Interesting rule of thumb. An exception would be the Hi-MD units
that operate on one AA, 1.5 volt battery. Can a voltage upverter be
used? And the phantom circuits can cause fits too. Rob D.
=3D =3D =3D =3D =3D
At 3:15 PM +0000 4/8/10, Raimund wrote:
>Yep,
>
>These findings support the general rule of thumb that the preamp
>noise performance of a recorder is primarily determined by its
>supply voltage or the size of its batteries (assuming that the
>designers did not made a major mistake). Once the supply voltage is
>at least about 6 volts, it is relatively easy for the designers to
>select suited low-noise op amps.
>
>Regards,
>Raimund
>
>
>Rob wrote:
>
>> Wow.
>> I have to type it again, Wow.
>>
>> Six "transparent" pres for $500 more than two. Two more with an
>>external pre.
>>
>> Considering that your input your measurements for lower cost
>> recorders usually disappoint us, this defies "too good to be true."
>> A very significant finding. What a great resource you are! Rob D.
>
>
--
|