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Eastern Acoustic Works One Main Street Whitinsville, MA 01588 tel 800 992 5013 / 508 234 6158 fax 508 234 8251 www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. Part Number: NTL720 (Preliminary) November 2007
NTL720 Specifications
DESCRIPTION
The NTL720 is a very compact, self-powered, 3-way line array
loudspeaker module. Designed for the demands of professional
use, it is ideal for main PA in both portable and installed
applications, including theatres/auditoriums, corporate AV,
houses of worship, and live concert events.
One large MF/HF horn fills the entire face of the enclosure, better
maintaining horizontal pattern control throughout the MF/HF
passband. The curved aperture MF loading slots in the horn
decrease the percentage of open area at any point along the horn,
which greatly minimizes interference to the HF wavefront. The
side-mounted LF drivers are frequency shaded, providing proper
integration with the front-firing LF/MF drivers while supplying
additional LF output and extended horizontal pattern control.
Self-powering is supplied by three individual 500-watt Class D
amplifier modules precisely matched to their own digital signal
processors. Each DSP provides response correction as well as
EQ, delay, level, and delay for additional tailoring and alignment
control. Further, EAW’s Gunness Focusing™ digital filter
algorithms generate precise, complex, filter responses, resulting
in a powerful, horn-loaded loudspeaker that has the natural,
open, detailed reproduction of the best direct radiating designs.
EAWPilot control software provides comprehensive DSP control
as well as monitoring of amplifier status. Input selection is a
choice of analog, AES left/right, and EAW’s proprietary U-Net.
Communication connection options include U-Net and a USB
port on the back panel for interfacing with the DSP.
The FastLatch™ proprietary rigging system is extremely quick
and easy to use, in tandem with the very small and light enclosure.
Cabinet splay angles are selectable in 3-degree increments
between 12 and 0 degrees. Driver, horn and electronic
components - and even entire modules - can be replaced within
built array structures, whether flown or stacked.
Six year loudspeaker warranty. Two year electronics warranty.
3-WAY SELF-POWERED, 110
o
x 12
o
CONFIGURATION
Subsystem
Transducer Loading
LF 2x 6 in, 1.75 in voice coil Sealed
cone driver
LMF 2x 6 in, 1.75 in voice coil Sealed
cone driver
HF 6x 1 in dome tweeter
Operating Mode
Amplifier Channels Signal Processing
Tr-amp LF, LMF, HF DSP
ACOUSTICAL PERFORMANCE
Operating Range 75 Hz to 21 kHz
Output (Single Cabinet)
Peak Cont
Full Range 133 dB 127 dB
LF 122 dB
MF 122 dB
HF 122 dB
Nominal Beamwidth
Horz 110°
Vert 12°
ELECTRICAL PERFORMANCE
Input
Type Electronically balanced
Sensitivity 2.5V Sensitivity
Impedance 20 kohm balanced input impedance
Wiring Pin 1 chassis, Pin 2 +, Pin 3 -
Also, separate loop thru XLRM
DSP
Encoding 24 Bit, 48 kHz
Latency 2.97 ms latency
User Addressable DSP
Array Box
EQ 10 Parametric 10 Parametric
Delay 600 ms 1200 ms
Level 15 dB +/- 15 dB +/-
Amplifier 3x
Type Modified Class D
Maximum Output 45 V, 500 W @ 4 ohms
THD + Noise <0.1%
Dynamic Range >102 dB
AC Mains
115 V 230 V
Input 100 V to 120 V 220 V to 240 V
Frequency 50 Hz to 60 Hz 50 Hz to 50 Hz
Current: Idle 0.25 A 0.15 A
Fuse Rating 6.3 A Fuse 3.15 A fuse
Input Selection Analog, AES L, AES R, U-Net
Communication USB, U-Net 1, U-Net 2
CONTROLS HF Boost, Nearfield Contour
INDICATORS (LED) Signal Present HF Boost Selection
Limiter Active Nearfield Contour Selection
Clip Amplifier Status
U-Net Status Input Selection