Apogee APL-10 Spécifications télécharger pdf (Page 11)

Max. Continuous Amperes

APL-10 / APL-12

APL-SB

Typical Program Conditions

100 / 120V AC

19.6 ARMS

14 ARMS (

OR LESS)

9.8 ARMS

7 ARMS (

OR LESS)

240V AC

(3) Current Requirements

All power amplifiers require sufficient current for proper operation and the

amplifiers designed into Apogee powered loudspeakers are no exception.

Chart #1 shows the required current for one APL-10, -12, or -SB at three

standard international working voltages (120, 240, & 100V AC). Because cur-

rent drain is ultimately a function of the program source, Chart #1 shows

both the theoretical maximum, and what can be expected under typical high-

level program conditions:

We recommend powering no more than one APL-10 or one APL-12 from a

single 20A, 120V AC circuit, and no more than two APL-10s or APL-12s from

a single 20A, 240V AC circuit, thereby allowing a margin for line loss and/or

lower than normal voltages.

For the APL-SB, we recommend powering no more than two units from a

single 20A, 120V AC circuit, and no more than four units from a single 20A,

240V AC circuit, thereby allowing a margin for line loss and/or lower than

normal voltages.

To determine the total current requirement for a system of powered loud-

speakers, simply add their Maximum Continuous RMS Currents together,

then calculate a safety margin of 25% or greater.

If special length AC cables are required for your powered speakers, they

should be constructed of durable, high-quality portable cordage such as S,

SO, or SJO type.

Chart 2 provides the basic guidelines of The National Electric Code for four

common gauges of copper wire related to permissible load in amperes.

Chart 1

Max. Continuous Amperes

Typical Program Conditions

100 / 120V AC

9.8 ARMS

7 ARMS (

OR LESS)

4.9 ARMS

3.5 ARMS (OR LESS)

240V AC

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 39 40

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