Warm Up Period
Although the EPre will produce exceptional performance from the first time it is switched on, this
performance will improve as components settle in. The greatest improvement to performance will occur in
the first 50 hours of operation. After 100 hours or so the pre-amplifier performance will remain consistently
high.
Each time the pre-amplifier is switched on, the EPre will require at least 20 minutes to reach its optimum
operating conditions.
Partnering Equipment & Components
The Elysian Pre-amplifier is a perfect match for CAAS Audio's DAS and E100 mono-block power amplifiers.
The Elysian Pre-amplifier has a buffered output stage with a low output impedance and hence a good to high
damping factor, therefore interconnect cable choice and power amplifier choice may be less critical than with
some pre-amplifiers (specifically passive ones). Nevertheless, to maximise the audio performance, CAAS
Audio recommend keeping interconnect cable lengths to an absolute minimum and ensuring that both left
and right cables are identical in both length and type.
CAAS Link
CAAS Link is a proprietary control system design to allow connection and control between CAAS Audio
products. The EPre CAAS link incorporates a 12V trigger. When The EPre is in standby mode 12V DC is
applied to the CAAS Link port. When the CAAS Link cables are connected between the EPre and any CAAS
Audio power amplifiers, this connection will automatically power down the CAAS Audio power amplifier(s).
When the standby / on button is pressed and the EPre is switched ON, the power amplifier(s) will
automatically switch on as well.
Note: The main power switch must be ON for the CAAS link to operate.
Important: CAAS Link is only to be used with CAAS Audio products.
Ground Lift & Ground Loops
The Elysian Pre-amplifier is not fitted with a ground lift switch. CAAS Audio believe the practice of
disconnecting grounds to be detrimental to the overall system quality and in some instances dangerous. The
Elysian Pre-amplifier has been designed to minimise internal ground loops and reduce the effect of
connecting equipment ground loops. The Elysian Pre-amplifier should operate with no audible mains hum. If
mains hum (and / or ground noise) is present then the resulting noise is due to the preceding source
components, the power amplifier or mains pick up on unconnected inputs and not the Elysian Pre-amplifier.
Maintenance
The following routine maintenance should be performed on a periodic basis:
Clean the exterior surfaces of the unit with a soft, dry, lint-free cloth. Do not use alcohol, benzene, acetone-
based cleaners, or strong commercial cleaners. Do not use a cloth made with steel wool or metal polish. If
the unit is exposed to a dusty environment, a low-pressure blower may be used to remove dust from its
exterior.
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