PinoyDVD: The Pinoy Digital Video & Devices Community
Home Theater => Audio => Amplifier => Topic started by: Weng! on May 25, 2006 at 06:00 AM
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dunno if this topic had been discussed before.
(http://www.shine7.com/audio/pre_inside1.jpg)
can a 50k ALPS pot be used in replace of the step attenuator?
if the output will be split in 2 to feed 2 t-amps, will there be a power degradation or disadvantage perhaps?
TIA sa mga replies ;)
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yes, please do...walang problema yan... ;D
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yes, please do...walang problema yan... ;D
thanks sir tony. i will definitely try this on my t-amps. at least isa nalang ang knob na pipihitin ko to control the volume of both amps at the same time.
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What potentiometer used in your passive control unit?
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What potentiometer used in your passive control unit?
i have a 50k ALPS pot but never had the chance to try the above config as i am using a tono pre-amp now.
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thanks for your reply
can i know where i can buy A STEPPED ATTENUATOR (ANY BRAND)
currently, im using a DIY PASSIVE CONTROL with ordinary pot (100K)
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reyrey,
You can order one from DIY FIDELITYhttp://www.diyfidelity.com.au/index.php?cPath=_33&osCsid=513376472ada2467febb052bc27bc20d (http://www.diyfidelity.com.au/index.php?cPath=_33&osCsid=513376472ada2467febb052bc27bc20d). Have fun ;)
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In some cases its worth trying passive preamp first (ex. alps blue) before embarking on active preamps (tube or ss).
there's not much difference daw in sound quality.
any comments, experiences regarding this? tnx
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if you want to build one >>>http://users.ece.gatech.edu/~mleach/papers/stepatten/stepatten.pdf
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i've been using a passive preamp for a long time now. maybe i've gotten so used to the sound that i'm having a hard time in finding a tube preamp to replace it
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if you want to build one >>>http://users.ece.gatech.edu/~mleach/papers/stepatten/stepatten.pdf
and if you want to buy 22step switch you can email "coffin", lin li-chun, at diy audio....
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Previously designed a passive pre-amp but not resistor or transformer based. Currently in use by me and a couple of other people.
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Previously designed a passive pre-amp but not resistor or transformer based. Currently in use by me and a couple of other people.
yan ba ung dinala mo sa haus na swiss army passive pre-amp ang dating (may mga modules?)
hindi yata kami kasama sa beta recipents,kelan yung sa min? :D
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Nadisgrasya ako ni Jumong eh tapos recently na sprain iyung isang daliri ko sa swimming pool. Kaya nga, pahinga muna ako. Next week simulan ko uli mag kumpuni. Not for sale pero pwede for swap. Puwede na sa akin iyung bagong tube pre-amp ... hehehe ... biro lang.
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;D ;D ;D
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thanks for the inputs sirs.
sana may makapag post impressions, feedbacks on comparison between a passive preamp vs. active preamp.
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sana may makapag post impressions, feedbacks on comparison between a passive preamp vs. active preamp.
Let me try. First time I heard one, I can describe the sound as "raw".
Neutral in audiophile lingo according to FLD. It gives me the impression that what I hear is the recorded material, no additional contribution from the audio gear. It is dynamic without the additional punch of an active preamp.
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thanks for the inputs sirs.
sana may makapag post impressions, feedbacks on comparison between a passive preamp vs. active preamp.
there is really no comparison as you will be comparing apples to oranges....a passive preamp is there just to assist you change volume levels...it is not supposed to change anything but the volume levels... ;D
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mga bro, where can i find a diy, passive pre for sale....with good quality parts of course :).