Help for building CRACK with Speedball

[Paul Birkeland]

What is the problem with listening at 5 or 6 clicks?

[i luvmusic 2]

On 5th clicks sound low if i go 6 clicks it sound loud to my liking.Any position below 5th it sound too low for me and past 6th is too loud.

[i luvmusic 2]

If i will reinstall the stock pot or the ALPS pot what can i do to solved the channel imbalanced?Thanks!

[Paul Birkeland]

See Crack FAQ #3

http://bottlehead.com/smf/index.php?topic=4295.msg39600#msg39600

[Atraf]

I was planning on installing the the Alps Blue Velvet pot as a solution for the imbalanced in low volumes..
Are you saying only a stepped attenuator can fix that? (Besides the FAQ solution...)

[i luvmusic 2]

Thank You PB!

[i luvmusic 2]

 Alps Blue velvet did not fixed The  channel imbalanced the Attenuator does but my comfortable listening level is not matching the 23 stepped attenuator's settings.
 I found a 48 stepped attenuator but it's not cheap $179 @ PartscoX104.I will do The resistor mod instead.

[Paul Birkeland]

I still think you could just listen at step 6 and call it a day.

[i luvmusic 2]

I could but honestly i prefer the sound of the STOCK POT or the ALPS BLUE.

[Atraf]

Would it be that bad playing with the volume of your music source?
Put it on 6 and decrease the volume from a 100% to 95% or something on your music source.

About the attenuators, I was really sure that everybody replace the stock pot because of the imbalanced issue now I see its only for sonic benefits..

[i luvmusic 2]

 My crack is humming if no input signal or if i unplug the RCA Cables the hum starts once the pot is at 10 o'clock and it gets louder as it reach the max volume.If the signal is present the CRACK is dead silent even the pot is on max no hum.

Thanks!

[Grainger49]

The proper way to check hum is to short the inputs at the RCA jacks.  You can either use jumpers or shorting plugs.  The open RCA jacks can pick up noise.  Give that a try and report back.

[i luvmusic 2]

The proper way to check hum is to short the inputs at the RCA jacks.  You can either use jumpers or shorting plugs.  The open RCA jacks can pick up noise.  Give that a try and report back.

Hi Grainger49,
 I used a test clips and shorted the input RCA jacks like you described and if they're shorted(Centre pin to outer sleeve)no noise/dead quiet and if i removed the test clips on the outer sleeve of the rca jack leaved the test clips clipped onto the centre pin of the rca jack i can hear the music playing even though these rca jacks are not plug in to my source and if i touch the test clips that is clipped onto the centre pin the noise it gets really loud.So i guess i'am picking up interference.

THANK YOU!


I just unplug the jumpers from the rca centre pin and the music disappeared but the noise gets louder.


Thanks again!

[Grainger49]

I think the noise is caused by something outside of the Crack.  Are there any other electrical devices near it?

[ALL212]

Could one of your tubes be going bad?