Eli47

I AM saying that 8 ohm systems sound better than 4 ohm systems.
bones2, y'know the 'ol saying, "no highs, no lows, gotta be Bose".
Jrace, some manufacturers go to a 4 or 6 ohm impedance to compensate for efficiency shortcomings.
A proper crossover may help, something like a Zobel network..,but.

mike bisson

iTrader: (1)

WRONG -- many of the best speakers in the world -- are 6 ohms or lower -- For example -- Dynaudio Evidence, Wilson Sofhia. Impedance is irrelevant when it comes to sound quality. In fact, it can be said that sometimes the opposite is true -- some manufacturs make their speakers 8 ohm to compensate for "cheap" amps and receivers that cannot "handle" lower impedances.

Tim Baillie.

Impedance of the driver is not irrelevant, however a speaker that is hooked up to a amp that is 200x2 at 4 ohm is going to sound better then hooked up to a amp that does 200x2 at 1ohm. The amp will have way more control over the speaker at 4 ohm and there will be less distortion, less uneeded cone travel......................running a car amp at 8ohm is a waste of an amp, but running it at 1ohm, especially if it is not just a woofer amp is dumb...........

Haunz

iTrader: (3)

So I guess the R&D guys at pioneer must be some kind of retards for designing an amp for thier premier line that can run at 1ohm stereo.... [img]graemlins/laugh.gif[/img]

Just because it's 1ohm stable dosen't mean it's spec's are going to be any different then any other amp running at it's nominal load.

The benifit of running at a higher impedance is less power compression which means more headroom from your amp... does anyone want to guess how large the difference is gonna have to be to make an audible difference ?

Haunz

iTrader: (3)

Oh ya... looks like the pioneer is sold and I'll be running a lanzar vibe438 (175RMSx4 @ 4ohms) instead...

Iam still looking for some shallow mount DVC 10's, if anyone knows of any.... ?

mike bisson

iTrader: (1)

Impedance of the driver is not irrelevant, however a speaker that is hooked up to a amp that is 200x2 at 4 ohm is going to sound better then hooked up to a amp that does 200x2 at 1ohm. The amp will have way more control over the speaker at 4 ohm and there will be less distortion, less uneeded cone travel......................running a car amp at 8ohm is a waste of an amp, but running it at 1ohm, especially if it is not just a woofer amp is dumb........... </font>[/QUOTE]I am not suggesting that someone drive a car system at 8 ohms; however, I do argue that just because a speaker is a lower impedance does not mean it is "not good".

JRace

Hmmm...one of the highest regarded small bookshel speakers ever made...(Totem Model-1 Signature)4ohms, 87dB effiecent.

Open your eyes there are other speaker manufactures other than Bose that use speakers of low impedence.

Besides, actuall load presented to the amp varies with frequency. So your 8ohm speakers can dip down to 6 and 4ohms.

All I am saying is that you cannot relate impedence to sq.

[ August 01, 2004, 08:46 PM: Message edited by: JRace ]

mike bisson

iTrader: (1)

^^^^^ Darn tootin' [img]graemlins/thumb.gif[/img]

Haunz

iTrader: (3)

^^ impedance won't dip below whatever the DC resistance is...

Eli47

The statement was about front stage @ 1 Ohm, I doubt that there's be any differenciating between stage and a wall of sound.
Yes there are speakers that are 4 ohms, and 6 ohms, open their crossovers and ask what are all those resisitors doing in there??
Tim tried to make a minor point, having to do with speaker control, a.k.a Damping factor, and MFB, but I'd guess that if 1 Ohm is a consideration, Sound Quality is not .
Mike there are even other speakers that present a "short-circuit" to an amp, like Electrostats, and those as you know need a really good amp with a hefty power supply to drive properly.
If the above mentioned amplifier can produce 250 watts @ 1 ohm, what is it rated for at 4 ohms?
Yes I also know that speakers are a REACTIVE load and not a resisitive load, so impedance will change with musical signal.., but I still say it'll sound like CRRAP !!
Why not have a similar system at 4 ohms and another at 1 ohm, see which sounds "better" to your ears, and which has a form of front stage ??