0 Members and 1 Guest are viewing this topic. Read 9173 times.
I hope this had not been discussed before, but is there a way to calculate what the volume setting would be for a given speaker SPL?The reason I ask is I want to use a stepped attenuator for my GK-1 (unbuilt) which feeds my 55N+ (build underway) and my Aksonics (built).If I know what SPL range I like to listen to and I know the output voltage from my CD player, can I confirm what dB settings of the volume control produce the SPL I want. If I know this I can confirm the dB steps that would be appropriate for me, prior to ordering the attenuator and resistors.I know I can just build the GK-1 with a pot and measure the resistance at the different levels, then order the stepped attenuator later. However I want to order some other parts from Michael Percy to build my GK-1 and only want to order once, if I can help it, to save postage (to Australia).Hugh, would a 22K or a 25K volume control be best? What is the sensitivity of the Aksonics?I hope this does not sound too obsessed or retentive, but I only what to solder once and order parts from overseas once, if I can.
Andy,I know I am going over the top with my GK-1, but I am spending a lot of time on the mechanical design of the case, internal layout, power cables and component selection. As such, while I believe a stepped attenuator is excessive, it will be in-line with my level of quality of the finished product I want to achieve
You may want to consider the TKD 2PC65S stepped attenuator. See link below for a picture of the stereo and mono versions.
Quote from: DSK on 13 Jul 2006, 12:38 amYou may want to consider the TKD 2PC65S stepped attenuator. See link below for a picture of the stereo and mono versions. Hi Darren,Can you explain the advantages of going the dual-mono vs. going the stereo version and keeping my balance control?Regards,Andy
Andy,I had not considered damping my case quite to the level you suggested. I have been thinking about damping the transformers, but not a lot else. However I have braced the cases very well. I would like to incorporate a mild-steel barrier as a shield.
Have a look at endler attenuators. They have good review and is reasonable in price.http://www.positive-feedback.com/Issue19/endlerattenuators.htmHe even tell you what he uses and if you wanted, you can build one just like his.http://mysite.verizon.net/vze4c5pt/id2.htmlHave fun,Sam