Specifications

10
AMPLIFIERS
ISA Series
Installed Sound
The ISA amplifiers are ideal for fixed installations when
multi-way loudspeaker systems are required. Taking
advantage of the DataPort V2 Lite connection, you
can attach our amplifier accessories to provide an
economical solution for crossover and subwoofer
filtering without the expense of a separate DSP device.
The ISA Series also provides “Ti” models, which
incorporates output isolation transformers for 70/100-
Volt distributed loudspeakers requiring them. The 3RU
ISA Series offers models capable of driving 2Ω loads
and models with selectable 25, 70, and 100 volt
distributed systems.
• Rear-mountedgaincontrolswith2dBdetentsprovide
repeatable settings.
• Independent,defeatablecliplimitersreducedistortion
and protect speakers.
• Selectablehigh-passfiltersprotectagainsttransformer
saturation and driver overexcursion.
• IncludesextensiveDC,infrasonic,thermaloverload,and
short circuit protection.
• DataPortV2isincludedforconnectionof
DPV2-compatible signal processing accessories.
(XC-3, LF-3 and SF-3.)
• Connectors:Input–XLR/Fand3-pinEuroblock.
Output – barrier strip.
• The“Ti”versionshavethecapabilitytopoweroneoutput
channel at low impedance (8, 4, or 2-ohm) while the
other can power high impedance (25, 70, 100V).
• TheDataPortconnectoronthisamplifierisnot
compatible with Q-Sys, BASIS or CM16a
ISA Series Watts per channel
Model 70 V
*
/100V 8Ω
**
4Ω
**
2Ω†
ISA280 — 185 280 430
ISA450 — 260 425 700
ISA750 — 450 650 1200
ISA1350 1500†† 800 1300 2000
ISA300Ti 300 185 280 430
ISA500Ti 500 260 425 700
ISA800Ti 800 450 650 1200
*50 Hz – 16 kHz, 0.5% THD
**20 Hz – 20 kHz, 0.1% THD
†1 kHz, 1% THD
††Direct Output, 70V, less than 0.1%
THD, 20 Hz – 20 kHz, +0/-0.3 dB
RoHS