Pass Aleph-3 questions

Something has come up in this thread that i want to discuss, but it is of another subject matter. As such, i'm going to follow my own advice and start a new thread so that we can stay "on topic" here. Sean
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david, as we've prewiously discussed, both here and *off* a-gon, i tink perhaps rogue's claim of 100 ohms output impedence for their 99 preamp is a bit optomistic. and, yer speeks' efficiency of 92db means that the aleph-3, which should be able to handle lo-impedence loads, will be able to drive *sustained* 107db levels w/o clipping. pretty loud, imho - especially in a real-world-sized room, where it may be even 3-6db louder. as we discussed off-list, assuming the pre's output impedence *isn't* the problem, perhaps yer speeks are hardening/compressing at these loud levels...

doug s.

Dud,Im starting to swing your way with your concerns of the possiblilty the 99's impedence specs are tainted.It could be my metal dome tweeters also or a combination.Im curious if the headphone output would be a clue.I have to turn it up to at least 3 oclock to get decent volume with my headphones.The 99 drives them alone,the amp has to be off for the jack to work.Would this be an indication of something wrong in regards to the reported 100 ohm output of the 99?

defeating the speaker outs w/the headfone input doesn't necesarily indicate a problem w/output impedence imho - it could yust be a conwenience thing - when yure listening to headfones, it could be assumed that not wanting to disturb others is a possible motivation for the headfone-listening, & therefore ewe woodn't want the speakers active when listening thru the headfone yacks...

doug s.