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View Full Version : HUs that can disable internal amp



DefiantGSR
12-13-2007, 05:33 PM
I used to have an 880prs that could do it but it got stolen. It made a big difference in sound quality. Probably more than the fact that it had burr brown DACs. I'm not willing to spend that much on another HU only for it to be stolen. Anyone recommend a HU that can turn off internal amp that is less expensive?:)

Mynameis
12-13-2007, 05:35 PM
alpine 9853/9855

importdude
12-13-2007, 10:43 PM
i think the 8+series from panasonic can

my 8403 has it

Macklessdaddy
12-13-2007, 10:55 PM
kenwood excelons do it

DefiantGSR
12-14-2007, 03:45 AM
alpine 9853/9855

nice. any others?

GoochJuice
12-14-2007, 03:58 AM
alpine 9831 and 9833

bizzy07
12-14-2007, 04:22 AM
my alpine 9826 can also

bass_lover1
12-14-2007, 04:35 AM
9887 does this as well.

brendan_121212
12-14-2007, 04:39 AM
my excelon 590 does it

hott-nix
12-14-2007, 08:07 AM
my 9885 can do it

skydeaner
12-16-2007, 02:08 AM
my panasonic 7403 can do it

adam71
12-16-2007, 06:31 AM
How much of a difference do you think it REALLY made in SQ.?? Don't get me wrong I use a deck with NO internal amp and I agree that less heat built up in the deck the better. But I would TOTALLY advise against basing your decision on a new head unit based on this ONE feature. Eclipse used to make some great sounding head units that did NOT have this feature and it didn't affect SQ at all. In fact, the 8455 was one the best sounding head units out in it's time. All this feature does is keep the heat down somewhat. Look at EVERYTHING when looking for a new head unit. You'll find that this feature is pretty LOW on the food chain.

sicro
12-16-2007, 01:42 PM
Alpine CDE 9845 has that function too, if youre looking for something cheap.

bonesninja
12-16-2007, 01:45 PM
9835

tommyd1782
12-16-2007, 05:14 PM
Cda-9857

azbass
12-16-2007, 05:14 PM
mine can :)

Max_Power
12-16-2007, 05:16 PM
mine can too

mile098
12-16-2007, 05:25 PM
How much of a difference do you think it REALLY made in SQ.?? Don't get me wrong I use a deck with NO internal amp and I agree that less heat built up in the deck the better. But I would TOTALLY advise against basing your decision on a new head unit based on this ONE feature. Eclipse used to make some great sounding head units that did NOT have this feature and it didn't affect SQ at all. In fact, the 8455 was one the best sounding head units out in it's time. All this feature does is keep the heat down somewhat. Look at EVERYTHING when looking for a new head unit. You'll find that this feature is pretty LOW on the food chain.

x many times

DefiantGSR
12-17-2007, 02:14 AM
x many times


From my experience, turning off the internal amp made people sound like they had no lisp. I mean, don't get me wrong, with the internal amp on it still sounded great. I'm not looking for some cheapo no name HU. I'll probably stick with Alpine...

I just dont want to spend $300 on another HU. This isn't the first time my whole sound system has been stolen.

I don't know. Maybe it interferes less with sound? People in the home theatre scene hate recievers because of their internal amplifier and use separates based on this and I assume its because of the same reasons.

tommyk90
12-17-2007, 02:17 AM
my midline alpine (7892) and even my cheapy kenwood deck both have that feature.

Scoobydoo
12-17-2007, 02:17 AM
mine does, not sure what model it is, but it is a clarion pro audio

RAM_Designs
12-17-2007, 02:20 AM
get one that's a dead-head...like my 8053 for $250...

Tonyguy
12-17-2007, 02:21 AM
my Kenwood excelon 791 has this feature.

adam71
12-17-2007, 05:07 AM
From my experience, turning off the internal amp made people sound like they had no lisp. I mean, don't get me wrong, with the internal amp on it still sounded great. I'm not looking for some cheapo no name HU. I'll probably stick with Alpine...

If your vocals sound like they have a lisp when the internal amp is ON then there were OTHER problems within the head unit. I seriously doubt the internal amp was causing that. If it was then there was a serious design flaw.



I don't know. Maybe it interferes less with sound? People in the home theatre scene hate recievers because of their internal amplifier and use separates based on this and I assume its because of the same reasons.


There are several advantages using seperate components.

1. Each component has it's own power supply. That way processing and amplification aren't using the same power supply and inducing noise. However in the case of an internal amp that isn't being used the noise will be much lower.

2. If you choose to upgrade you can do it 1 component at a time instead of (for example) changing out your head unit or A/V receiver.

3. Home theater guys that use seperates are 1) rich enough to afford them LOL 2) their power requirements far exceed what the biggest A/V receiver can put out. Also, external amplifiers tend to be much closer to their rated power where as A/V receivers power ratings tend to be a bit optimistic. 3) And again, the PRE/PRO and the AMPS will have their own seperate power supplies.

Thats not saying seperates ALWAYS provide the best results. A good clean deck with internal processing can sound just as good with much less noise than say an elaborate setup with seperate EQ, X-over. But that is pretty much where in car audio "less is MORE" in some cases.

Betrayer00GT
12-17-2007, 05:25 AM
The Clarion DXZ475MP has it, and it is $90 at Crutchfield. It even has free shipping, at least through today. Not bad, as it's $150 at the local shops that carry it.

photocrazy8
12-17-2007, 05:27 AM
7998 = dead head

mlstrass
12-17-2007, 11:31 AM
I ran my eXcelon for a few years before realizing I could turn off the internal amp. Made NO difference in SQ...

DefiantGSR
12-17-2007, 11:45 AM
If your vocals sound like they have a lisp when the internal amp is ON then there were OTHER problems within the head unit. I seriously doubt the internal amp was causing that. If it was then there was a serious design flaw.




There are several advantages using seperate components.

1. Each component has it's own power supply. That way processing and amplification aren't using the same power supply and inducing noise. However in the case of an internal amp that isn't being used the noise will be much lower.

2. If you choose to upgrade you can do it 1 component at a time instead of (for example) changing out your head unit or A/V receiver.

3. Home theater guys that use seperates are 1) rich enough to afford them LOL 2) their power requirements far exceed what the biggest A/V receiver can put out. Also, external amplifiers tend to be much closer to their rated power where as A/V receivers power ratings tend to be a bit optimistic. 3) And again, the PRE/PRO and the AMPS will have their own seperate power supplies.

Thats not saying seperates ALWAYS provide the best results. A good clean deck with internal processing can sound just as good with much less noise than say an elaborate setup with seperate EQ, X-over. But that is pretty much where in car audio "less is MORE" in some cases.

Thanks for your insight, Adam. I will research further what other HUs are on the market. However, it seems all the newer good HUs have that function anyway

J31Rob
12-17-2007, 11:47 AM
Get another 880, invest in a ******* alarm.

/thread.

2kchevy06civic
12-17-2007, 11:50 AM
I have an 8053 as well. It's the only Head unit I've ever owned though and couldn't tell ya what the difference is.

adam71
12-17-2007, 12:11 PM
I have an 8053 as well. It's the only Head unit I've ever owned though and couldn't tell ya what the difference is.

IMO the 8053 is the best head unit Eclipse ever made. Also the last dead head they made for here in the states too.

DefiantGSR
12-18-2007, 03:32 AM
Get another 880, invest in a ******* alarm.

/thread.

I had a 2 way alarm. Unfortunately, they don't have an infinite range, smart guy.

Gary S
12-31-2007, 08:21 AM
The amp mute will change the distortion curve and subsequently maybe your gain setting, but it's not worth much for sound quality... mostly, it's more efficient for the deck and allows it to run cooler.. and is a selling feature. There are more important deck features.

528hz
12-31-2007, 12:40 PM
The Alpine 7995 was the best HU I have ever owned. It was a "dead-head" and was like night

and day when I replaced it from the Eclipse I had and was running 2 amps. Everything sounds so much more

clean and brighter. I think it's especially noticeable in the highs and mids over the sub.

jco1385
12-31-2007, 12:43 PM
kenwood excelons do it

my kenwood mp528 would do this. it wasn't an excelon

goodstuff
12-31-2007, 12:46 PM
My Alpine 9830 does it. Also turns the display off after a few seconds of not touching it. It has time aligmnent as well, which is why I bought it.