[[email protected]]

At where I work someone might buy a used
stereo receiver, a nice Yamha or Sony, from
ten years ago. They will usually pair it with
speakers of 3-6ohms impedance, even
though on the back the receivers might say 8-12
or even 8-16ohms. Am I right to recommend
they get higher - vs lower - impedance speakers
to go along with those receivers or amps?

I personally do not like the trend of lowering
impedances in consumer speakers, as I
feel the amp needs something to 'push against'
when it is driving the speakers.

[Mike Rivers[_2_]]

On 8/3/2018 11:34 AM, wrote:
At where I work someone might buy a used
stereo receiver, a nice Yamha or Sony, from
ten years ago. They will usually pair it with
speakers of 3-6ohms impedance, even
though on the back the receivers might say 8-12
or even 8-16ohms. Am I right to recommend
they get higher - vs lower - impedance speakers
to go along with those receivers or amps?

You're right to recommend looking for 8 ohm speakers if that's what it
says on the receiver, but a 10 year old receiver will almost certainly
be solid-state unless it's an audiophool model, and those generally
accommodate 4 ohm speakers with no problem. Nothing will blow up unless
the amplifier is pushed into clipping, and then the first thing to go is
likely to be the tweeters.

Tell him to get speakers that sound good for what he can afford, and be
done with it.

--

For a good time, call http://mikeriversaudio.wordpress.com

[[email protected]]

Mike Rivers:

Most receivers, old and new, specify a range of
impedances on their back plate that they can
safely drive. My home receiver states 8-16
ohms. Some newer ones state 4-8.

I was told time and time again over the last
thirty years to never hook up speakers of
impedance below that lower number. IE one
would never hook up 4-6ohm speakers to
a receiver specifying 8-16ohms. Or a 3ohm
speaker if the receiver minimum was 4ohms.

Yes, one wants speakers that 'sound good'
(the 'use your ears' crowd), but there are also
rules and guidelines that apply.

[None]

Thick-MaMa sharted:

I was told time and time again over the last thirty years

.... yada yada yada, you're not paying attention. For thirty years, or more.
If you haven't been able to grasp the concept after thirty years,
splattering thAAT fact all over usenet wont help.

Numbers. Forget it. Numbers are your enemy. As long as you insist that you
can't do numbers, just forget the whole impedance thing. Or you could just
come to usenet every couple of months to publicly prove that you're still a
dumb-****. LKVNS, SFLK. HSK!

[Mike Rivers[_2_]]

On 8/3/2018 1:42 PM, wrote:
I was told time and time again over the last
thirty years to never hook up speakers of
impedance below that lower number. IE one
would never hook up 4-6ohm speakers to
a receiver specifying 8-16ohms. Or a 3ohm
speaker if the receiver minimum was 4ohms.

Did you ever find out why? If you understood the electronics (basic
electricity, actually) you'd understand why ignorant people tell you
that you should never do this, and understand why you can.

The same people will tell you to never hook a speaker rated at 25 watts
to an amplifier rated 100 watts. Smart people understand what those
ratings mean (often, nothing) and do what works.

--

For a good time, call http://mikeriversaudio.wordpress.com

[[email protected]]

Mike Rivers wrote: "
Did you ever find out why? If you understood the electronics (basic
electricity, actually) you'd understand why ignorant people tell you
that you should never do this, and understand why you can"

I was told that hooking up a speaker of lower
impedance than the minimum specified by a given
receiver or amp could cause that amp to "overheat
quickly" and that there was "insufficient load on the
amp".

Mike I'd be surprised if you or Dorsey told me that
I could 'ignore the numbers' and hook up speakers
of any impedance to my 8-16ohm receiver. And even
if you said it was okay, I'd still go by what's printed
or engraved on the back of it, and audition for the
best sounding speakers in the corresponding
impedance range. Those figures exist on the backs
of amplifiers & receivers for a reason.

This "use your ears; ignore the specs/numbers"
mentality today is irresponsible in my humble
estimation, and could lead to blown gear
and other sorts of damage(notably to said ears),
fires, etc.

[Mike Rivers[_2_]]

On 8/3/2018 6:04 PM, wrote:
I was told that hooking up a speaker of lower
impedance than the minimum specified by a given
receiver or amp could cause that amp to "overheat
quickly" and that there was "insufficient load on the
amp".

An amplifier can "overheat quickly" with the correct impedance speaker
connected if you operate the system stupidly. The part about
"insufficient load" is horse****. If anything, it's too great a load.
But the, still, only if you allow it to overload.

There's an "insufficient load" issue with a tube amplifier with an
output transformer. If you operate the amplifier without a load and push
it to its maximum output level, the output transformer could possibly
arc over internally, damaging the transformer or the output tubes. But,
again, this is only if you do something stupid.

Mike I'd be surprised if you or Dorsey told me that
I could 'ignore the numbers' and hook up speakers
of any impedance to my 8-16ohm receiver.

I didn't say that, and I'm sure Scott wouldn't say that either. What I
said was that it was OK to connect a 4 ohm speaker to an amplifier
that's rated for an 8 ohm speaker, as long as you keep it down to a safe
level. For a given setting on the volume knob, a 4 ohm speaker may not
play as loud as an 8 ohm speaker, but that depends on other things in
addition to impedance. Again, it's about avoiding doing something
stupid. And you can do something stupid (and cause damage) even with a
speaker of the recommended impedance connected.

And even
if you said it was okay, I'd still go by what's printed
or engraved on the back of it

Nobody said you couldn't.

Those figures exist on the backs
of amplifiers & receivers for a reason.

Yes. As guidance for salesmen.



--

For a good time, call http://mikeriversaudio.wordpress.com

[None]

Thick-MaMa sharted:

I was told ...

Nobody gives a **** what you were told. Since numbers are involved, you
probably don't even know what you were told; you probably weren't even
listening.

Same old story. Theckma Dumb-**** pretends to ask a question (which he's
asked dozens of times before), but he really just wants someone to tell him
that his dumb****ery is correct. Instead, reality is explained to him. He
doesnt want the real answer; he's too stupid to accept it. He gets upset.
He pretends he can school people that know better than he does. He does not
learn a thing. He holds tight to his dumb****ery, so he'll circle right back
around to the same charade again, as always. On the short bus, using your
ears is not allowed. That's not what loudspeakers are for on the short bus,
apparently. FSKFH. FCKWAFA! SBDF.

FCKWAFA.

[None]

Theck-Mah womped:

... theckmah turds flushed ...

The answer is the same now as it was the last 37 times you've brought up the
same question. It doesn't matter what answer(s) you get; we know you'll be
back again proving that you didn't understand, and that you are incapable of
understanding.

I personally do not like the trend ...

Really, nobody gives a flying **** what you like. You're too retarded to
understand amplifier/speaker impedances, and nobody needs the advice of a
retarded dumb ****. HSDJF. DFR. SBDF.

[Scott Dorsey]

wrote:
At where I work someone might buy a used
stereo receiver, a nice Yamha or Sony, from
ten years ago. They will usually pair it with
speakers of 3-6ohms impedance, even
though on the back the receivers might say 8-12
or even 8-16ohms. Am I right to recommend
they get higher - vs lower - impedance speakers
to go along with those receivers or amps?

Or they should get different amps if they like those speakers. The amp
is rated for a minimum speaker impedance.

I personally do not like the trend of lowering
impedances in consumer speakers, as I
feel the amp needs something to 'push against'
when it is driving the speakers.

I have absolutely no idea what this means. It doesn't matter one bit what
the impedance is, as long as the amplifier can drive it and the speaker cable
can handle it. P=IV and you can increase I or V and either way get the same
results.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

[John Williamson]

On 03/08/2018 23:06, Scott Dorsey wrote:

I have absolutely no idea what this means. It doesn't matter one bit what
the impedance is, as long as the amplifier can drive it and the speaker cable
can handle it. P=IV and you can increase I or V and either way get the same
results.


I think what Thekma is on about is a tendency in automotive applications
to use speakers with very low impedances to permit more power to be
drawn from the limited supply voltage, the need for which is exacerbated
by the tendency of modern speakers to improve linearity at the expense
of efficiency. If you need a long throw, it's cheaper to make a long
voice coil than a long, uniform magnetic field which will contain the
whole coil. The down side is that a fair amount of the coil isn't
actually doing much, as it's outside the magnetic field.

--
Tciao for Now!

John.

[None]

"Scott Dorsey" wrote in message news
wrote:
...I feel the amp needs something to 'push against' when it is driving
the speakers.

The amp doesn't give a **** how retarded you are.

I have absolutely no idea what this means.

That's OK; Theckmah also has absolutely no idea what it means. He'll be back
in a couple of months with the same short-bus dumb-****ery.

[Chuck[_11_]]

On Fri, 3 Aug 2018 08:34:16 -0700 (PDT), wrote:

At where I work someone might buy a used
stereo receiver, a nice Yamha or Sony, from
ten years ago. They will usually pair it with
speakers of 3-6ohms impedance, even
though on the back the receivers might say 8-12
or even 8-16ohms. Am I right to recommend
they get higher - vs lower - impedance speakers
to go along with those receivers or amps?

I personally do not like the trend of lowering
impedances in consumer speakers, as I
feel the amp needs something to 'push against'
when it is driving the speakers.
Yamahas used to have a switch on the back that would decrease the
voltage to the output transistors if one wanted to drive low impedance
speakers.