L-ACOUSTICS V-DOSC Manual Version 4 6/29/2005 Page 27 of 158
AMPLIFICATION
(18) L-ACOUSTICS LA48a
Compact, light weight two-channel power amplifier (2 rack units, 10 kg), 1300 watts per channel into
8 ohms, 2300 watts per channel into 4 ohms.
Figure 13: L-ACOUSTICS LA48a Power Amplifier
Note: for full details see the LA48a user manual (available for download on:
www.l-acoustics.com)
AMPLIFIER RACKS
(19) RK12U
12 rack unit amplifier rack (empty). Light-weight aluminum space frame construction, internal
shock mounting, standard rack rails, provision for rear support of amplifiers, transparent lexan
doors that store inside the rack, high impact resistance polyethylene cover (no external case
required). Recessed Aeroquip flytrack sections for flown applications.
(20) RK122a
RK12U supplied with PADO2a, PADOSEC, 2U drawer, 2U blank panel, rear support kit for 2
L-ACOUSTICS LA48a power amplifiers (LA48a power amplifiers not included).
(21) RK124a
RK12U supplied with PADO4a, PADOSEC, rear support kit for 4 L-ACOUSTICS LA48a power
amplifiers (LA48a power amplifiers not included).
(22) PADO2a AMP PANEL
Amplifier panel supplied with RK122a suitable for 2 amplifier rack configuration. Single 8 pin
female CA-COM connector for loudspeaker connection (in parallel with 4x Speakon
connectors), two male 19 pin CA-COM connectors for signal distribution (input/through),
COMB connector (for selecting 2-way, 3-way or subwoofer operating modes); 4x male XLR
and 4x Speakon fanouts on the internal side (for connecting to amplifier inputs and outputs).
Note: PADO stands for PA
TCH DOSC
(23) PADO4a AMP PANEL
Amplifier panel supplied with RK124a suitable for 4 amplifier rack configuration. Dual 8 pin
female CA-COM connectors for loudspeaker connection, two male 19 pin CA-COM
connectors for signal distribution (input/through), 2x COMB connectors (for selecting 2-way, 3-
way or subwoofer operating modes); 2 pairs of 4x male XLR and 4x Speakon fanouts on the
internal side (for connecting to amplifier inputs and outputs).
(24) COMB CONNECTOR
Routes desired input lines from the male 19 pin CA-COM connector to the appropriate
amplifier inputs allowing RK122a or RK124a amplifier racks to be configured in 2-way (dV-
DOSC, ARCS), 3-way (V-DOSC, KUDO) or subwoofer (SB218) operating modes (COMB
connectors: D2WAY, D3WAY and DSUB, respectively). Additional COMB connectors are
available for use with 2- or 3-way format systems (D2WA, D2WB, D2WSTEREO, D3WA,
D3WB, DSUBA, DSUBB) and a COMB connector kit for subwoofer array signal processing or
for powering passive enclosures (DSUBTK).
(25) PADOSEC
Mains distribution panel, 32 amp connector, 5x AC receptacles
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