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Old 12th February 2006, 07:02 PM   #11
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Joy...

Today it works fine with the preamp.

Plenty of volume. Time to get started on the NP Twisted Pear Bosoz!

Thank you Choky and MP for coverin' my back!
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Old 12th February 2006, 07:07 PM   #12
jleaman is offline jleaman  Belgium
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Quote:
Originally posted by chipco3434
I will try it again tomorrow with the pre... I don't think there's much coming out of the analog cdrom.

Wouldn't the A30 be NOTICABLY louder than the Mini? The A30 has considerably less output than my LM3875??????


Well the a30 has more power but do you really need it ? I have noticed 2 things when using my 4 aleph mini's.

1) When using a passive pre-amp and a nice line stage from my buffer/dac they are pretty damn loud.

2) When using a pre-amp they get even louder. Not to clarify i have 4 mini a's running at 20V rails probably ( guess ) about 15 watts x 4 to 2 tower speakers in bi-amp mode. ID have to say that these little mini a's are Freaking loud and clean.. I maxed mine out and still clean all the way up to full. Im glad i have 15 watt amps instead of 100 watt ones.

When i get my new pre-amp from Russ White i bet these will sound even cleaner and better..And even louder. I noticed that the mini a's have lots of power if you have a good pre-amp with lots of gain.

J
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Old 12th February 2006, 10:58 PM   #13
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When the RC to ground at the output is cooked, it always
means high power ultrasonics, almost always system oscillation.
I say system because an amplifier's internal oscillation is almost
always at low power levels, but if you bleed the output of an
amp back to the input, you often see full power up around
100 KHz or so. Most often this is due to bad input grounding on
the cables. It could also be the MOX putting out power
ultrasonics.
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Old 12th February 2006, 11:16 PM   #14
Zen Mod is offline Zen Mod  Serbia
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Quote:
Originally posted by chipco3434
Joy...

Today it works fine with the preamp.

Plenty of volume. Time to get started on the NP Twisted Pear Bosoz!

Thank you Choky and MP for coverin' my back!

forgot to write one thing:
with not so efficient spks,watt difference between various amps will be smaller,in comparison with more efficient spks used for same test;

interesting- with that more efficient spks all other differences between various amps will be easier to hear.....

some of these phenomenons are easy to explain logically,physically and electrically,but some are not so easy

for instance-if you use pair of KH, you can't find two same sounding amps;
even difference of few watts between (in all other areas similar) two amps is pretty easy to hear;
not to mention differences as dynamic potential etc and all other fifi mumbo jumbo............
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Old 12th February 2006, 11:33 PM   #15
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Quote:
Most often this is due to bad input grounding on the cables.
Thanks Nelson... another mystery solved.

Do you mean that the RCA cables on the input could have made inadequate contact? I cooked the RC with the pre, not the MOX.

Feel free to do the Samuel Jackson thing on me...

"Do you speak English ^$@%&^$*? Do you speak English?

...but I want to be perfectly clear on this point.

Better scope it, eh?

Choky...
It is pretty easy to discern the power difference between the Mini and the 30 at this point.
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Old 13th February 2006, 08:00 PM   #16
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Quote:
Originally posted by chipco3434
Do you mean that the RCA cables on the input could have made inadequate contact?
More specifically, the ground connection. An ungrounded
shield is often a great antenna.
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Old 13th February 2006, 08:05 PM   #17
jleaman is offline jleaman  Belgium
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Quote:
Originally posted by Nelson Pass


More specifically, the ground connection. An ungrounded
shield is often a great antenna.

OH OH OH pick me.. I can vouch this
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