RE: edp +

["Andy Ewen" <andy.ewen@btinternet.com>]

I'm measuring current and proposed units at the moment and I'll post some
results when I'm confident that they're correct.

-----Original Message-----
From: Kim Flint [mailto:kflint@loopers-delight.com]
Sent: 29 July 2002 19:56
To: Loopers-Delight@loopers-delight.com
Subject: Re: edp +

At 08:37 AM 7/29/2002, Mark Sottilaro wrote:
>I will experiment with that tonight.  I am sure I probably don't hear up
>around 19K so well, but I do have pretty good hearing for an old guy.
>I've got the gain at 12, and I thought I was getting a healthy signal into
>the EDP.

the problem would be a signal that was too healthy overloading the input
and engaging the limiter. That can also have a low-pass effect. You may
need to turn the input volume knob down a bit if that is the problem.

>More importantly than range, how flat is the overall response?  I know
>most gear can be pretty flat these days.

I don't remember the exact specs, but the digital path has a pretty typical
flat response that all digital gear has. I believe the passband ripple is
0/-.2dB. The low-end rolloff point is well below 20hz. Between there and
19khz it would be flat within 0/-3db. But if you pull in a bit from the
ends, it would be flat within 0/-.2dB (probably from 20Hz - 16Khz it would
be flat within 0/-.2dB, but that's a guess because it has been a long time
since I measured it.)

like Bret said, if you have the gains set up right, you shouldn't hear any
frequency problems.

kim

>On Monday, July 29, 2002, at 02:43  AM, Kim Flint wrote:
>
>>At 12:28 AM 7/29/2002, Mark Sottilaro wrote:
>>
>>>On Sunday, July 28, 2002, at 10:00  PM, Bret wrote:
>>>>Specifically what aspect of the fidelity of the EDP is inferior to the
>>>>repeater, for example signal to noise, frequency response, harmonic
>>>>distortion, intermodulation distorion, hum, etc?
>>>
>>>seems to be a frequency response issue.  The high frequencies are
truncated.
>>
>>according to an audio precision meter, the -3db point should be about
>>19kHz if the gains are set correctly.

______________________________________________________________________
Kim Flint                     | Looper's Delight
kflint@loopers-delight.com    | http://www.loopers-delight.com