Ashly MQX-2150 Quick start guide

MQX-2150
The graphic equalizer shall be stereo (2 channels). Each
channel shall consist of 15 bands centered on standard
ISO frequencies at intervals of 2/3 octave and covering
a frequency range of 25Hz to 16kHz. Individual bands
shall be activated by linear slide faders with a 25mm
travel, and a tactile center detent. The range of equaliza-
tion per band shall be switchable between ±15dB or
±6dB.
The equalizer shall have a gain of unity with all sliders
centered, and shall have a maximum in/out level of
+23dBu. Frequency response shall be ±.25dB 20Hz to
20kHz. Hum and noise shall be at least -96dBu and
SMPTE intermodulation distortion or THD shall be
less than 0.01% at +20dBu. Input impedance shall be
20k ohm balanced, 10k ohm unbalanced. Output
impedance shall be 200 ohm balanced, 100 ohm unbal-
anced. Inputs and outputs shall be active (tranformer-
less) balanced type on both XLR and 1/4 phone jacks.
Individual filters shall be Wein-bridge type and con-
nected in a summing circuit optimized for minimum
filter interaction and constant bandwidth at any slider
setting. Boost and cut characteristics shall be fully sym-
metrical, with the filter being electrically removed from
the circuit in the center (flat) position. Individual filters
shall be accurate to within 3% of indicated center fre-
quency and shall be non-adjustable to insure long term
accuracy.
The equalizer shall also include an 18dB per octave
high pass filter at 20Hz, internally selectable. A green
signal presence and red clip indicators shall show criti-
cal operating levels. Input gain shall be adjustable over
minus infinity to +6dB, and an overall EQ bypass
switch shall be included. The equalizer shall weigh 6.5
lbs net and mount in a standard 19 rack using 1 space
(1.75 high). The power requirement shall be 90-
125VAC, 50-60Hz, 10W. The unit shall be an Ashly
Audio MQX-2150.
TECHNICAL NOTES & SPECIFICATIONS
ARCHITECTS SPECIFICATIONS
MQX-2150 Miniature 15-Band Graphic Equalizer
Features:
 Constant "Q" design for low
ripple and minimum interac-
tion
Precision Wein Bridge Filters
Balanced XLRs & 1/4 TRS
Jacks on Inputs and Outputs
Selectable 15dB or 6dB Range
18dB/Octave High Pass Filter
Low Noise Design
Silent In/Out Switching
Signal Present and Clip LEDs
25mm Fader with Center-Off
Position
5-Year Worry-Free Warranty

Ashly Audio Inc., 847 Holt Road, Webster, NY 14580-9103, Toll Free [phone], Telephone [phone], FAX [phone]
Internet: http://www.ashly.com, email: [email protected]
Ashly manufactures a complete and comprehensive line of Graphic and Parametric Equalizers,
Electronic Crossovers, Power Amplifiers, Compressor-Limiters, Mixers, and
Amplifier Input Options. Please call, write or visit our web site for information on any of these Ashly Products.
Applications:
Churches, Studios, Concerts, Dance/Night Clubs, PA Systems, Auditoriums, Lecture Halls, Sports Stadiums, Outdoor Festivals
General Specifications MQX-2150
INPUT TYPE: Active Balanced
INPUT IMPEDANCE: 20K ohm Balanced, 10k ohm
Unbalanced
MAX. INPUT LEVEL: +23dBu
OUTPUT TYPE: Pseudo-Balanced*
OUTPUT IMPEDANCE: 200 ohm Balanced, 100 ohm
Unbalanced
MAX. OUTPUT LEVEL: +23dBu
CONNECTORS: 1/4 Phone jack and XLR
FREQUENCY RESPONSE: ± .25dB
TOTAL HARMONIC DISTORTION: < .01% @ +20dBu
IM DISTORTION (SMPTE): < .01% @ +20dBu
OUTPUT HUM AND NOISE: < -96dBu (20Hz-20kHz unweighted)
CROSSTALK: < -90dB, 20Hz-20kHz
FILTER TYPE: Constant Q/Wein Bridge
BANDWIDTH: 2/3 octave
TOLERANCE: ±3%
RANGE: ±6 or ±15 dB
SUBSONIC FILTER: 18dB/octave @ 20Hz (internally
switchable)
POWER REQUIREMENTS:
Nominal Voltage: 90-125VAC, 50-60Hz,
(240VAC available)
Minimum Voltage: 90VAC
Power: 10W
SHIPPING WEIGHT: 8 lbs
DIMENSIONS: 19L x 1.75H x 6D
Rear Panel MQX-2150
*Pseudo-balanced output is single ended signal with balanced impedance