The
Acoustic Dimension attenuators are high quality
stepped 41-position attenuators. They are
designed for maximum sonic quality, accuracy
and reliability. This makes them the first
choice for audiophile applications.
Not commonly known, but in available attenuators
the switching action in fact consists of two
separate pressure contacts. A pressure contact
from outer ring (input) to the whipper and
from whipper to the inner ring (output).
After
the example of high current rheostats, we
have replaced the pressure contact from whipper
to output with a fixed flexible wire. This
is a labor extensive solution, but results
in a much more open, transparent and stable
attenuator.
The
attenuators are available in two versions.
The series attenuator and the ladder attenuator.
The
series resistor networks consist of 41 non-inductive,
low noise, SMD metal film resistors. The PCB
design combined with the special resistors
result in low series inductance and low stray
capacitance. The result is a very wide bandwidth.
There has been special care taken to ensure
the durability. The contacts are made from
silver and will maintain their specifications
even after long time of use.
Specifications series
attenuator:
• 41 steps (1,5
dB per step)
•
durable audiophile silver
contacts
•
non-inductive SMD resistors
•
aluminum diecast body
•
precision ball bearing
support
•
available values 10kOhm
and 100kOhm
A
ladder attenuator switches pairs of resistors.
Regardless of the attenuation,
there are always only
two resistors in the signal path.
