
QX364 Specications
FEATURES
• High output, single or bi-amplied, two-way performance
• Broadband pattern control
• Ultra-ecient HF compression driver
• Four Phase Aligned™ 10-in cone transducers (vertical and horizontal pairs)
• Installation exibility, compact size
DESCRIPTION
The new QX300 Series design delivers great output and renowned broadband pattern control similar to the QX500 Series three-way, but in a new
compact two-way format. Its large 4-in voice coil high frequency compression driver makes it possible to cover the mid-range frequencies. Its high
output level makes it appropriate for medium throws in arenas and stadiums
or high-energy applications like live music venues or dance clubs. Its broadband pattern control lets it tame hostile acoustical environments like cathedrals or highly reverberant public spaces, and its exceptional delity pleases
the most critical listeners in concert halls and performing arts centers.
The QX364 has an ultra-ecient and unique high frequency compression
driver with a 60° x 45° constant directivity horn (one of six horn patterns
available, ranging from 60° x 45° to 120° x 60°). Four Phase Aligned™ 10-in
low frequency transducers arranged as vertical and horizontal pairs leverage
benecial interaction based on their spacing to extend pattern control.
Because the four low frequency transducers surround the high compression
driver symmetrically in the horizontal and vertical planes, response across
the full frequency spectrum appears to originate from a single point in space.
Users can select between single-amp and bi-amp operating modes. Additionally, each woofer pair is brought out to the input plate independently to
permit independent, series, or parallel wiring. Combined, these features oer
enormous installation exibility.
Six year warranty.
2-WAY FULL-RANGE LOUDSPEAKER 60° × 45°
See NOTES TABULAR DATA for details
CONFIGURATION
Subsystem:
Transducer Loading
LF 4× 10-in cone Phase-Aligned™
HF 1× 1.4-in exit, 4-in voice coil Horn-loaded
compression driver
Operating Mode:
Amplifier Channels External Signal Processing
Single-amp LF/HF DSP w/EAW Focusing
Bi-amp LF, HF DSP w/EAW Focusing
PERFORMANCE
Operating Range: 66 Hz to 20 kHz
Nominal Beamwidth:
Horz 60°
Vert 45°
Axial Sensitivity (whole space SPL):
LF/HF 109 dB 70 Hz to 20 kHz
LF 102 dB 66 Hz to 600 Hz
HF 111 dB 500 Hz to 20 kHz
Input Impedance (ohms):
Nominal Minimum
LF/HF 8 6.4 @ 175 Hz
LF1, LF2 (each) 4 4 @ 460 Hz
LF (total) 2 2 @ 460 Hz
HF 8 7.9 @ 720 Hz
High Pass Filter: High Pass =>70 Hz, 12 dB/octave Butterworth
Accelerated Life Test:
LF/HF 80 V 800W @ 8 ohm
LF1, LF2 (each) 60 V 900W @ 4 ohm
LF (total) 60 V 1800W @ 2 ohm
HF 35 V 150 W @ 8 ohm
Calculated Axial Output Limit (whole space SPL):
Average Peak
LF/HF 138 dB 144 dB
LF 135 dB 141 dB
HF 133 dB 139 dB
ORDERING DATA
Description Part Number
EAW QX364 2-Way Full-Range Loudspeaker Black 2040494
EAW QX364 2-Way Full-Range Loudspeaker White 2042376
EAW QX364-WP 2-Way Full-Range Loudspeaker Black 2042385
Optional Accessories
U-Bracket Horizontal QX3 Black [UBKT-QX3H] 2042189
Adapter Bracket QX Black [ACC-ABQX] 2036437
Weather Protection Shield [ACC-WPSQX3] 2042373
Eastern Acoustic Works | One Main Street | Whitinsville, MA 01588 USA | tel 800 992 5013 / +1 508 234 6158 | fax 508 234 8251 | www.eaw.com
DEC2014Part Number: RD0787 Rev C00EAW products are continually improved. All specications are therefore subject to change without notice.

QX364 Specications
2040476-CD-A_DWG_CUST_QX300
NOTES:
1. SYMBOL INDICATES CENTER OF BALANCE.
2. SYMBOL INDICATES MOUNTING POINT,
3/8-16THREADED HOLE.
3. WEIGHT APPROX. 94 lb [43 kg].
4. SHIPPING WEIGHT APPROX. 105 lb [48 kg].
ENCLOSURE
Material
Exterior Grade Baltic Birch Plywood
Wear resistant textured black paint
Finish
Powder-coated perforated steel
Grille
C
DATECHANGE NUMBERREV
3/6/13ECOWHT9288A
4
2.2
[55]
B
BACK
.5[13]
QX300 SERIES
INPUT
A
SCALE:
www.eaw.com
DWG CUSTOMER
TITLE:
1 1
SHEET OF
QX300 SERIES
[MECHANICAL SPECIFICATION]
A
REVISION:
0.050
2040476-CD
A
DRAWING NUMBER:
PRO ENGINEER
9.0[229]
"X"
6.0
[152]
3
VIEW A-A
18.5
[469]
A
FOR REF ONLY
TOLERANCE IN INCHES
DUAL [MM] DIMENSIONS
LINEAR ± 0.13 in / ± 3.3 mm
ALL DIMENSIONS ARE IN INCHES
UNLESS OTHERWISE SPECIFIED:
ANGLES ± 1°
(X.XX) = REF DIMS
TO BE SYMMETRICAL
NO TOLERANCE IMPLIED
DIMENSIONS ACROSS CENTERLINES
TSC = THEORETICAL SHARP CORNER
3 4
RIGHT SIDE
10.7
[272]
9.0
10.7[272]
[229]
A
54°
14.1[358]
THIRD ANGLE PROJECTION
DIMENSIONS APPLY TO BOTH SIDES
ALL RIGHTS RESERVED
LOUD TECHNOLOGIES, INC.
CONFIDENTIAL PROPERTY OF
HEREIN IS PROPRIETARY AND
THE INFORMATION CONTAINED
18.5
[470]
2
"X"
7.6 [193]
7.8 [198]
7.5 [190]
7.5 [190]
8.0 [203]
7.8 [198]
2
VIEW B-B
1.7
[42]
6.0
1
2.2[55]
B
19.9
[505]
[152]
B
40°
23.7
[602]
QX326
QX366
MODEL
23.7
QX364
QX394
[602]
QX399
QX396
1
FRONT
FOR CLARITY
13.4
[341]
C
B
A
NOTE: This drawing has been reduced. Do not scale.
Eastern Acoustic Works | One Main Street | Whitinsville, MA 01588 USA | tel 800 992 5013 / +1 508 234 6158 | fax 508 234 8251 | www.eaw.com
DEC2014Part Number: RD0787 Rev C00EAW products are continually improved. All specications are therefore subject to change without notice.

QX364 Specications
PERFORMANCE DATA
See NOTES GRAPHIC DATA for details
Frequency Response: Processed
LF = green, HF = black, Complete = blue
10
0
-10
-20
SPL (dB)
-30
-40
-50
Impedance
LF = green, HF = black, Complete = blue
100
Frequency Response: Unprocessed
LF = green, HF = black, Complete = blue
120
110
100
90
SPL (dB)
80
70
60
10 100 1000 20000
Frequency (Hz) Frequency (Hz)
Phase Linearity
Complete = blue
180
90
10
Ohms
1
Frequency (Hz) Frequency (Hz)
Beamwidth
Horizontal = orange Vertical = black
360
100
Degrees
10
1
100 1000 20000
-0
Degrees
-90
-180
10 100 1000 20000
Frequency (Hz)
Eastern Acoustic Works | One Main Street | Whitinsville, MA 01588 USA | tel 800 992 5013 / +1 508 234 6158 | fax 508 234 8251 | www.eaw.com
DEC2014Part Number: RD0787 Rev C00EAW products are continually improved. All specications are therefore subject to change without notice.

QX364 Specications
HORIZONTAL POLAR DATA
See NOTES GRAPHIC DATA for details
180˚
180˚
135˚
-135˚
135˚
90˚
-90˚
90˚
45˚
-45˚
45˚
90˚
135˚
100Hz
0˚
0˚
125Hz
160Hz
200Hz
250Hz
315Hz
400Hz
500Hz
180˚
-135˚
-90˚
90˚
135˚
180˚
45˚
-45˚
45˚
1600Hz
0˚
0˚
2000Hz
2500Hz
3150Hz
4000Hz
5000Hz
6300Hz
8000Hz
180˚
-135˚
135˚
-135˚
-90˚
90˚
-90˚
-45˚
45˚
-45˚
-135˚
-90˚
90˚
135˚
630Hz
0˚
800Hz
1000Hz
1250Hz
180˚
-135˚
-90˚
-45˚
45˚
-45˚
10000Hz
0˚
12500Hz
16000Hz
Eastern Acoustic Works | One Main Street | Whitinsville, MA 01588 USA | tel 800 992 5013 / +1 508 234 6158 | fax 508 234 8251 | www.eaw.com
DEC2014Part Number: RD0787 Rev C00EAW products are continually improved. All specications are therefore subject to change without notice.

QX364 Specications
VERTICAL POLAR DATA
See NOTES GRAPHIC DATA for details
180˚
180˚
135˚
-135˚
135˚
90˚
-90˚
90˚
45˚
-45˚
45˚
90˚
135˚
100Hz
0˚
0˚
125Hz
160Hz
200Hz
250Hz
315Hz
400Hz
500Hz
180˚
-135˚
-90˚
90˚
135˚
180˚
45˚
-45˚
45˚
1600Hz
0˚
0˚
2000Hz
2500Hz
3150Hz
4000Hz
5000Hz
6300Hz
8000Hz
180˚
-135˚
135˚
-135˚
-90˚
90˚
-90˚
-45˚
45˚
-45˚
-135˚
-90˚
90˚
135˚
630Hz
0˚
800Hz
1000Hz
1250Hz
180˚
-135˚
-90˚
-45˚
45˚
-45˚
10000Hz
0˚
12500Hz
16000Hz
Eastern Acoustic Works | One Main Street | Whitinsville, MA 01588 USA | tel 800 992 5013 / +1 508 234 6158 | fax 508 234 8251 | www.eaw.com
DEC2014Part Number: RD0787 Rev C00EAW products are continually improved. All specications are therefore subject to change without notice.

QX364 Specications
REV: DESCRIPTION:
REVISIONS
A00 NEW ISSUE PER ECOWHT9361 MJC
INPUT PANEL SIGNAL DIAGRAM
2042184 (A) LBL INPUT QX300 SERIES
WHITINSVILLE, MA USA
NC
BI-AMP INPUT
LF
− +
− +
A B C D
HFLF
BI-AMP MODE
LF WIRING
(OPTIONAL)
8Ω LOAD
2-Way, Single-Amp (LF/HF)
EAW
FOCUSING
AMP
XVR
2-Way, Multi-Amp (LF, HF) LF load = 8 ohms
HF
LF
LF
EAW
FOCUSING
AMP
AMP
8 ohms
LF
LF
HF
– (A)
+ (B)
– (C)
+ (D)
–
+
CONNECT JUMPERS
FOR PASSIVE OPERATION
PASSIVE
INPUT
ASSEMBLED IN WHITINSVILLE MA, USA
2-Way, Multi-Amp (LF, LF, HF) LF load = 2X 4 ohms
EAW
FOCUSING
AMP
AMP
AMP
4 ohms
4 ohms
LF
LF
HF
– (A)
+ (B)
– (C)
+ (D)
–
+
2-Way, Multi-Amp (LF, HF) LF load = 2 ohms
EAW
FOCUSING
AMP
AMP
2 ohms
LF
LF
HF
– (A)
+ (B)
– (C)
+ (D)
–
+
LEGEND
HPF: High Pass Filter for crossover –or– Recommended High Pass Filter.
LPF: Low Pass Filter for crossover.
LF/MF/HF: Low Frequency / Mid Frequency / High Frequency.
AMP: User Supplied Power Amplifier –or– Integral Amplifier for NT products.
XVR: Passive LPFs, HPFs, and EQ integral to the loudspeaker.
NOTES
TABULAR DATA
1. Measurement/Data Processing Systems: Primary - FChart: proprietary EAW software; Secondary - Brüel & Kjær 2012.
2. Microphone Systems: Earthworks M30; Brüel & Kjær 4133
3. Measurements: Dual channel FFT; length: 32 768 samples; sample rate: 48 kHz; logarithmic sine wave sweep.
4. Measurement System Qualication (includes all uncertainties): SPL: accuracy +/-0.2 dB @ 1 kHz, precision +/-0.5 dB 20 Hz to 20 kHz, resolution 0.05 dB; Frequency: accuracy +/-1 %, precision +/-0.1
Hz, resolution the larger of 1.5 Hz or 1/48 octave; Time: accuracy +/-10.4 μs, precision +/-0.5 μs, resolution 10.4 μs; Angular: accuracy +/-1°, precision +/-0.5°, resolution 0.5°.
5. Environment: Measurements time-windowed and processed to eliminate room eects, approximating an anechoic environment. Data processed as anechoic or fractional space, as noted.
6. Measurement Distance: 7.46 m. Acoustic responses represent complex summation of the subsystems at 20 m. SPL is referenced to other distances using the Inverse Square Law.
7. Enclosure Orientation: For beamwidth and polar specications, as shown in Mechanical Specication drawing.
8. Volts: Measured rms value of the test signal.
9. Watts: Per audio industry practice, “loudspeaker watts” are calculated as voltage squared divided by rated nominal impedance. Thus, these are not True Watt units of energy as dened
by International Standard.
10. SPL: (Sound Pressure Level) Equivalent to the average level of a signal referenced to 0 dB SPL = 20 microPascals.
11. Subsystem: This lists the transducer(s) and their acoustic loading for each passband. Sub = Subwoofer, LF = Low Frequency, MF = Mid Frequency, HF = High Frequency.
12. Operating Mode: User selectable congurations. Between system elements, a comma (,) = separate amplier channels; a slash (/) = single amplier channel. DSP = Digital Signal Processor.
IMPORTANT: To achieve the specied performance, the listed external signal processing must be used with EAW-provided settings.
13. Operating Range: R ange where the processed Frequenc y Response stays within -10 dB SPL of the power averaged SPL within this range; measured on the geometric axis. Narrow band
dips are excepted.
14. Nominal Beamwidth: Design angle for the -6 dB SPL points, referenced to 0 dB SPL as the highest level.
15. Axial Sensitivit y: Power averaged SPL over the Operating Range with an input voltage that would produce 1 W at the nominal impedance; measured with no external processing on
the geometric axis, referenced to 1 m.
16. Nominal I mpedance: Selected 4, 8, or 16 ohm resistance such that the minimum impedance point is no more than 20% below this resistance over the Operating Range.
17. Accelerated Life Test: Maximum test input voltage applied with an EIA-426B dened spectrum; measured with recommended signal processing and Recommended Protection Filter.
18. Calculated Axial Output Limit: Highest average and peak SPLs possible during the Accelerated Life Test. The Peak SPL represents the 2:1 (6 dB) crest factor of the Life Test signal.
19. H igh Pass Filter: This helps protect the loudspeaker from excessive input signal levels at frequencies below the Operating Range.
GRAPHIC DATA
1. Resolution: To remove insignicant ne details, 1/12 octave cepstral smoothing was applied to acoustic frequency responses and 1/3 octave cepstral smoothing was applied to the beamwidth and
impedance data. Other graphs are plotted using raw data.
2. Frequency Responses: Variation in acoustic output level with frequency for a constant input signal. Processed: normalized to 0 dB SPL. Unprocessed inputs: 2 V (4 ohm nominal impedance), 2.83 V (8
ohm nominal impedance), or 4 V (16 ohm nominal impedance) referenced to a distance of 1 m.
3. Processor Response: The variation in output level with frequency for a constant input signal of 0.775 V = 0 dB reference.
4. Beamwidth: Average angle for each 1/3 octave frequency band where, starting from the rear of the loudspeaker, the output rst reaches -6 dB SPL referenced to 0 dB SPL as the highest level. This method
means the output may drop below -6 dB SPL within the beamwidth angle.
5. Impedance: Variation in impedance magnitude, in ohms, with frequency without regard to voltage/current phase. This means the impedance values may not be used to calculate True Watts (see 9 above).
6. Polar Data: Horizontal and vertical polar responses for each 1/3 octave frequency band 100 Hz to 16 kHz or Operating Range.
EAW Focusing: Digital Signal Processor capable of implementing EAW Focusing.
Eastern Acoustic Works | One Main Street | Whitinsville, MA 01588 USA | tel 800 992 5013 / +1 508 234 6158 | fax 508 234 8251 | www.eaw.com
DEC2014Part Number: RD0787 Rev C00EAW products are continually improved. All specications are therefore subject to change without notice.