Quote:
Originally Posted by Vinnie R.
Hi Veloaudio,
With very high sensitivity IEMs, you definitely want to use the low gain setting (gain switch in the downward position). There are some IEMs that are just so sensitive (e.g. 124dB) that they will pick up on the noise floor of the amplifier (or the noise from the source). There are also some IEMs that are not super sensitive and quiet at low gain.
And then there are headphones like the K702s, HD650, Denon D5000, Grados, Ultrasones, etc. that are dead quiet with the Amphora (even on the high gain setting).
...snip...
Best regards,
Vinnie
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Hey Vinnie,
The specifications I've seen on the L3000 drivers is that the sensitivity is ~104 dB/mW which is close the Denon D5000. When I got home I performed a few experiments to pinpoint the noise. First with just my w3000's and the Amphora and this is definitely where the hiss is coming from. However, great news is that I must have been really tired or hearing things last night because the hiss is very minimal.
I've been on a big bluegrass kick lately and with the Amphora instrument placement is spot on. The sound is very rich with amazing presence. A very good extension of the Red Wine Isabellina.
All this and my Amphora has only 15 hrs of burn-in
-Matt