This setting sets the input to be uniquely optimised for ultra high
impedance passive, non-powered pickups directly into EDB-2 VAP
The primary types of pickups optimal for +Hi include piezo cable or
co-axial cable passive pickups (Headway HE5 Passive), or flexible
“piezo film” pickups as offered by a number of manufacturers. Most
are flexible structure types, but some film pickups are encased in
rigid metal
A very high standard of shielding is required with the cable as short
as is possible. Suitable cable should have at least 80% screening,
preferably braided or conductive plastic shielding plus extensive
lapped wire screening
3.1.2 HI - HIGH Impedance Input: < 6.8 Meg Ohms
This setting sets the input to be optimised for commonly available
passive under saddle ceramic piezo pickups or contact/bug pickups
and Headway's The Band2 (for bowed instruments). It offers a
bright sound for passive magnetic sound hole pickups. Lead lengths
for the Hi impedance input setting are best kept as short as is
reasonably possible and with good screening, but no more than 6m
(18')
3.1.3 ACTIVE-LOW Impedance < 1 Meg Ohm
This input is optimised for active pickup systems, as require battery
power, or at line level. It is also used for some passive /low
impedance pickups, but on passive pickups there will be a treble
roll-off and hence a mellower, more middle biased sound. input
leads carrying active signals are not so sensitive to shielding quality
or cable length, so leads up to 10m (33’) in length are no problem
P. 30
To Next Page
Loading...