[Vivekphadnis]

But HUs can put out just a few (maybe 10W) or less of RMS power. If one pumps up the volume it will lead to distortion and clipping. Having an amp will feed the speakers with ample power and the signal to noise ratio will go up. The result: cleaner, better sound. Very simple.

[prince85]

Originally Posted by ST7677

I do not think this is true!
As long as HU is able to provide power in the range of Power range of components, it should work fine. Though it,s capabilities may not be completely utilized.

I am not an expert in this but i feel there aren't any head-units in the market(that i have heard of) which give out enough juice(RMS) to do justice to reasonable speakers(leave alone components).

The normal Pioneer/Alpine/Sony HU's give out no more than 10-12W RMS(continous power) which is no match for components like say for instance a JBL GTO 607 component set(which is the topic of discussion in this thread) need atleast 50W-RMS(continous power) for it to sound how it is supposed to sound.

So yup, i believe components perform their best when mated with good quality amps like say JBL, Alpine etc .

Gurus like Navinji, Sam, Gunbir etc, plz correct me if i am wrong

Cheers+

[Vivekphadnis]

Prince85, you thought right. As I said in my post, HUs cant give that much electrical power for clean sound.

[ST7677]

Not really!

There are many HUs today in market which give 40-50W RMS per channel at <1% TDH.

It depends on how much min RMS power is required by the components and what is their sensitivity!
I.e. How much you need to turn up the volume. Distortion should be there only in last 10-15%.

[prince85]

Originally Posted by ST7677

Not really!

There are many HUs today in market which give 40-50W RMS per channel at <1% TDH.

\.

Ok then! Could you name a few Head Units that you know of which pump out 40-50W RMS per channel??

[low_bass_makker]

Originally Posted by ST7677

Not really!

There are many HUs today in market which give 40-50W RMS per channel at <1% TDH.

It depends on how much min RMS power is required by the components and what is their sensitivity!
I.e. How much you need to turn up the volume. Distortion should be there only in last 10-15%.

sorry man no single hu can make 40-50 watts rms continous .......it is not practically possible......in that much space....till any new technolgy comes in....

[Sam Kapasi]

Originally Posted by s0uljah

JBL 937 costs approx. 3.8k.

Nope, it's 4990/-

Originally Posted by prince85

So yup, i believe components perform their best when mated with good quality amps like say JBL, Alpine etc .
+

Yes, i would say that of all good speakers in fact. They will perform their best when connected to a good amplifier.
But at lower volumes, often i find that HU's tend to sound better than cheap amplifiers like sony 222 and 502. So i think it is better not to have an amp, than a cheap amp.

[s0uljah]

Originally Posted by Sam Kapasi

Nope, it's 4990/-

Sam, sorry about that, typo on my part and I couldnt correct in time

[navin]

Originally Posted by low_bass_makker

sorry man no single hu can make 40-50 watts rms continous .......it is not practically possible......in that much space....till any new technolgy comes in....

Things are changing though....

Look what my first google showed...
http://www.teamrocs.com/technical/pages/headpower.htm

http://www.carstereo.com/help/headunit.cfm

http://www.crutchfieldadvisor.com/IS...ew.html?page=4

http://www.findarticles.com/p/articl..._7/ai_n8682480
"Panasonic released the CQ-C9800U, which was the first 70W x 4-channel car audio head unit, setting a new power record"

[Bass&Trouble]

Originally Posted by navin

"Panasonic released the CQ-C9800U, which was the first 70W x 4-channel car audio head unit, setting a new power record"

Yeah, I saw that and others from the new line-up at the Panasonic launch in Mumbai. Nice range. Sure to give Pioneer a run for the money. Only the top of the line guy uses the PWM stage to put out 70x4 peak.

[ST7677]

I was checking with Honda on installing an external amp for the component speakers, they reveted back that I need not do so, as the integrated 2 din Alpine HU is latest in it,s class which pumps out 50W RMS power per channel.

Ofcourse I have asked them for detailed specs, but the system does sound pretty good!

[navin]

Originally Posted by ST7677

...as the integrated 2 din Alpine HU is latest in it,s class which pumps out 50W RMS power per channel.!

Now that I gotta see.

[esteem_lover]

Originally Posted by Bass&Trouble

Yeah, I saw that and others from the new line-up at the Panasonic launch in Mumbai. Nice range. Sure to give Pioneer a run for the money. Only the top of the line guy uses the PWM stage to put out 70x4 peak.

@B&T, how much does a HU like that cost ?
@Sam, is the sony 554ZR also considered a "Cheap" amp that it need not exist at all ?
please give your honest opinion guys.

[Bass&Trouble]

Originally Posted by esteem_lover

@B&T, how much does a HU like that cost ?
@Sam, is the sony 554ZR also considered a "Cheap" amp that it need not exist at all ?
please give your honest opinion guys.

I roughly remember the Panasonic head unit priced at about 19990/-. It's the top of the line. I think it's a good deal. I listened to it on a demo board at the event, with chatter and glasses clinking, hence it would have been impossible to tell the SQ aspect, but it was definitely louder than the other units. But my guess is that anyone using it for SQ will idle the internal amp anyway. So, not much point spending that much JUST for the internal amp. I am hoping the overall sound quality is good too.

The cheaper units are also good looking and comfortable to use. I found them better than comparable Sony units from all perspectives. I think the entry level mp3 unit is for 6990. Reliability however, only time can tell.

One unit that really caught my eye was the 2-din MP3 + cassette HU. Absolutely gorgeous. It's actually a 2-box unit at the back that looks united because of the full-sized front faceplate. Will take out the Pioneer 5000's underpants anyday.

[ST7677]

Actually after reading thru Navin's links even I am not sure!

I will get back when Honda sends specs in writting.

The HU actually gets hot while playing, if that's any sign (or is it a malfunction?)