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Topic: Speakers vs amps and cd players (Read 76774 times) previous topic - next topic
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Speakers vs amps and cd players

Reply #200 –
Quote from: xnor on
I'm wondering why audiophiles haven't long made the move to active speakers. Well, actually I'm not since they cling to all kinds of old stuff.

I guess the main problem is that they'd need 2 to 3 times the cables from their heavy aluminum blocks (amps) to the speakers, the interconnects, the digital cables ... considering the price of audiophile cables. That would probably cost more than their whole system does now.


I'm sure you know that isn't necessary, a single low level signal cable is all that is needed if the amps are internal, as most commercial stuff (mainly pro) is. Plus an AC cord of course.
Here's one I just finished this week, for a Canadian music lover, not an audiophile of course.

Their choice for convenience to go active, not due to any irrational, misinformed opinions about passive networks.
I definitely understand why those with limited knowledge would fear them however.

cheers,

AJ

Loudspeaker manufacturer

Speakers vs amps and cd players

Reply #201 –
True audiophiles would never get rid of their external DACs and amps that they so carefully "matched" to their "chain". Especially not if the replacements are integrated. That's blasphemy! 
"I hear it when I see it."

Speakers vs amps and cd players

Reply #202 –
Quote from: xnor on
True audiophiles would never get rid of their external DACs and amps that they so carefully "matched" to their "chain". Especially not if the replacements are integrated. That's blasphemy! 


Indeed, read a review of a £1200 Chord Hugo and the reviewers couldn't understand why I wouldn't spend £1200 on it and was perfectly happy with my FiiO E7

Speakers vs amps and cd players

Reply #203 –
Quote from: xnor on
I'm wondering why audiophiles haven't long made the move to active speakers. Well, actually I'm not since they cling to all kinds of old stuff.

I guess the main problem is that they'd need 2 to 3 times the cables from their heavy aluminum blocks (amps) to the speakers, the interconnects, the digital cables ... considering the price of audiophile cables. That would probably cost more than their whole system does now.


I would think *fewer* audio cables, thanks to  internal amping.  But more electrical power cables. 

Honestly  for  me it's just simple laziness and inertia about how to add 'room correction' DSP  and DPL II to an all-active loudspeaker system.

I'll probably get around to it some day ...

Speakers vs amps and cd players

Reply #204 –
Quote from: krabapple on
Quote from: xnor on
I'm wondering why audiophiles haven't long made the move to active speakers. Well, actually I'm not since they cling to all kinds of old stuff.

I guess the main problem is that they'd need 2 to 3 times the cables from their heavy aluminum blocks (amps) to the speakers, the interconnects, the digital cables ... considering the price of audiophile cables. That would probably cost more than their whole system does now.


I would think *fewer* audio cables, thanks to  internal amping.  But more electrical power cables. 

Honestly  for  me it's just simple laziness and inertia about how to add 'room correction' DSP  and DPL II to an all-active loudspeaker system.

I'll probably get around to it some day ...


I circumvented that problem by devising a high performance speaker-to-line level adaptor based on an inexpensive direct box.



I replace the two TS jacks with dual banana plugs,



gut everything but the transformer, and add three power matching resistors.

The existing XLR jack matches the input of typical pro audio active monitors:



Speaking of pro audio monitors, we finally got around to doing some response versus direction testing on LSR 308s.

The results were phenominal.

What is most interesting is that we can't confirm most of these:



The on axis response is pretty close to what we observed and is really impressive, but so were the FR curves for the first 20 degrees off the vertical axis, and 60 degrees off the horizontal axis.  We did not seem to see the slow progression in treble roll-off off-axis, but instead saw more like true constant directivity to the indicated angles, at which response dropped off quite rapidly and sometimes unevenly.

Our consensus was that the LSR 308 is a true next-generation improvement on the Behringer Truths.
 

Speakers vs amps and cd players

Reply #205 –
Quote from: Arnold B. Krueger on
Speaking of pro audio monitors, we finally got around to doing some response versus direction testing on LSR 308s.

We??
Will you post them?

Quote from: Arnold B. Krueger on
What is most interesting is that we can't confirm most of these:

I'm curious about those also. Even if they are averaged at those angles around the speaker, how does an 8" boxed driver get directional above 150hz?

cheers,

AJ
Loudspeaker manufacturer

Speakers vs amps and cd players

Reply #206 –
Quote from: ajinfla on
Quote from: Arnold B. Krueger on
Speaking of pro audio monitors, we finally got around to doing some response versus direction testing on LSR 308s.

We??
Will you post them?


In due time they should be posted here: GedLee PolarMap Display Program + library of existing tests

Quote from: ajinfla on
Quote from: Arnold B. Krueger on

What is most interesting is that we can't confirm most of these:

I'm curious about those also. Even if they are averaged at those angles around the speaker, how does an 8" boxed driver get directional above 150hz?


There must be a typo in that question because the answer seems way too obvious. ;-)

Speakers vs amps and cd players

Reply #209 –
Quote from: Arnold B. Krueger on
There must be a typo in that question because the answer seems way too obvious. ;-)

No typo. I see the expected directionality >700hz or so for an 8" driver, but 5db down at 300hz 90 degrees off axis? Driver should be omni in this range.

Gedlee Summa, with 15" dia woofer


Guess I'll have to wait for Earls measurements of the LSRs.

cheers,

AJ
Loudspeaker manufacturer