User guide
7
Installation
In your System
While the SP20 does not dissipate an unusual amount of heat, it is important 
that  it  be  provided  with  reasonable  airow  to  assure  long,  trouble-free 
operation. In addition, the following installation guidelines will help insure 
maximum sonic performance as well as reliable service:
Operate unit in upright and horizontal position, preferably on solid, non-
metal shelving.
Do not stack the preamp on top of a power amplier: not only could this 
cause overheating, but hum may be introduced into the preamp from the 
proximity of the amplier’s power transformer. 
Do not stack components or other objects directly on top of the SP20.
Do not place or operate your preamp on a soft or irregular surface such as 
a rug. This will prevent proper ventilation.
Do not operate your preamp without the top and bottom covers installed.  
These  are  required  both  for  safety  as  well  as  shielding  from  interference 
(except in service operations by qualied personnel).
Ensure a minimum of 8-10” clearance above the unit when placed on 
shelving.










