Themis;498431 Wrote:
> Clipped signal contains DC, no ?
Of more importance in this context is the approximately square wave
nature of clipped signals - DaveWr has already explained that.
I suppose the flat-top of a clipped waveform can be considered to be a
momentary burst of DC. If it was flatt
Cliveb is right
Clipped midrange / bass frequencies, tend to produce square like
waveforms, therefore from Fourier Series, must contain significant high
frequencies. Many loudspeakers, even supposedly high power only have 6
watt rms handling tweeters. Also some specialist designers run tweeters
cliveb;498404 Wrote:
> Clipped waveforms contain serious amounts of high frequencies).
Clipped signal contains DC, no ?
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Themis
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cliveb;498404 Wrote:
> Even if you've got attenuation set (by whatever means), you have to be
> careful with test tones. Music doesn't contain that much energy at high
> frequencies, so tweeters have quite low power handling capability. If
> you play a high frequency signal at full volume, then c
Phil Leigh;498152 Wrote:
> Most power amps don't have level controls on them... hence the need for
> either attenuation or a pre-amp.
>
> If you have a power amp with level controls, then yes that's fine.
Even if you've got attenuation set (by whatever means), you have to be
careful with test to
kphinney;498089 Wrote:
> I'm a tad unsure about the above. If an unattenuated Transporter is
> hooked directly to the amp and the amp's volume is set such that the
> loudest volume on the TP is within comfort range isn't that the same as
> attenuating the TP?
>
> This is how I had mine for the
Phil Leigh;497213 Wrote:
> ...
> Did you have any attenuation between TP and Power amp?.
> If you went through a pre-amp you should have been OK unless you had
> the volume up very high.
>
> If you are running into a poweramp with no attenuation, that is a
> non-supported setup as a bug in the v
Hi all,
I had the transporter connected to a Mark Levinson 336 directly, with
no pre-amp in between. Before the transporter I used a wadia 850 with
digital volume control, that's why I have no pre-map. This experience
forces me to get one. Fortunately the repair of the speakers wasn't that
costly
cliveb;497547 Wrote:
> I remember about 17 years ago I was checking how high I could hear using
> a test CD and was pleasantly surprised to find that (in my mid 30s) I
> could hear the 18kHz tone. So I tried 20kHz but heard nothing.
>
> Then I took my brain out of gear: "perhaps if I turn it up
pfarrell;497216 Wrote:
> It doesn't even have to be full range. Its trivial to blow out tweeters
> with test tones, since most of us can't hear all that well up in tweeter
> territory.
I remember about 17 years ago I was checking how high I could hear
using a test CD and was pleasantly surprised
On 20/12/09 07:46, Pat Farrell wrote:
> Phil Leigh wrote:
>
>> In this case, putting a nice full range sine wave through your speakers
>> will often kill them pretty quickly if the amp vol is high...
>
> It doesn't even have to be full range. Its trivial to blow out tweeters
> with test tones, s
Phil Leigh wrote:
> Tante Cor;496114 Wrote:
>> The problem is I blew up the
>> midrange units of my speakers when I tried it
>
> You have my sympathy - that could be an expensive repair.
And mine too. Drivers for any speakers that audiophiles will listen to
are usually very expensive repairs.
Tante Cor;496114 Wrote:
> Hi Neil,
>
> yes, i did, but that's not it. Logitech support claims it's not a
> documented function in the transporter. The problem is I blew up the
> midrange units of my speakers when I tried it, now they want me to show
> them this function.
>
> Regards,
>
> Tante
Browsing can be costly. :p
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Tante Cor;496114 Wrote:
> Hi Neil,
>
> ... The problem is I blew up the midrange units of my speakers when I
> tried it...
>
So we shouldn't play with this, eh?
--
kphinney
-I like it, you may not. I understand and respect that.-
--
Gizek,
much obliged for this info.
Tante Cor
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Tante Cor
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___
Yeap, it's kind of tricky one:
Put Transporter into setup mode - press and hold left arrow until you
see set up networking
Scroll down to:
Current settings > Factory Test > Audio Tests
Here you find some audio tones.
There is also hidden message under
Current Settings > Firmware info.
Just pre
Hi Neil,
yes, i did, but that's not it. Logitech support claims it's not a
documented function in the transporter. The problem is I blew up the
midrange units of my speakers when I tried it, now they want me to show
them this function.
Regards,
Tante Cor
--
Tante Cor
Hi Tante
Do you mean the Network Tests under Settings>Information>Network Test?
Regards
Neil
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badlyread
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View this thread: http://forums.slimde
Hi everyone,
when browsing around on the menu of the transporter I found 6
audiotests. Now i can't find it anymore. Does anybody know under which
menuoption they are located? Thanks.
regards,
Tante Cor
--
Tante Cor
Tant
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