55 000 015 – Ed. E
Mix2000 - User Manual
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February 2001
Manuel Mix2000 (E) - Ed. E.doc
5.4. Power supply
The unit operates either from internal batteries or an external DC power supply.
When using internal batteries, the mixer operates from 8 LR6/AA-size batteries. The following types can
be used:
•
Disposable batteries; heavy duty alkaline batteries are highly recommended.
•
Rechargeable NiCd or NiMH batteries.
As external power, either an AC/DC adapter with adequate output voltage, or an external battery pack
(e.g. NP1 type packs) can be used.
In the particular case of an external battery pack, it is worth installing batteries in the unit also, as they
can provide backup in case the external battery gets discharged. At this moment, the operator may
disconnect the discharged external battery pack, replace the pack and reconnect it to the mixer. During
this replacement, the mixer will still operate, without any noise, because it switches over automatically to
the internal batteries while the external source is interrupted.
The power consumption and the autonomy of the mixer highly depend on the operational conditions, like
the type and number of phantom powered microphones, etc. However, the following guidelines can help
predict battery life:
•
When using only dynamic microphones (no phantom powering), more than 12 hours of operation
can be expected from a new set of alkaline batteries.
•
In the same conditions, the mixer draws less than 200 mA from an external 14.4 V DC supply
(like e.g. a 12-element NiCd battery pack).
•
The unit consumes nearly constant power (not constant current) when the input DC voltage
decreases; this means that the current drain increases while the batteries get low.
5.5. Dimensions and weight
Dimensions
240 x 190 x 43 mm (9.5” x 7.5” x 1.7”)
Weight
< 2 kg (without batteries)
5.6. Environment
The mixer operates from –20 °C to +50 °C ambient temperature (-4 °F to 122 °F).
It complies with the EC directives for safety and EMC.
•
Safety: compliance with EN60950
•
Susceptibility: compliance with EN50082-1
•
EMI: compliance with EN55022 (class B)
