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What's a good 5/3 channel amp?

Not having a Subsonic filter is certainly not a deal breaker... In a sealed box, most will never need one. In a ported box, it would depend on your tuning

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Old 07-03-2018, 06:59 PM   #16 (permalink)
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Not having a Subsonic filter is certainly not a deal breaker... In a sealed box, most will never need one. In a ported box, it would depend on your tuning frequency. In an IB setup, they may help, but certainly not NEEDed.
If you feel you must have a subsonic, but the amp you like doesn't have one, simply do this.. Line Level Crossovers
Why pay $100 more for an amp just because it has one built in?
harman.khinda and axmea? like this.
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Old 07-04-2018, 10:47 AM   #17 (permalink)
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Originally Posted by RonRizz View Post
Not having a Subsonic filter is certainly not a deal breaker... In a sealed box, most will never need one. In a ported box, it would depend on your tuning frequency. In an IB setup, they may help, but certainly not NEEDed.
If you feel you must have a subsonic, but the amp you like doesn't have one, simply do this.. Line Level Crossovers
Why pay $100 more for an amp just because it has one built in?
Sweet, thanks man.

Well I think I got bit by the mod bug. Do you got any recommendations for door speakers under 300? I actually like my Polk Audio DB6501 and I listen to most of my music using google play on my phone linked over Bluetooth.

I'm thinking of getting the Image Dynamics IDQ12 for my sub.

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Old 07-04-2018, 06:48 PM   #18 (permalink)
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Are you looking for coaxials, or component sets?
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Old 07-05-2018, 06:53 AM   #19 (permalink)
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Do a component set and you can certenly find some good sets for 300 bucks. CT sounds has made a good impression on me recently, Hertz has another great set, as well as focal and MAYBE Image dynamics if you can find them on sale.

https://www.amazon.com/Sounds-Meso-6.../dp/B00TRKNODO

https://www.amazon.com/Hertz-Audio-C...keywords=hertz

https://www.crutchfield.com/p_091165...hoC9lIQAvD_BwE
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Old 07-10-2018, 08:47 AM   #20 (permalink)
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Originally Posted by bigaudiofanat View Post
Do a component set and you can certenly find some good sets for 300 bucks. CT sounds has made a good impression on me recently, Hertz has another great set, as well as focal and MAYBE Image dynamics if you can find them on sale.

https://www.amazon.com/Sounds-Meso-6.../dp/B00TRKNODO

https://www.amazon.com/Hertz-Audio-C...keywords=hertz

https://www.crutchfield.com/p_091165...hoC9lIQAvD_BwE
So I returned the kenwood and ordered an Alpine 5 channel. My old PPI 900.5 sounded much better than the kenwood but that could be cause I had the kenwood bridged.

Will the alpine amp produce less heat at 2 ohms than 4 ohms on the subwoofer channel? Itll put out 500 watts either way.

Also I'm gonna order the IDQ12 and was looking at zenclosures. Astheticaly I like the rearfiring but the upfire has slightly more space 1.18 vs 1.35. Optimum is space is 1.8 cube ft. Is the extra .17 cubes gained from upfire config gonna help make it sound better?
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Old 07-10-2018, 09:09 PM   #21 (permalink)
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Will the amp produce less heat at 2 ohms vs 4? Likely more heat.
Will the extra cu ftage gained make an improvement in sound? more than likely, but possibly not enough to hear the difference. Adding polyfill to the enclosure will improve things for you. 1lb per cu ft.
It causes the sub to react as if it has more air volume than there actually is.
Most say a 10% increase, some argue higher.
Dont forget you need to deduct the space your woofer consumes from your total box volume as well.
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Old Yesterday, 10:18 PM   #22 (permalink)
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Originally Posted by RonRizz View Post
Will the amp produce less heat at 2 ohms vs 4? Likely more heat.
Will the extra cu ftage gained make an improvement in sound? more than likely, but possibly not enough to hear the difference. Adding polyfill to the enclosure will improve things for you. 1lb per cu ft.
It causes the sub to react as if it has more air volume than there actually is.
Most say a 10% increase, some argue higher.
Dont forget you need to deduct the space your woofer consumes from your total box volume as well.
Thanks, bro. The amp has made all the difference; waay better sound quality and way louder. I'll probably go with the upfire config and polyfill just to squeeze out a little extra SQ.

I have 4 channels to work with from the amp. I've read that active crossovers are better than passive. Would I get noticeably better SQ by running my tweeters and woofers all to separate channels and using the amp as a crossover (hi-pass filter) instead of the passive crossovers? How do I find how much power to send to the tweets vs. woofers and what crossover frequency to use for each?
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Old Today, 04:56 AM   #23 (permalink)
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Quote:
Originally Posted by harman.khinda View Post

I have 4 channels to work with from the amp. I've read that active crossovers are better than passive. Would I get noticeably better SQ by running my tweeters and woofers all to separate channels and using the amp as a crossover (hi-pass filter) instead of the passive crossovers? How do I find how much power to send to the tweets vs. woofers and what crossover frequency to use for each?
Active crossovers are considered to be better because of the amount of control they give you over your seperate components, as well as the small amount of power loss that is adherent to using passives.... A true active setup must come through a processor, whether it be outboard, or built into your head unit. using the crossovers on your amp, in my opinion, is just not worth the effort it takes to set crossover points correctly, as well as levels, for your particular speakers. the passive does all that for you, at the points the manufacturer recommends for the speakers.
Without processing, I'd leave the passives on.
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