1 ohm = 'dirty signal'?

[frzninvt 10+ year member]

Your dampening factor also drops as well in most instances, heat is the real problem and will wear down the internal components faster.

 

[helotaxi 5,000+ posts]

AN amp optimized for operation at 1 ohm should have no problem doing so. THD will be higher than @ 4 ohms but should still be well below audibility and thus a non issue. Damping factor will drop by definintion but should still be high enough. Heat isn't a real issue either if the amp is built to account for it. High efficiency Class D designs waste much less power and don't get hot like the old Class A/B amps did.

 

[Prowler573 5,000+ posts]

If a 1 Ohm load creates "dirty" power or whatever it is that you were told then why is it that reputable car audio manufacturers make amps that will operate at that load (or lower) continuously and safely?

Diamond, Orion, IA, Sundown, DLS, Arc, blah blah blah blah - the list could go on considerably for electronics manufacturers that make and sell amps that we all know will run all day long and then some when shown a 1 Ohm load and assuming you have the charging system to adequately support it there isn't ever a problem. Furthermore - why would these same companies create subwoofers that can be wired to a 1 Ohm nominal load whether by themselves or in conjunction with others if doing so was such an incredibly poor idea?

If you're running substandard equipment then likely you'll achieve substandard results.

If you're using tried and true gear that you know is going to do what the spec sheet tells you it will do then don't worry about it.

Additionally go back and tell whoever sold you this particular line of ish to go fly a kite and quit giving advice on subjects he is woefully ill-prepared to talk about.

 

[avs20 10+ year member]

Prowler...meh, I find know it all people funny. Cant get a word in edge wise..and yes, I tried. Wasnt worth my time honestly. I just found it interesting that a fairly well known company would be so ignorant on things that they sell.

 

[SplChoice- 10+ year member]

its more efficeint to run at 1 ohm then 4 ohm

 

[WhoSayWho? 5,000+ posts]

AN amp optimized for operation at 1 ohm should have no problem doing so. THD will be higher than @ 4 ohms but should still be well below audibility and thus a non issue. Damping factor will drop by definintion but should still be high enough. Heat isn't a real issue either if the amp is built to account for it. High efficiency Class D designs waste much less power and don't get hot like the old Class A/B amps did.

Probably does not belong in this thread (but I think that the question has been adequately addressed anyway) -- I noticed Pioneer premiers amps are "FD". In other words their full range amps are Class D. Thoughts?

 

[helotaxi 5,000+ posts]

Nothing wrong with full range Class D amps. The Alpine PDX amps are Class D. xtant makes one, too. Lots of battery powered speakers systems are fullrange class D. They don't measure any worse than any other topology, usually.

 

[supa_c 5,000+ posts]

Your a n00b Ryan

Eclipse also makes full range class D

 

[donpisto 5,000+ posts]

Whoever told you this, has some general knowledge about car audio, but it seems minimal and its based on what they have been told, not what they know and/or have experienced. Also seems it seems like they are just tryin to push you towards a specific product just to make a sale.

 

[buildmeabox 10+ year member]

Does anyone ever wonder why home speakers/transducers are almost always 8 ohms? Its easier on the receiver/amp plus the signal/output is cleaner. One should only worry about a "dirty signal" on the higher freq. spectrum not the lower. On the lower end the "dirty signal" is not audible, this is why subs are available in different resistance.

Every Mobile Audio store has an ignorant bish, its called affirmative action.

 

[supa_c 5,000+ posts]

Most HT amps arent fan cooled and heat up like a mo fo when wired to 4ohms.

 

[dB-r 10+ year member]

Every Mobile Audio store has an ignorant bish, its called affirmative action.

LOL!

It will always technically sound better (less THD) with higher impedance, but I think you should worry more about tearing up the amplifier at 1 ohm than tearing up the subwoofers.... I have had lots of so-called 1-ohm stable amps come through my shop blown to bits from running 1 ohm for extended periods, even with adequate ventalation (airflow) around the amp(s).

 

[sundownz Pro Seller]

Does anyone ever wonder why home speakers/transducers are almost always 8 ohms? Its easier on the receiver/amp plus the signal/output is cleaner. One should only worry about a "dirty signal" on the higher freq. spectrum not the lower. On the lower end the "dirty signal" is not audible, this is why subs are available in different resistance.
Every Mobile Audio store has an ignorant bish, its called affirmative action.

It's easier to get power at low impedance in a car as you have tons of current but a low voltage available for the power supply. In home you have a high voltage and comparatively low current so it makes more sense to power a higher impedance.

 

[dB-r 10+ year member]

It's easier to get power at low impedance in a car as you have tons of current but a low voltage available for the power supply. In home you have a high voltage and comparatively low current so it makes more sense to power a higher impedance.

Couldn't have said that better myself.

 

[n2audio 5,000+ posts]

So I was talking to a company today, and they do NOT recommend 1 ohm from any amp for their speakers because the signal is 'dirty'. They recommend ONLY 2 ohm and 4 ohm from an amp because they are 'cleaner' signals.What do you guys think?

I think it's a shame a retard of that magnitude has a job in this industry.