sae audio LP428 Loudspeaker Processor User Manual
- June 5, 2024
- sae audio
Table of Contents
sae audio LP428 Loudspeaker Processor User Manual
Important Safety Instruction and symbol description
- Read these rules.
- Keep this instruction manual.
- Pay attention to all the warning.
- Follow these provisions.
- Warning: do not place the device in rain or wet environment, to avoid catching fire or eletric shock.
- Only dry rag can be used to clean.
- Do not block the air-vent. The installation should be according to manufacturer/s instruction.
- Do not install near the heat source which such as radiators, stoves and others(include amplifiers) can produce heat.
- Do not disable the security of the ground pin. This device should be linked to socket through safe ground connection.
- Take care of the eletric wire without trampling and squeezing, Especially pay attention to the plug, the power sockets and other connectors.
- The voltage which indicated on the rear panel must be used. If the device damage is caused by using improper voltage, it will repaired out of warranty.
When you see this sign, it means these are important information.
Dangerous without insulated sections are in the device, which can electrify people. So do not open the cover. The device must be repaired by professionals or returns to the manufacturer.
Foreword
Welcome
LP428 is a newly developed professional speaker management from our company.
And it can work with computer.Please download the control soft ware from our
company brand website. balanced input, and Matching impedance output. Please
read this manual carefully.
Unpacking
Please make sure if the appearance of the power amplifier was damaged or not
during the transportation after you opened the package. Please make sure the
preset voltage is matched with your local AC voltage (please check it on the
rear panel of the power amplifier). We suggest you retain the package in case
you need them for further transportation.
Important safety precautions
The design of SAE products has already taken the safe requirement in to
consideration and all the finished products have been tested under the
requirement of the government before sale. Users should read the notice in
this manual before operation as there is dangerous high voltage and
electricity inter the products. It will increase the chance of getting shock
by the electricity if the product falls down, recess in the appearance, soaked
or there were some parts loose internal. If there are problems above, please
turn off power immediately and send the defective units to local distributor
for service.
Front Panel Function
Front Panel
Onput signal led(A,B)
CLIP —> When the input signal overload lights
LIMIT —> When the input signal reaches a peak lights
0 → Distance the clipping value 0db
-6 → Distance the clipping value -6dB
-12 → Distance the clipping value-12dB
-24 → Distance the clipping value -24dB
SIG → When the signal input lights
Rear Panel
Cable connection requirements:
- Direct connection (the circuit is directly connected to the machine), one end needs to press 568A standard,Another end according to 568B standard;
- Connect to the switch.Both ends need to be connected by 568A(or 568B) network cables.
DSP Instructions
Note: The button function of this product, users can edit the changes through the software.
Set flow chart (see figure below), for reference only
Software Instructions
Software interface introduction
-
Equipment state
-
Main interface
X-OVER interface
-
OUTPUT interface
USB drive manual installation
Specifications
Model LP428
Input 4 ways Balanced Type.
Output 8 ways Imbalanced Type
Input Impedance bal 20k / unbal 10k
Output Impedance < 100 ohms.
Output Gain From +12dB to -48dB, 0.25dB increment
Input Gain From +12dB to -48dB , 0.25dB increment
Other Parameters
Frequency Response (-0.3dB) 20Hz – 20kHz
THD+N .s.0.008%
Maximum input delay 2s
Maximum output delay 50ms
Dynamic Range(A weighting) >115dB
Converts Frequency (high pass/ low pass) 20Hz – 20kHz, 1Hz increment
Centre Frequency (high pass/ low pass) 20Hz – 20kHz, 1/36 octave (19980
positions) increment
Minimun Load Inpedance 600 ohms
Maximum Output Level +18dBu (600 ohms load)
Filter Gain From +12dB to -12dB, 0.25dB increment
High Pass & Low Pass Filter Q value 0.2-25 adjustable, 0.1 increment/ 10
bands/1 filter each output channel, open and close
FIR Filter 8 x 800taps
Frequency Response Bessel/ Butterworth 6/12/18/24dB each octave, and Linkwitz-
Riley 24dB/ octave
Protect Function system can be set code which can prevent unauthorized person
operation.
Connectors
Input Section 3 cores XLR F socket
Output Section 3 cores XLR M socket
USB Connector Square
Power Socket 3 cores ICE socket
Input Limiter Threshold +24dBu to -48dBu
Output Limiter Threshold +12dBu to -48dBu
Start-up Time 0
Release Time 1-100
Sampling Rate 96kHz
Phase 180° phase
LCD Display 216 character type LCD display
Input Level Match 27 points, -30dB to clip
Output Level Match 6*7 points, -30dB to clip
Preset More than 100 PCS preconfigured/more than 100 PCS preconfigured
Language Options English, Germany, Spainish, French, Dutch
Version Information The version information of hardware, software, DSP module
Size/Weight
Product Contour Size 482x231x44.5 ( 1U )
Outer Packing Size 560x345x105 ( 1U )
Total Weight 4.7 kg
Power Consumption <10W
Power 6.5A power wire. 100-240V —/50-60Hz ±10%
Cautions: SAE reserves the right to make changes in specification without prior notice. The final specification is subject to the user manual.
Warranty
Disclaimer
SAE Audio Co., Ltd. is not responsible for any damage of loudspeakers or other equipment caused by negligence or improper installation.
SAE Audio Co., Ltd. offers 2 years limited warranty for this product.
SAE Audio Co., Ltd. Guarantees that this product has no material defect during
two years from the sales date; if the damage caused under the normal
installation and operation, SAE Audio Co., Ltd. shall change t he defective
component and repair faulty product for free according to this Quality
Guarantee Agreement. However, users must send the product to our factory or
any authorized maintenance points or designated distributors, affording the
re-paid freight, together with buying proof (including customer copy of
product warranty card and payment receipt or invoice copy).
As per this Quality Guarantee Agreement, the returned product must be judged
having manufacturing defect it self after our inspection. This agreement
doesn’t apply for products with damage caused by any wrong operation
negligence, accident, inappropriate installation or products with no date code
and sequence no or damaged ones beyond recognition.
SAE Audio Co., Ltd. shall not afford responsibility for any damage caused by
accident or indirect factors. The agreement authorized you specific legal
rights.
Address:
SAE Audio Co., Ltd. After Sale Department
No.39,East,Wenjiao Road,Heshun,Lishui,Nanhai,Foshan,Guangdong,China.
PC: 528241
Tel: 0757-8560-8331
Fax: 0757-8568-8191
Email: support@saechina.com
Brand website : www.saeaudio.com
Website: www.saeaudio.com
Manufacturer: Sae Audio Co.,LTD.
Sae reserves the right to make changes in specifications and products without
prior notice.
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