Click title to read one, or click date to read all below it.
09-27-10
If you have it narrowed to 2, get both, return or resell the ... Rtn1
09-28-10
Both are first rate items from first rate folks. i'd guess ... Blindjim
09-28-10
i can tell you this: dan wright has always been there for ... Horseface
09-28-10
I'll second horseface's post--no experience with bat but dan ... Dodgealum
09-28-10
I love my modwright preamp! i have owned several different ... Mofimadness
09-28-10
I auditioned both preamps thoroughly in my system (thiel 3.7 ... Teeshot
09-29-10
I had the single box 36.5 side by side with a dodd battery a ... Bugredmachine
09-29-10
what he said. Swampwalker
09-29-10
I thought about the trl dude as well, but isn't that a singl ... Roor
09-29-10
Bugredmachine: i've never heard either of these tubes, or e ... Roor
09-29-10
Roor, trl dude is a single ended design and paul can add all ... Knghifi
09-29-10
Imo, neither the modwright nor the bat will produce a sound ... Tvad
09-29-10
Tvad: i appreciate the input. do you think a balanced trl d ... Roor
09-29-10
having never heard one, i can't say. however, you should be ... Tvad
09-30-10
Well... if one cannot tell the difference between 3 entirel ... Rtn1
09-30-10
that's not what i wrote. i did not say the preamps wouldn't ... Tvad
09-30-10
I think these preamps would have a world of difference betwe ... Rtn1
09-30-10
Rtn1, your comment about the right system is pertinent, and ... Tvad
09-30-10
Fyi, last time i talked to paul, he has developed a fully ba ... Knghifi
09-30-10
Please consider that the xo.2 has a decent resale value, so ... Roor
09-30-10
Onward ho, roor! Tvad
10-01-10
Roor- when you gonna upgrade those speakers? i'd do that b ... Erndog
10-01-10
Erndog: yes, i want to upgrade speakers as well, and am nego ... Roor
10-01-10
Roor, since the output impedance spec of the dude is not pro ... Tvad
10-01-10
Btw...i once owned a lamm l2 reference preamp which i used w ... Tvad
10-01-10
Tvad: was there any hiss or noise with the l2 reference with ... Roor
10-01-10
Greg, i have no information specific to lamm being noisy wit ... Rtn1
10-01-10: Almarg
Since the output impedance spec of the Dude is not provided, it seems to be a situation where you'd have to hear the preamp in your system to decide if it matches or not. You'd want to be listening for rolled-off highs. I don't know what a resistor pull-down XLR is.
The BAT VK-51SE was tested by Stereophile, and the output impedance was measured at 410 ohms (200 ohms spec'd by BAT), and rising to 4700 ohms at 20K. Grant, I think you meant to say 20Hz, not 20K, and that what should be listened for is rolled off lows, not highs.
I don't know what a resistor pull-down xlr is either.
The posts by Atmasphere starting here provide some insight into the output impedance of the Dude. It sounds like a major contributor to its output impedance is the volume control and its setting (he indicates that the control is located at the output), with the output coupling capacitor perhaps being no more than a secondary factor.
Since the volume control is essentially resistive, rather than capacitive, its contribution to output impedance would be pretty much constant with frequency. So high output impedance would be much less of a concern than in the more common situation where it is due primarily to the output coupling capacitor, which would cause the output impedance to be much higher at very low frequencies than at higher frequencies. It is the DIFFERENCE in output impedance between those frequencies that causes low frequency rolloff when output impedance is too high relative to power amp input impedance.
Best regards,
-- Al
Almarg (System | Threads | Answers | This Thread)
10-01-10
I should add to my previous post that high output impedance ... Almarg
10-01-10
in my system, on 93db speakers, hiss was not a problem with ... Tvad
10-02-10
Roor, why the pre-amp search if you are upgrading your pass ... Agear
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