signal degradation.
www.ebay.co.uk
If you should elect to get an amplifier, get the six channel RCAs instead.
Here in green are some pointers.
Here are a couple of smallish amps that will vastly improve the system (night and day) from the actual 18-20 watts x 4 that head unit actually puts out.
This one is rather large but a good buy and quite powerful.
This is very reasonable
Budget banger
If you don't get another amp for the 4 speakers then you just wire them from the HU using their respective labeled leads, Right front, left front, right rear,left rear as is documented with the HU.
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Your 4 door speakers will not be powered by RCA cables. RCA cables are signal only, not used to drive speakers.
Your head unit will have a bundle of wires coming out of the back of it.
4 of those wires are used to drive your door speakers.
Your head unit will have a bundle of wires coming out of the back of it.
4 of those wires are used to drive your door speakers.
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OP
audionoob3223
CarAudio.com Newbie
- Thread Starter
- #6
Right so basically unless I get an amp those 4 rca outputs are kinda pointless for now ?
OP
audionoob3223
CarAudio.com Newbie
- Thread Starter
- #8
Ah yeah, makes sense now, I can still utilise the sub out I think, bit of trial and error going to be performed. Only way to learn
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audionoob3223
CarAudio.com Newbie
- Thread Starter
- #10
That's what I'll do, I don't know if the stereo will still act as a crossover and designate the lower frequencies to the sub out or not, only one way to find out !
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Your HU allows you to set the crossover as does the amp on the sub. I would set the one on the samp to as open as it can be and do use the electronic x-over settings on the hu to set it where it sounds best. Around 80-100hz.
Turn the crossover knob on the amp all of the way up (higher frequency).
Go into the crossover settings in your head unit and set subwoofer crossover to 80 or 100 hertz. Try a few different frequencies in that area and see what sounds the best to you.
If there is a slope option (6db, 12db, 24db) I'd suggest 12 as I middle of the road.
Read up on crossovers and different decibel slopes.
Go into the crossover settings in your head unit and set subwoofer crossover to 80 or 100 hertz. Try a few different frequencies in that area and see what sounds the best to you.
If there is a slope option (6db, 12db, 24db) I'd suggest 12 as I middle of the road.
Read up on crossovers and different decibel slopes.
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