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Old 22nd November 2013, 14:04   #12376
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Default Re: Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q

I have a Sub-woofer having power handling 300 watts RMS and 1200 Watts Peak, with 2 Ohms. I am looking for a Mono-block amp for this Sub. Will an Monoblock amplifier with 500W RMS x 1 channel at 2 ohms be sufficient?

Also later if i a decide to add one more Sub, will this be sufficient or better to go for amplifier with ratings of 750W RMS x 1 channel at 2 ohms?

Below are items in question
Sub-Woofer
Infinity - Reference 1220SE - 300 watts RMS, 2 Ohms

Mono Amplifiers
JBL - GTO 501EZ - 500W RMS x 1 channel at 2 ohms
JBL - GTO 751EZ - 750W RMS x 1 channel at 2 ohms

Last edited by shamanth : 22nd November 2013 at 14:07.
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Old 22nd November 2013, 15:02   #12377
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Default Re: Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q

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Originally Posted by shamanth View Post
I have a Sub-woofer having power handling 300 watts RMS and 1200 Watts Peak, with 2 Ohms. I am looking for a Mono-block amp for this Sub. Will an Monoblock amplifier with 500W RMS x 1 channel at 2 ohms be sufficient?

Also later if i a decide to add one more Sub, will this be sufficient or better to go for amplifier with ratings of 750W RMS x 1 channel at 2 ohms?

Below are items in question
Sub-Woofer
Infinity - Reference 1220SE - 300 watts RMS, 2 Ohms

Mono Amplifiers
JBL - GTO 501EZ - 500W RMS x 1 channel at 2 ohms
JBL - GTO 751EZ - 750W RMS x 1 channel at 2 ohms
Your current subwoofer is 2 ohms. If add one more 2 ohms sub the only SAFE way to do so would be to wire them in series. Hence it would make more sense to buy a 2 ohm stable amp that was also rated at 4 ohms (2 x 2ohm subwoofers in series). For example about 500-600 W at 4ohms and say 700-100W at 2 ohms would be the power rating you should be looking at.
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Old 13th December 2013, 01:27   #12378
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Default Re: Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q

Hi guys.

I need a 4 channel amp with 100wrms per channel of power @ 4ohms. I would like some suggestions. i was suggested a second hand JBL 1004 but i dont really know JBL amps.

thanks
Anirban
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Old 13th December 2013, 11:55   #12379
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Hi guys.
I need a 4 channel amp with 100wrms per channel of power @ 4ohms.
Why 100W. 50W is just 3db less.

The Pioneer 6500 and Kenwood 846 can both produce 50W rms/4ohms at little up RF's PBR300 will put out 75w rms /4ohms.
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Old 13th December 2013, 12:03   #12380
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Default Re: Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q

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Why 100W. 50W is just 3db less.
i have currently have an old KAC 8401 in BTL mode powering my Morel Components @ 110wrms and they sound better than anything else i have heard. the thing is that i have removed the monoblock and sub to replace with 6x9s (due to a cng install).

so essentially, i could switch to 50wx4 with the mentioned preferred setup, or go for a more powerful 4 channel amp to get the punch back. i am running the morels without any HPF and they seem to be pretty comfortable.

what would you suggest?

thanks.
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Old 14th December 2013, 11:43   #12381
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Default Re: Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q

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Originally Posted by naturaldisaster View Post
so essentially, i could switch to 50wx4 with the mentioned preferred setup, or go for a more powerful 4 channel amp to get the punch back. i am running the morels without any HPF and they seem to be pretty comfortable
Swithching the Kenwood to 4ch mode costs nothing. So try that first.
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Old 14th December 2013, 12:14   #12382
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Default Re: Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q

agreed. let me try out 60wrms first. now the task ahead is to choose the 6x9s and figure out the enclosure required.

thanks
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Old 14th December 2013, 23:43   #12383
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Default Re: Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q

Guys planning to upgrade my bull audio sub. The shop fella suggested JL audio, quoted 12k. Any reviews about this sub?
I have a Monoblock from Hertz, HE 1D. I hope it can drive the sub.

Gurus, please give your valuable comments.

Last edited by vaisakhr : 14th December 2013 at 23:52.
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Old 15th December 2013, 12:29   #12384
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Default Re: Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q

The HE-1D is all suitable dont worry!

Also look for a DD sub or a Rainbow, they both are pretty good. Haven't heard JL though!
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Old 16th December 2013, 13:38   #12385
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Default Re: Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q

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Swithching the Kenwood to 4ch mode costs nothing. So try that first.
change in plans. last night i heard a friends (another CNG) car. he has the Xenos mini underseat active sub. while nowhere near the power of my old setup, i found it very acceptable. plus he has the 160wrms one and stated that another more powerful variant is also available.

so my 110rms per channel morels to continue... yay! and added punch from the xenos/kicker/infinity/etc or whatever little sub i get. no speakers at rare at the moment. any suggestions?
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Old 17th December 2013, 12:50   #12386
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Hi guys just wanted to ask. Is there any risk to having an amp in the trunk of a cng car? Even if it is kept away from the nozzle, etc? I know its a noob question but its just something that bothers me.
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Old 17th December 2013, 14:41   #12387
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Default Re: Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q

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Hi guys just wanted to ask. Is there any risk to having an amp in the trunk of a cng car? Even if it is kept away from the nozzle, etc? I know its a noob question but its just something that bothers me.
As long as you remove all possibilities of shorting and sparking, it should be fine. All wires and cables should be stayed down so that they can't move and loosen at the socket connection.
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Old 22nd December 2013, 16:21   #12388
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Default Re: Car Audio Advice from the Audio Gurus: Use "Search thread" before posting a new Q

Hi Gurus.

I have recently upgraded my Polo Stock ICE to:

- Pioneer FH-X759BT HU
- Infinity Primus PR6500CS Component Speakers for Front (stock speakers in rear)
- Rockford Fosgate R250-4 250Watt 4-Channel Amplifier
- Focal 8AWG wiring

Right now amp is driving just front speakers. Wiring for sub is already done. I listened to sub but initially, I felt that I don't need that much bass and felt that components are giving sufficient bass for me. But now I am thinking that I have already installed a 4 channel amp and wiring, all I need is a sub. So, I have shortlisted JVC CS1215B and Pioneer TS-WX303. I really don't want to spend much money on sub because I drive this polo just once or twice a week. JVC is 3.3k and Pioneer 4k approx.

Which one is recommended for me. Please suggest.

PS: Please also keep Polo boot size in my mind.
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Old 23rd December 2013, 13:03   #12389
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... I have shortlisted JVC CS1215B and Pioneer TS-WX303. I really don't want to spend much money on sub because I drive this polo just once or twice a week. JVC is 3.3k and Pioneer 4k approx.

Which one is recommended for me. Please suggest.

PS: Please also keep Polo boot size in my mind.
Neither.

Look for a Rockford Fosgate Punch P1S412 or JBL CS1214 12" sub. At 4K these are far better than JVC or Pio.

Keep in mind you will need a box - and that costs upwards of 700. You could also look at JBL CS1215B boxed sub (prefinished; should be available for 5K or thereabouts) or an equivalent Polk or RF.

Polo has a decent boot - don't worry. Make sure you use plugs at the sub cable end, so that in the extreme case that you need to leave the sub out (too much luggage) you can disconnect and reconnect the sub easily.
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Old 23rd December 2013, 13:26   #12390
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Neither.

You could also look at JBL CS1215B boxed sub (prefinished; should be available for 5K or thereabouts) or an equivalent Polk or RF.
Thanks. I was asking for JBL CS1215B or Pioneer TS-WX303 but by mistake I typed JVC instead of JBL.

Anyway, I got what you suggested and after reading this, I placed order for JBL CS1215B for Rs.3347/-. I guess it is a very good deal.
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