« Reply #3 on: February 12, 2005, 06:52:26 PM »
I read a bunch of the threads - and it seems unclear...are these things 9 or 7.2 volts...?
One the Wal-mart website, they only list one model - spec says 7.2
Do the stores have other models??
I just bought two of these batteries on ebay (in Canada). They were some kind of "open box" from Circuit City (USA) and they were labeled "ESA" brand. They say 9V, 5400mAh. I measured and they are 9.0V under load. Exactly! I noticed some high pitched whine under load. I'm guessing there is a *switching* (ie., efficient) regulator in there, either converting 7.2 (2 Li cells) or 10.8 (3 cells) to 9V. Anyway, they seem to work, and introduce no extra noise in my UA5. I won't know the quality until I run one dry though. So, there do appear to be different models.
BTW, has anyone measured the Phantom voltage of the UA5 (w/o load)? People claim you can use 7.2 to for12.0V in this thing, but I would be careful bee I put mics on.
Richard
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Mics: Sennheiser MKE2002 (dummy head), Studio Projects C4, AT825 (unmodded), AT822 franken mic (x2), AT853(hc,c,sc,o), Senn. MKE2, Senn MKE40, Shure MX183/5, CA Cards, homebrew Panasonic and Transsound capsules.
Pre/ADC: Presonus Firepod & Firebox, DMIC20(x2), UA5(poorly-modded, AD8620+AD8512opamps), VX440
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