Bi-amping RF-7 II's

[lsiberian]

WOW! Just WOW!

If I called Domino's and mentioned that Papa Johns claims better ingredients, and told them I was thinking about buying Papa Johns, but I just wanted to talk about it. Don't you think they would just say for me to buy the Papa Johns, and have a nice day!

The fact you are considering either pizza indicates the lack of snobbery for good taste. Nutritionally they have nearly identical ingredients. The taste of the pizza is sufficient to pass through the average person's taste buds and provide calories to survive.

I myself prefer Domino's for the cost per Pizza rate. Feeding a group of hungry teenagers is easy with Pizza.

Now since we are being silly. I say drop the entire idea of using emotiva amps for this. Let's get some pro audio amps capable of driving JTRs. Peavey IPRs are very solid and 3 of them would make a nice addition.

 

[DenPureSound]

Sadly, misinformation like this spoken under the guise of informed discussion keep the ignorant and/or lazy off the right track.

If you read and/or comprehended the specifity of all details you would have a lot better understanding of such Truth. Call Domino's then, surely they can help your off track beliefs, but be sure to check the STP before you have all the Answers there. Don't fall into the Reciprocal of the Ignorant quotient, it will facilitate major dimenishing returns approaching Infinity.

 

[Rippyman]

The controversy is that subjectivist believers say it matters and scientific fact quoting, rational people are shot down by said subjectivist community for not having the "audiophile ear".

I'm a scientist, I like looking at the raw numbers, numbers don't lie.

I'm just looking for answers, some people have told me that an external amp/bi-wiring will improve the sound, I'm trying to find out why/how it will do this.

 

[zieglj01]

I'm just looking for answers, some people have told me that an external amp/bi-wiring will improve the sound, I'm trying to find out why/how it will do this.

What is their definition of improving it?

 

[zumbo]

I'm a scientist, I like looking at the raw numbers, numbers don't lie.

I'm just looking for answers, some people have told me that an external amp/bi-wiring will improve the sound, I'm trying to find out why/how it will do this.

Why? Because they did, and apparently the amplifier company agreed!

How it will do this? It won't.

 

[adwilk]

We will see if we are in agreement.

We aren't. I don't even have to answer the question... But, its "off topic" anyways...

Since the OP is a scientist, perhaps a little scientific theory could go a long ways.

My hypothesis is simple. There will be no AUDIBLE difference between running a single pair of speaker cables from a single channel on an amplifier to the passive xover network of the loudspeaker AND running two separate pairs of speaker cable from two separate amplified channels to an identical xover network of an identical loudspeaker.

Fortunately, there's plenty of "non-subjective" research that tends to prove this. Electronically, there is indeed some slight differences, but no evidence of which seems to be audible.

Can somebody wrap this up?

 

[adwilk]

What is their definition of improving it?

That's a fair question... Lets assume it does actually "change" the sound overall... Why would it necessarily be an improvement?

 

[zumbo]

That's a fair question... Lets assume it does actually "change" the sound overall... Why would it necessarily be an improvement?

Dangit, don't you know everything sounds better when looking at blue lights!

 

[Adam]

Dangit, don't you know everything sounds better when looking at blue lights!

Yep, yep. The transformer hum of my amps is almost angelic as I stare with burning hatred at the glowing blue LEDs.

Wait, we were already off topic, right?

 

[zumbo]

Yep, yep. The transformer hum of my amps is almost angelic as I stare with burning hatred at the glowing blue LEDs.

Wait, we were already off topic, right?

Just kidding about the hum, right?

 

[Adam]

Just kidding about the hum, right?

Just kidding about it being angelic, yes.

 

[j_garcia]

I'm a scientist, I like looking at the raw numbers, numbers don't lie.

I'm just looking for answers, some people have told me that an external amp/bi-wiring will improve the sound, I'm trying to find out why/how it will do this.

True numbers don't lie, but numbers also don't tell you how a speaker sounds either This question has already been answered in this thread more than once - it won't. If there is already enough power to drive the speaker without distortion at a given level, then an amp will not change the sound at all. It WILL allow the listener to turn it up more before reaching that distortion level and I think that is what the generic "it will sound better with an amp" statement might be getting at, but what it really means is "it will be louder and hopefully with less distortion".

 

[zieglj01]

That's a fair question... Lets assume it does actually "change" the sound overall... Why would it necessarily be an improvement?

One thing for sure - there will be no transformation or, transfiguration with the crossover.

 

[agarwalro]

If you read and/or comprehended the specifity of all details you would have a lot better understanding of such Truth. Call Domino's then, surely they can help your off track beliefs, but be sure to check the STP before you have all the Answers there. Don't fall into the Reciprocal of the Ignorant quotient, it will facilitate major dimenishing returns approaching Infinity.

Put the bong down and log out. Come back when you're sober.

 

[Adam]

Put the bong down and log out. Come back when you're sober.

I have to say, though, I'm craving some pizza now. I even have a Domino's gift certificate...

 

[zumbo]

check the STP

I like Stone Temple Pilots

 

[Adam]

I like Stone Temple Pilots

That is the first thing that popped into my mind. Isn't that what he was talking about?

 

[zumbo]

Scientifically Treated Petroleum

 

[derrickdj1]

Bi-amping RF 7II/ Impedance dips

A lot of Klipsch RF 7 owner use amps because of the frequent impedance dips of the speaker down to as low as 2.7. Most AVR's are not design to handle loads below 6 ohms safely. At higher volumes, the bass load increases and the dips become more frequent. Speaker or receiver damage can occur at this point. Amps can handle these dips, resulting in less distortion in the bass and midrange frequencies, hence some people report better clarity using an amp. The RF 7/RF 83 and maybe the RF 82 are the exception in the Reference line of Klipsch. Amp design also affects how the frequency band if effected due to design and not power/watts. The dips can be avoided by setting the speakers to small with a crossover of around 80 and use of a sub. Non Class D avr's will have a significant power drop with all channels driven or under heavy loads, which means the avr's performance with fall short of it published spec.

 

[TLS Guy]

A lot of Klipsch RF 7 owner use amps because of the frequent impedance dips of the speaker down to as low as 2.7. Most AVR's are not design to handle loads below 6 ohms safely. At higher volumes, the bass load increases and the dips become more frequent. Speaker or receiver damage can occur at this point. Amps can handle these dips, resulting in less distortion in the bass and midrange frequencies, hence some people report better clarity using an amp. The RF 7/RF 83 and maybe the RF 82 are the exception in the Reference line of Klipsch. Amp design also affects how the frequency band if effected due to design and not power/watts. The dips can be avoided by setting the speakers to small with a crossover of around 80 and use of a sub. Non Class D avr's will have a significant power drop with all channels driven or under heavy loads, which means the avr's performance with fall short of it published spec.

Assuming all that is true, the receiver only needs to deliver 10 watts to shatter your ear drums!

I remember when Donald Chave of Lowther was called to do a reinforcement in St Paul's cathedral when the high power boys had failed.

He filled the whole massive cathedral with 60 watts, and the press reports were laudatory. The speakers were four 6" cones, full range, nothing else. So efficiency and sensitivity matter.