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A Taylor 814ce #guitar posted on a major resell site has stress cracks all over, likely from humidity related damage. They're asking about half as much as other similar postings. Don’t let this happen to your guitars. Musik Tent Instrument Humidors. http://origineer.com #acousticguitar
Made it 200 days without refilling the Musik Tent reservoir, while still maintaining very controlled humidity in a guitar sound hole.  How can the ambient humidity be so low when it's so humid outside? Humidity depends on temperature, which is why it's referred to as relative humidity. It's essentially the moisture content of the air relative to the temperature. Even if it's 90% RH outside, the humidity inside may be much lower due to air conditioning. Generally, the cooler the room, the lower the humidity. We tend to maintain around 74 to 75 deg F, so you'll see that the ambient (room) humidity hasn't exceeded 45% yet.  Removed my 414CE today, after months inside the Musik Tent, and was pleasantly surprised it was still in nearly perfect tune.  Initiated study in mid Jan when the ambient relative humidity was fluctuating in Pennsylvania between 17% and 35% (red). We compared a 2 guitar MT (blue) versus 2 Dampits (black). The Dampits peaked for only about 2 days before declining. At 127 days into the study, the MT reservoir still has enough water remaining to probably go another 2 months or so, maybe longer since ambient humidity is climbing as we head toward summer.
 Removed the 414CE for a about a day, and when I put back inside the Musik Tent the relative humidity dropped a few percent. And the ambient humidity is down around 19% RH the last few days. This is fine since I typically maintain my guitars between 45% and 50%, but I've slightly increased the filament position to show how easy it is to control the setting.  Graphed data showing 2 sponge soundhole humidifiers lasted a bit over 3 weeks before drying out, compared to Musik Tent expected to go several more months on current fill of distilled water. And no case needed. The second graph shows results inside the case, where humidity variation was as high as 20% RH on low ambient humidity days, with lowest reading at headstock and highest in soundhole. This seems to indicate the headstock area of the case is less insulated from the outside humidity than other areas of the case.   Have been away on business all week. Checked guitars this morning and both are at 49% RH, with the ambient humidity currently at 24% RH. With so little happening, the plan is to report about weekly at this point. The reservoir level is still high and has an anticipated several more months to go before refilling.  Not much to report. Humidity is holding at 49% and 50% RH in the guitar soundholes with an ambient at 26% RH. Notice the consistency of the Musik Tent humidity over the last month.  Happy Valentines Day. No change from yesterday other than ambient humidity is a bit lower at 22% RH. 
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AuthorDamon DeBusk is a multi-patented product designer, process and quality engineer, project manager, author, and inventor of Musik Tent Instrument Humidors and HumiForm Cigar Humidifiers. Archives
April 2020
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