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Old 5th May 2012, 02:33 PM   #1501
6L6 is offline 6L6  United States
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(...looks up Arctic Silver 5...) Ah! That's not an adhesive. Yep, looks good.

Also, that is a perfect bridge for a ground-breaker.
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Old 18th May 2012, 07:23 PM   #1502
exojam is offline exojam  United States
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6L6,

E-mail sent about the chassis. Thanks.

James
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Old 23rd May 2012, 07:12 PM   #1503
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Default Pearl 2 - Lack of "Attack"

Last weekend, I had a chance to substitute my Pearl 2 into a very revealing analog rig that was running a Musical Surroundings Phonomena. While some of the listeners commented that the Pearl 2 had a bit less edge and a deeper soundstage, the overriding comment was that the Pearl was lacking in attack on percussion, and was generally kind of slow and lazy sounding. The host played a particular jazz drum solo, and it sounded like two completely different recordings on the two phono preamps, not in the Pearl's favor.

I'm wondering if anyone else has done a A-B comparison like this, and if there may be something not quite right in my build? How does percussion sound on yours compared to other quality preamps?

Thanks,

Mark
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Old 23rd May 2012, 07:22 PM   #1504
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Funny you should mention the Musical Surroundings Phonomena. Saw a review of it just today.

Are the load and capacitace setting on both the Pearl II and the MSP set the same?
If you set the MSP to the same setting of the Pearl II, does the MSP sound different?
Did you build the Pearl II to suit your cartridge?

Just some thoughts.
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Old 23rd May 2012, 07:47 PM   #1505
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Quote:
Originally Posted by vdi_nenna View Post
Funny you should mention the Musical Surroundings Phonomena. Saw a review of it just today.

Are the load and capacitace setting on both the Pearl II and the MSP set the same?
If you set the MSP to the same setting of the Pearl II, does the MSP sound different?
Did you build the Pearl II to suit your cartridge?

Just some thoughts.
That's a good question - I forgot to mention the loading. The rig was running a Dynavector and the MS preamp was set to 30 ohms loading.

I had 47Kohm resistors in sockets in the Pearl 2, so after the first comparison, I pulled them out and ran it with no resistors on the inputs. So definitely not apples-to-apples, but I don't know if going from zero to 30 ohms would make that much of a difference.

Both preamps were set to 60DB gain.
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Old 23rd May 2012, 08:01 PM   #1506
6L6 is offline 6L6  United States
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Yes, loading of a MC cartridge makes that much difference. Especially if the other one had a bit of capacitance as well.
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Old 23rd May 2012, 08:06 PM   #1507
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Yes, loading of a MC cartridge makes that much difference. Especially if the other one had a bit of capacitance as well.
I was under the impression that LOMC carts were not sensitive to capacitance. The Pearl had the standard 100PF on the inputs.

The next time I'm at his house, I'll have to remember my spare resistors

Mark
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Old 23rd May 2012, 08:07 PM   #1508
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My experience is limited, but I have seen changes in sound when changing the loading on a Audio Research Phono Pre. Every change, no matter how small, made a difference in sound. I remeber having a preference that differed from the owner of the phono pre.

Is no resistor infinite resistance or was there a jumper inserted? How's that work?

Quote:
The next time I'm at his house, I'll have to remember my spare resistors
Yes and report back, please
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Last edited by vdi_nenna; 23rd May 2012 at 08:11 PM.
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Old 23rd May 2012, 08:11 PM   #1509
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Originally Posted by vdi_nenna View Post
My experience is limited, but I have seen changes in sound when changing the loading on a Audio Research Phono Pre. Every change, no matter how small, made a difference in sound. I remeber having a preference that differed from the owner of the phono pre.

Is no resistor infinite resistance or was there a jumper inserted? How's that work?
Inserting a jumper would short the inputs and mute the signal. There was no resistor in R19 or R20.
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Old 23rd May 2012, 08:31 PM   #1510
6L6 is offline 6L6  United States
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Quote:
Originally Posted by McQuaide View Post
The Pearl had the standard 100PF on the inputs
Probably want to remove that, or verify that it's the proper loading for the cartridge in question.

Also remember that the piece of audio equipment that sounds 'more different' is usually the one people choose in an A-B comparison. Many times that one isn't that great in the long run.
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