audio set-up for beginners [continued]

[roblio]

[QUOTE=jhnkvn;2436655]*roblio
Regarding the X12 mrv-1507 4channel 3600watts, please.. that's quite a generic V12 amplifier (bootlegs in fact of the famous Alpine V12) and it's usually used for powering of separates - not power-hungry subwoofers. Don't buy the 3600W, it does not even produce half of that value. It's doing something like 60W * 4 ohms on each channel.

Isipin mo muna how you'll wire the subwoofer up. Since meron ka dalawang dual-VC subwoofers you have quite a lot of options naman. But to answer your question, kaya ba ng MRV ang 2-ohm load stable? The answer is... no. Most budget amplifiers aren't built that well sa power supply section nila to supply you 2-ohms on bridged mode. If you're doing a mono or 2-channel amplifier, baka pwede pa. But for 4-channels? Nah, they're just 4ohm stable bridged.

Stable on 2-ohms? Probably on a per-channel basis yan. Ex. 60Wx4 * 4ohms, 90Wx4 * 2ohms. But please, don't believe the box. Yun 3600W palang nga linoloko ka na pano pa yun ibang specifications.

Your best bet? Just use one of the voice coils - tutunong parin naman yan and use it on a bridged 4-channel amplifier.

Thanks sa reply sir jhnkvn

what ive done is that since dual 4ohms cya i make it series * 8ohms so ch1&2 bridge same as ch3&4 so i used up all the vc as series into the amp as bridge tama po ba safe po ba yung sub and amp ko?, also i used y splitter for the input. by the way sir jhnkvn i used it in the house lng i got power supply which has 42ampere adj voltage *13v. one more question can i power it up *14.4v or hangang ilang volts po kaya and safe cya?

i really appreciate your advice sir jhnkvn

[jhnkvn]

*roblio

The problem with 8 ohms is that it isn't really inherently "safer", it just adds more resistance to the flow so you get less wattage at a given time. If a bridged amplifier is doing 150W * 4ohms, then at 8ohms, it'll be around half of that or 75W.

For a subwoofer, you would want to lessen the resistance so you can tap more into your subwoofer's power. That's why people love wiring their subwoofers at 2 or 1 ohm.

You won't be needing to use both voice coils just connect one of them and it'll play fine. Speaker-design wise, it'll change the characteristic of the sound since the subwoofer will have different T/S parameters than having 2 VCs wired up - but hindi naman sila nagkakalayo so it isn't a problem.

If you're using a car amplifier wired up sa home power supply, you can push it to 14.4V without problems. Since most amplifiers are unregulated, you'll have more power to tap. For example, if you're 50W at 13V, you're doing something like 65W at 14.4V.

[sientobente]

Happy New Year! Buhayin natin itong thread. Posting my car setups, SQ and SPL.

4th-gen CRV
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[sientobente]

2nd-gen RAV4

[chito2011]

ok kaya yung JBL GTO938? if I'd install 2 sa front doors tapos stock pa yung HU (ala pa budget), am I on the right track here, mga paps? TIA

[sientobente]

ok kaya yung JBL GTO938? if I'd install 2 sa front doors tapos stock pa yung HU (ala pa budget), am I on the right track here, mga paps? TIA

I would suggest to go with Separates instead of a 6x9 sir.

[Chriswhiz]

Happy New Year! Buhayin natin itong thread. Posting my car setups, SQ and SPL.

4th-gen CRV
[/url]

That CRV looks familiar. ;)

Pa audi naman sir. Same tayo installer hehe

[Erick Chavez]

sir question lang po,
ano po ba magandang 2DIN na head unit pang SQ?
yung may bluetooth sana for handsfree calling ng android phone.. TIA

[sientobente]

That CRV looks familiar. ;)

Pa audi naman sir. Same tayo installer hehe

Sure thing Sir Ganda nga ng gawa ni Jonz.

[sientobente]

*Erick Chavez

I would still recommend Pioneer. Mainly because complicated yung cabling system ng Alpine. Get a Pioneer 2-DIN HU and then an external processor.