sae audio K8 K Series Professional Power Amplifier User Manual
- June 4, 2024
- sae audio
Table of Contents
Sae audio K8 K Series Professional Power Amplifier
Important Safety Notice
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Read the rules, pay attention to all warnings, and comply with these rules.
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It is forbidden to spray liquid around the product. Please do not place the liquid container above the product, such as vases, etc. The dry cloth and air pressure gun can be used for cleaning.
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Be careful not to form a hot air circulation. Please install as the recommended way.
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Do not install the product near the heat source, and try to keep the environment temperature below 35°C.
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@Ground protection, when connect to the power supply, corresponding ground protection measurements should be taken.
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Please protect the power cord from treading and squeezing, especially the plug, power socket and connected devices. Warning: A power plug/Equipment coupler, as a circuit cutting-off device, should be kept available at any time.
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Must be in accordance with the following sequence switch to use the product: Turn on: Pre-Amp~ Amplifier;
Turn off: Amplifier~ Pre-Amp. -
Before power is on, must ensure that the power supply voltage in accordance with the requirement of the product.
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If the input signal parallels with more than three power amplifiers, it is suggested to use a signal distributor to make sure no distortion of the input signal.
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Do not connect an output port of one channel to an input port of the other channel in the same amplifier. Do not connect an output port into an output port of another amplifier in series or parallel.
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When configuring an amplifier into a system, the output power of the amplifier should be 50%-100% higher than the nominal power which is the same impedance with the loudspeaker. And be careful to use the bridge mode.
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It is forbidden to connect an oscilloscope probe into an amplifier output interface in the state of the bridge when the amplifier is being maintained, to avoid the amplifier or oscilloscope got broken.
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Suggest 1) Please use qualified NL4 SPEAKON connectors.
- Please make the appropriate power distribution when more than one amplifier working at the same time, to achieve a qualified using environment.
Safety instructions
Foreword
Welcome
Thank you for purchasing our products. The K series professional power
amplifier, simple to operate stable high performance-cost rate. Special design
for KARAOK ROOM sound reinforcement, small performances, lectures and other
places. Please take the time to study this manual so that you can obtain the
best possible service from your amplifier.
Unpacking
Please unpack and inspect your amplifier for any damage that may have occurred
during transit. Confirm the preset voltage of the power amplifier matches your
local voltage rating ( Please refer to the print on the rear panel for
detailed information). We also recommend that you save all packing materials
so you will have them when need to
return the power amplifier.
Important safety precautions
Our products have already taken the safe requirement into consideration and
all the finished products have been tested under the requirement of the
government before sale. Due to the inner dangerous high voltage and
electricity, we strongly recommend you read all instructions, warnings and
cautions contained in this manual. It will increase the chance of getting
shocked 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 the power immediately and send the defective
units to local distributor for service.
Power & Wiring distribution
Referring to the power dissipation and power supply/AC of different products
for wiring
We suggest the users to match not less than the following wiring size
specifications, to obtain better comprehensive properties.
Front Panel
Cleaning guide of the dust filter
The first time cleaning of the strainer mesh should be right after installation. Recommend cleaning the strainer mesh quarterly. Please do not run the product without the dust filter, or it makes the service life of the product shorten. Such conditions will be considered as no warranty.
Rear Panel
Specifications
- Model KS
- Output power
- 80 stereo 900Wx2
- 40 stereo 1200Wx2
- 80 bridge N/A
Other Specifications
Frequency response THD+N
S/N rate
Input sensitivity
Input impedance(bal/unbal) Voltage gain (8 ohm ) Output circuitry
Cooling
Protection
- 20Hz-20KHz( +0/-0.8dB)
- :, Q.05%
- 28 dB
- 0.775V
- 20kO/10kO
- 39.B
- Class I
- Airflow from front to rear Soft start, short circuit, over load, clip limit, over heat, over-voltage, progressive volume
Connection
- Input
- Output
- Function
- Front panel
- Balance input XLR-F, Balance output XLR-M
- Two red and black Binding posts/NL4 SPEAKON
- Front panel indicator: Working indicator Signal/Clip/Protection/Power on/ volume control knob
Dimensions/Weight
- Product Dimension(mm)
- Packaging Dimension(mm)
- G.W.
- Power Supply
- (220V /240V ~)
- 483x298x89
- 560x435x170
- 12.7kg
- 1.0mm2
Product dimension(mm)
The manufacturer reserves the right to make changes in the specification without prior notice. The final specification is subject to the user’s manual.
Troubleshooting
After powered without any response
Measure the outlet with a multimeter to check if there is power available and
when no multimeter, you can have a test pencil. If the power supply is normal
and the amplifier still no response when powered then there is something wrong
with the amplifier, need a professional person to check it.
No signal output
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First, check if the signal input is right.
A check the connection of XLR if the 2 and 3 reverted or the ground is reliable. Different circuitry designs will have different connect way of the XLR, please follow the 2+, 3- to soldering. It can not be judged by comparing it with other amplifiers
(including other amplifiers in the same factory). -
The signal light doesn’t light up
If all the signal input is fine and the signal light doesn’t light up then may the amplifier has fail, you need to ask a professional person to check it. -
Signal input normal but no sound
The signal light will flash with the change of input Volume, but now sound out, then you can check the connect of speakon if it is connected good and the wires are connected right(some times the problem of the wires connect, check its±l and ±2 connect), after the check above if still no sound out, please change a speaker cable and check again. Because some times also caused by the bad quality of the Speakon connector problem of the amplifier.
Through experience, it may be caused by the bad connection of some plugs and the socket.
Output sound distortion
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After check, the signal and loudspeaker they are fine and still can hear distortion when small sound, then may the amplifier has failed, need a professional person to check it.
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Some frequency band has distortion
First, check if the loudspeaker is already overloaded, normally
judge it in 95~105dB for higher SPL we don’t comment here. Here we just think about the failure recovery of the amplifier. If in the middle have some rupture sound and smaller volume more obvious, then it should be crossover distortion of the amplifier and this kind of distortion is easy to confuse with the failure of the loudspeaker itself. If the amplifier has a problem then you should send it back to the manufacturer for repair. -
Distortion is High SPL
If the sound is normal when small volume and then you need to check the limit SPL of the loudspeaker. You can listen to it at a suitable volume and if clip light works, then you need reduce the output. Both loudspeakers and amplifiers have limitations, you should use them within their limit if in very high SPL they have distortion you should take care of them and reduce the output to the right position.
The protection light blinks
When the PROT light works, the amplifier into protection mode.
- Maybe the temperature is too high or output short or near short and they are not failures they can recover after you can use it normally. But over heat will take more time to recovery. Also when overheating happened you should check the fan and the temperature of the install environment, if you should solve the problem then can use an amplifier. If you think the speaker was short, you can with a multimeter to check if the resist is lower than 2 ohms or 1 ohm with DC(Please calibrate the multimeter to measure for accuracy because of the small resistance).
- If the PROT light always lights up then it should be the problem with the amplifier, you should send it back to a professional person for repair.
Hum in the system
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Hum exists even when there is no signal
Please keep the amplifier away from the earth wire of power supply cables, just connect the firewire and zero wire, no ground wire. If the hum is still existing, it can be judged that there are some problems with the amplifier. Please get in touch with professionals. -
Hum exists when the system is completely connected
This is caused by the different ground voltages in different devices in the system, mainly happens when the power supply is under three-phase distribution condition, each device is connected to a different phase. This is not caused by the amplifier.
Solution experiences, just for reference
- Combing the electricity, the power distribution box using the same one for all if possible.
- Make sure the grounding wire potential is zero and force the different grounding wires to the same level, if the grounding wire Itself is charged, indicates that the wire may be connected with the zero line. Please solve this problem.
- If unavailable above, then only to disconnect the ground wires of all devices, which helps to reduce the AC. But this is not meet the safe use of electricity, users must know what will happen if to do in this way. We do not recommend floating use.
The amplifier required maintenance in the condition below:
- If the amplifier smokes or smells burning.
- If the cabinet has severe indentation and deformation
- If the amplifier is dipped into the water
- If the internal components loosen
- If the AC breaker skips out when the current increases.
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 for
two years from the date of the sale; if the damage is caused under the normal
installation and operation, SAE Audio Co., Ltd. shall change t he defective
component and repair the 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
to have a manufacturing defect itself 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
- Website:
- www.saeaudio.com