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May 4th, 2023, 8:46 am
Stuart,
An observation.
The E70V has an excellent "digital" attenuator in the AK4499 DAC. A 32bit DAC is designed to do both 20-24bit DAC + 8-12bit digital attenuator. Since the output of the DAC is an R2R Ladder DAC, very similar to the stepped attenuator version you have from P-E.
A thing to try is dropping the DAC output down 24dB with the volume control and maxing out the VC on the line stage. That is a really good way to see if there is any difference in sound quality.
I found using the E70V volume control and maxing out the HPA VC had better sound quality.
Just a thought.
Rich
May 4th, 2023, 9:11 am
ZOWIE! You've been busy dotting the i's and crossing the t's. The Miflex caps are a major find. They certainly transformed my speaker crossovers to beyond expectations.
May 4th, 2023, 2:22 pm
HAL wrote:Stuart,
An observation.
The E70V has an excellent "digital" attenuator in the AK4499 DAC. A 32bit DAC is designed to do both 20-24bit DAC + 8-12bit digital attenuator. Since the output of the DAC is an R2R Ladder DAC, very similar to the stepped attenuator version you have from P-E.
A thing to try is dropping the DAC output down 24dB with the volume control and maxing out the VC on the line stage. That is a really good way to see if there is any difference in sound quality.
I found using the E70V volume control and maxing out the HPA VC had better sound quality.
Just a thought.
Rich
That's a super easy "mod" to try. Thanks Rich, I'll let you know if the difference shows up in my rig.
Stuart
May 4th, 2023, 2:23 pm
SoundMods wrote:ZOWIE! You've been busy dotting the i's and crossing the t's. The Miflex caps are a major find. They certainly transformed my speaker crossovers to beyond expectations.
My thanks to Charlie for letting me know about them.
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