SET amp owners thread

I disagree and can only assume it isn’t an apples to apples comparison you’re referring to: it’s got with physics, hence mostly the room than anything else, and I can see no reason why there would be a difference between active and passive provided the cabinet type is the same (and in particular if the active subs, as in my case, are servo-controlled open baffle, never encountered anything that would work alongside the room acoustics more rather against them). The only difference, physically, that I can think of, all else being equal, is that the damping of an active system may be adjustable (having said that, I’ve built passive speakers whose damping can be inductively adjusted over a wide range from vented to quasi-sealed). The main reason many active subs sound disintegrated is that their input signal is being tapped off a pre, so they do not share the sonic characteristics of the main speakers, a lack of coherence that tends to be magnified when the mains are driven by tube electronics and the subs by solid state via low-level signals.

Greetings from Switzerland, David.
Did you find yourself adjusting the passive ones based music genre like you do the active subs?
 
For those who don’t know, a few years ago Brad sent me video by PM. I told him his highs were off from the lows based on listening on phone. A few days later he posted a video with the highs adjusted. When I PMed him about it, he replied he adjusted one of the drivers by 5db. The guy could not hear in person what I heard on the phone that one of his drivers was off by 5db
 
Listening critically with a phone and Naim box = joke.

.. pants on fire. Try to be honest for a change instead of twisting things to suit your ego
 
You
For those who don’t know, a few years ago Brad sent me video by PM. I told him his highs were off from the lows based on listening on phone. A few days later he posted a video with the highs adjusted. When I PMed him about it, he replied he adjusted one of the drivers by 5db. The guy could not hear in person what I heard on the phone that one of his drivers was off by 5db
You shoukd think before you post. Of course with no bass through the phone elevated highs will be more obvious but the reverse won’t be. If my bass had been too high it would have sounded ok from the phone but too much live.
What you fail to disclose was those were early days of my active system and I was changing lots of things. Your feedback was just a tiny piece in the evaluation. Of coourse you yet to flatter yourself that you guided me, which is not even close to tge true picture. I was playing with different horns, crossover slopes, levels etc. at that time.
 
You

You shoukd think before you post. Of course with no bass through the phone elevated highs will be more obvious but the reverse won’t be. If my bass had been too high it would have sounded ok from the phone but too much live.
What you fail to disclose was those were early days of my active system and I was changing lots of things. Your feedback was just a tiny piece in the evaluation. Of coourse you yet to flatter yourself that you guided me, which is not even close to tge true picture. I was playing with different horns, crossover slopes, levels etc. at that time.
You couldn’t hear that your high was 5 or 6db muted compared to your low so you had to change it. This should be audible in room not have to be said by someone listening over phone
 
It's interesting that this seems to be more of a problem with active bass than with passive speakers, where mostly no such adjustment is possible...thoughts?
Another problem is when sub and main speaker “fight each other” as in a scenario where ported main speakers or backloaded horns are combined with subs where, logically, there’s multiple levels of delay and phase issues to cope with. I love subs and what they can do for a system, but have always been of the opinion that they’re there to augment (and in rare cases compensate for deficiencies of) room acoustics alongside (preferably full-range) main speakers, not against them.

Greetings from Switzerland, David.
 
.. pants on fire. Try to be honest for a change instead of twisting things to suit your ego
Dishonest about what? Until a few posts ago I had no idea you were so incompetent and somehow convinced you judge videos playing them back through a phone of all things…or a Naimbox, whatever that is. Acouticsguru, whose hearing and judgement on sound quality I know well and respect, says a few posts above he Wouk’s make any comment on a video without hearing it at least with good headphones.
You just try to fool everyone with your pronouncements from a phon playback…joke…
 
Dishonest about what? Until a few posts ago I had no idea you were so incompetent and somehow convinced you judge videos playing them back through a phone of all things…or a Naimbox, whatever that is. Acouticsguru, whose hearing and judgement on sound quality I know well and respect, says a few posts above he Wouk’s make any comment on a video without hearing it at least with good headphones.
You just try to fool everyone with your pronouncements from a phon playback…joke…

Dishonest
 
You couldn’t hear that your high was 5 or 6db muted compared to your low so you had to change it. This should be audible in room not have to be said by someone listening over phone
It was and so I changed it. Whether something like that is obvious depends also on recordings…in some cases it sounds clearer at first…then later too bright. Of course with no bass you heard only bright.
 
Another problem is when sub and main speaker “fight each other” as in a scenario where ported main speakers or backloaded horns are combined with subs where, logically, there’s multiple levels of delay and phase issues to cope with. I love subs and what they can do for a system, but have always been of the opinion that they’re there to augment (and in rare cases compensate for deficiencies of) room acoustics alongside (preferably full-range) main speakers, not against them.

Greetings from Switzerland, David.
Yes, leading to “hunting” for the right bass…even in your system as you noted above.
 
Did you find yourself adjusting the passive ones based music genre like you do the active subs?
Again, I do not adjust. Active subs would at least offer the option to do so if one wished. The problem is one of setting up a system to play perfectly flat and end up surprised when modern dynamically compressed recordings and/or remasterings sound boomy - which they do because they were mixed and mastered for an audiophile clientele, but those bass-shy mobile phones you alluded to yourself, or an iPod etc. (take your pick, and beware of anything that says e.g. “Mastered for iTunes).

The same problem doesn’t arise when one plays back e.g. one of those legendary Decca such as the Oistrakh in one of the video samples further above, because those were mixed and mastered with us audiophiles as the target clientele in mind, so they’ll sound wonderful on a flat-balanced system.

Greetings from Switzerland, David.
 
Yes, leading to “hunting” for the right bass…even in your system as you noted above.
See my post above! I personally haven’t touched a knob on my subs since I set them up for the new mains a couple of years ago. What was your point again, other than that active subs offer an option most passive speakers don’t have?

Greetings from Switzerland, David.
 
morricab
why are you even reading this thread?
to me you just seem to be out to pick a fight.....
A) I own SETs and this is a SET owners thread.
B) I own horns, which are frequently discussed on this thread

Am I to believe that you think listening to recordings of your system through a phone speaker is somehow representative of your systems sound? This I objected to and I was told my system is shit because he heard a recording of it through his phone. If that isn’t asking for a fight I am not sure what is. Me saying a practice is a joke is not the same as a personal attack.
Does the system in question even use a SET? If not, then why is it even posted on this thread?
 
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See my post above! I personally haven’t touched a knob on my subs since I set them up for the new mains a couple of years ago. What was your point again, other than that active subs offer an option most passive speakers don’t have?

Greetings from Switzerland, David.
Ok, I misunderstood your post.
 
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did I ever claim this?
Am I to believe that you think listening to recordings of your system through a phone speaker is somehow representative of your systems sound?

when I listen to theese vids, for whatever reason. I use Koss Porta Pro hooked up to my desktop NUC
should think the owner/starter of this thread was allowed to post something of interest, normally assosiated with SET....

I believe the core of your problem is that someone told you your system stinks, based on whatever doubtful basis
I wouldn´t even bother tbh
 
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