Ashly LX-308B Quick start guide

LX-308B
The unit shall be an eight channel stereo
line-level mixer in a one rack space metal
chassis. Each channel shall have a pair of
balanced 1/4” input jacks with level and pan
controls on the front panel. Channels 1 and
2 shall be switchable to accommodate either
microphone or line level sources. An input on/
off switch with a LED status indicator shall be
provided for independent channel muting.
The unit shall have separate Left and Right
clip indicators to monitor all internal amplifiers
for any possible overload conditions. There
shall be Left and Right outputs on 1/4” TRS
phone jacks which can be used as balanced or
unbalanced. In addition, there shall also be an
independent Mono summed output on a sepa-
rate 1/4’ TRS jack. Left/Right level control,
variable panning, and a master stereo mute
switch must be provided on the front panel, as
well as an overall adjustment for the indepen-
dent Mono summed output.
There shall be a stereo headphone jack with
separate level control located on the front
panel of the unit. Pre-Master sub inputs and
outputs for linking with other mixers must be
located on the rear panel. The unit shall have
the ability to operate as an eight input stereo
or a sixteen input mono mixer by patching
cables accordingly.
The mixer shall provide an unity gain signal
path when all level controls are set at twelve
o’clock.
Distortion shall be less than 0. 02 % Total
Harmonic Distortion at +20dBu (20Hz to
20kHz) and less than 0. 01% Intermodulation
Distortion (SMPTE) at +100dBu (20Hz to
20kHz.) Hum and Noise shall be less than -
98 dBu residual output noise when all levels
are set at minimum, and less than -90dBu
at nominal (unity) gain. Frequency Response
shall be ± 0.2dB, 20 Hz-20 kHz. Voltage gain
of the mixer shall be 25dB ± 1dB when mea-
sured from channel input to master output
when levels are set at maximum. Voltage gain
when channel one or two are in mic posi-
tion shall measure 56dB ± 1dB at the master
outputs. Crosstalk of the unit shall be less
than -80 dB when measuring adjacent inputs
or input to output at 1kHz. Dimensions of
the model shall be 19” wide x 1. 75” high x
8. 0” deep. The shipping weight shall be 13
pounds. The mixer must be made in America
and covered under a full Five Year warranty.
The mixer shall be the model LX-308B, manu-
factured by Ashly Audio, Inc. of Webster, New
York. No other unit shall be acceptable unless
data submitted from an independent test labo-
ratory verifies that the above specifications
are fully met or exceeded.
ARCHITECTS SPECIFICATIONS
TECHNICAL NOTES & SPECIFICATIONS
LX-308B Stereo Line Mixer
Features
• Balanced Inputs and Outputs
• Eight Stereo or Sixteen Mono Inputs
• Individual Left, Right and Mono Outputs
• Channel 1 & 2 Selectable Mic or Line
Inputs
• Unity Gain Signal Path Throughout When
all Level Controls are Set at Twelve O’
Clock
• L & R Level Meters w/Clip Indicators
Monitor all Internal Amplifiers
• Pre-Master Sub Inputs & Outputs for
Linking Multiple Mixers
• Individual Channel Mute Switches
• Stereo Output Mute Switch
• Stereo Headphone Output with Level
Control
• Safety/Compliance: cTUVus/CE, RoHS

Input Specifications: (unless otherwise stated, specification conditions are 150Ω source, all levels nominal, outputs into 2.7KΩ or greater)
INPUT BALANCED/ LOAD FOR USE WITH MAX. INPUT LEVEL CONNECTOR
UNBALANCED IMPEDANCE NOMINAL BEFORE CLIP
LINE INPUTS
(1-2) Balanced > 20KΩ 600Ω +21dBu Left & Right 1/4” Phone Jacks
(3-8) Balanced > 20KΩ 600Ω +21dBu Left & Right 1/4” Phone Jacks
MIC INPUTS
(1-2) Balanced > 20KΩ 600Ω -10dBu Left & Right 1/4” Phone Jacks
SUB INPUTS
(L,R) Unbalanced > 10KΩ 600Ω +22dBu Left & Right 1/4” Phone Jacks
Ashly manufactures a complete and comprehensive line of Analog and Digital Signal Processors, Power
Amplifiers, Mixers, and Amplifier Input Options. Please call, write or visit our web site for information on
any of these Ashly Products.
Applications:
Broadcast Studios, Mobile Broadcast Units, Satellite Downlink Distribution, Boardroom Sound Systems,
Multimedia Sound Distribution, Concert Sound, Dance/Night Clubs, Bowling Alleys, Churches, Auditoriums,
Lecture Halls, Sports Stadiums, Outdoor Festivals.
Specifications LX-308B
THD: < .02 % at +20dBu, 20Hz-20KHz
IMD (SMPTE): < .01 % at +20dBu
HUM & NOISE: (20 Hz-20 KHz noise bandwidth):
< -98dBu residual output noise, all levels at minimum
< -90dBu MASTER OUT, MASTER LEVEL and one INPUT LEVEL at nominal (unity gain)
FREQUENCY RESPONSE: ± 0.2dB 20Hz-20KHz
VOLTAGE GAIN: 0.0 ±1dB —CH. INPUTS or SUB INPUTS to MASTER OUTPUTS, levels at nominal
25 ± 1dB —CH. INPUT to MASTER OUTPUTS, levels at maximum
56 ± 1dB —CH. 1 or 2 INPUT in MIC position to MASTER OUTPUTS
18 ± 1dB —SUB INPUTS to MASTER OUTPUTS, MASTER LEVEL at maximum
CROSSTALK: < -80dB adjacent inputs or input to output at 1KHz; < -60dB adjacent inputs
or input to output at 20KHz
VU METERS: Two 6-segment LED meters. 0VU = +4dBu
PEAK INDICATORS: Left and right peak CLIP indicators illuminate when any internal
signal amplifier is 3dB below clipping
POWER REQUIREMENTS: 100 -240VAC, 50-60Hz, 12 watts
DIMENSIONS: 19” L x 1.75” H x 8.0” D
SHIPPING WEIGHT: 13 lbs. maximum
Rear Panel LX-308B
Output Specifications:
INPUT BALANCED/ LOAD FOR USE WITH OUTPUT LEVEL CONNECTOR
UNBALANCED IMPEDANCE NOMINAL NOMINAL MAX BEFORE CLIP
MASTER OUT
(L,R) Servo-Balanced < 200Ω 10KΩ lines +4dBu +22dBu 1/4” Phone Jacks
MONO OUT
SUB OUT
(L, R) Unbalanced < 200Ω 10KΩ lines -4dBu +22dBu 1/4” Phone Jacks
Notes: 1. 0 dBu = 0.775 Vrms 2. Sensitivity is input signal level which will produce +4dBu out with all levels maximum
Ashly Audio Inc., 847 Holt Road, Webster, NY 14580-9103
Toll Free [phone], Tel: [phone], Fax: [phone]
www.ashly.com, e-mail: [e-mail]