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Sure Electronics specially designs complete audio amplifier and power supply solutions - CVA Series for constant voltage applications, such as public address announcement system, background music system, fire alarm system, school broadcast system and so on.
When comes to constant voltage systems, reliability is a paramount considering factor. It is quite important that the constant voltage amplifiers and the power supply have the ability to continuously operate with high reliability and stability.
Keeping this requirement deeply in mind, Sure Electronics has implemented comprehensive tests for constant voltage amplifiers before shipment to verify its ruggedness and ensure the products customers get can work stably.
Sure Electronics implements the following test items for CVA series:
1. Maximum output power test
The DUT (Device Under Test) must be able to deliver rated power at any time, no matter working under a constant voltage mode or a constant resistance mode.
2. Extreme input voltage test
We will input extreme input voltage to the constant voltage amplifier and run frequency sweep with infinite loop of 60s 0.1Hz – 80kHz for survival test to avoid any unexpected damage.
3. Supply range test
Sure Electronics offers matched AC/DC power supply and DC/DC power supply solutions for CVA series. For AC powered CVA series, the tolerance of supply range is ±10% and for DC powered CVA series, that would be ±20%.
4. High temperature test
The CVA series would be test under 65℃ (for industrial applications) or 50℃ (for commercial applications).
5. Full Protection
Sure Electronics constant voltage amplifiers (CVA Series) are equipped with full protection to maximumly reduce the possibility of damage caused by improper operation. We will conduct the following tests：
① AC Mains Shorted with Input/Output Test
② DC Shorted with Input/Output Test
③ Input & Output Test
④ Short Circuit Test
Please contact us with firstname.lastname@example.org or email@example.com for more detailed information about the constant voltage amplifier and how they are tested.
Sure Electronics Co., Ltd. will participate in prolight+sound SHANGHAI held in Shanghai New International Expo Center from Oct 10, 2019 to Oct 13, 2019.
In this exhibition, Sure Electronics mainly displays the highly reliable constant voltage audio system solution, specially designed for constant voltage system such as Background Music system, Public Address Announcement system, Alarm system and Communication system. Sure Electronics provides high performance constant voltage amplifier – CVA series, matched power supply solution – CVPS series and optional interface board integrated with audio isolated transformer. Taking system installation and integration into account, Sure Electronics offers customers with brackets or enclosure solution for easy operation.
Sure Electronics provides a traditional constant voltage amplifier solution with step-up transformer and compact transformerless constant voltage amplifier solutions. All amplifier in Sure Electronics CVA series support both constant voltage mode and constant resistance mode. Please kindly be noticed that the two modes cannot be used at the same time and customers can manually switch between the two modes through the switch on the CVA series. To improve the operation convenience and system safety, Sure Electronics provides an optional interface board integrated with an audio isolated transformer and a control unit, which employs automatic identification function, realizing automatic switch between constant voltage mode and constant resistance mode.
Sure Electronics offers matched AC/DC and DC/DC power supply solutions, covering 60W-400W economic AC/DC power supply without PFC, 300W-600W AC/DC power supply with PFC and 60W-600W isolated DC/DC power supply. In addition, we provides power supply solutions for DC24V of marine system and DC100V of railway system.
To help customers maximumly save time and improve efficiency, Sure Electronics designs three installation solutions, including L-style bracket or U-style bracket, U-style bracket with covers and metal-cutting aluminum enclosure.
Please contact us with firstname.lastname@example.org or email@example.com for more detailed information.
Our Booth No. is N2G47 and we sincerely invite you for a visit.
Audio is an essential component either in self-service equipment for operation guidance, or in game machine applications to create atmosphere, thus they all need an audio system.
Sure Electronics has developed a full set of highly cost-effective and highly extendable audio solutions for self-service equipment and game machine applications, including audio isolation solutions, DSP, audio amplifier, power supply solutions and speakers. Please see the following block diagram.
Audio Amplifier Board Series – KAB Series
KAB series is an amplifier board series specially designed for self-service equipment and game machine applications.
Stereo low power amplifier boards with optimization for speech intelligibility are for self-service equipment, such as Ticket Machine, Vending Machine, Service Robot and so on. For game machine applications, Sure Electronics provides 2CH/4CH/8CH 15W to 100W per channel audio amplifier boards. In addition, some multi-channel amplifier boards can be configured (PBTL) to meet the requirements of the commonly used audio 2.0/2.1/4.0/5.1/7.1 system.
All KAB amplifiers are highly integrated in compact size and are designed for easy installation.
Audio Isolation Solutions
We provide optional high performance audio isolation solutions, such as USB codec input and isolation transformer input to eliminate ground noise, both of which are module form, greatly improving the flexibility of whole system. The 2CH/8CH USB sound card is compatible with the Linux or Windows systems of high-end computers used in games machines.
Optional DSP Module Solution
An Optional DSP module based on high performance ADAU1701 is also available for customers’ choice to control the system through bass enhancement, gain adjustment, cut-off frequency setting and other functions.
Power Supply Solutions – KPS Series
Sure Electronics combines the audio amplifier board with the power supply closely to provide power supply and battery solution for KAB series. KPS series has been released as the power solution aimed at self-service equipment and game machine applications, covering 65W to 500W AC/DC power supply and 30W to 100W DC/DC power supply. In addition, Sure Electronics provides 12V auxiliary output when designing the power supply to power the peripheral equipment of game machines, greatly reducing the cost and space. All the power supply modules are equipped with complete protection circuits and are suitable for a harsh working environment.
We provide highly cost-effective full range speakers in 2’’-6’’ and subwoofer in 8’’/10’’ optimized for sealed cabinets, featuring flat frequency response and high reliability.
Test System and Certifications
With ten years of research on Class-D audio amplifier, Sure Electronics has established a complete test system for products from R&D stage to shipment including the implement of HALT & HASS for every product, which comes with test reports and gives a strong endorsement for the high reliability of our products.
Sure Electronics helps simplify the process for customers to achieve certifications for final products and save valuable cost, by providing products compliant with FCC, CE and safety regulations. KAB series, as a component of a game machine, has passed the pre-test of FCC and CE in EMI and EMS parts in the laboratory, but does not have paper certifications, because FCC and CE is directed at final products within an enclosure.
If you want to know more detailed information, please contact us at firstname.lastname@example.org.
Watch the videos for more detailed information.
WONDOM High Power Dual Power Supply Series is a highly efficient and highly reliable series based on high performance IRS2092 chip, power ranging from 500W to 3000W. The entire series is equipped with complete protection circuit and supports flexible load characteristic and wide load range. Supporting wide frequency range is another highlight of this series.
Flexible Load Characteristic
Electronical appliances can be divided into resistive load, inductive load and capacitive load. It’s easy for amplifiers to drive resistive load such as the speakers. Since the impedance of the inductive load and capacitive load would change with frequency and there will be reactive power when driving both inductive and capacitive load, it raises high requirements of the amplifiers.
WONDOM high power dual power supply series can handle with inductive load and capacitive load. However, extra attention should be paid for any operation with purely capacitive loads. For any non-audio applications, customers are suggested to send an inquiry e-mail to Sure Electronics for system compatibility confirmation or face the consequences.
Wide Load Range
With its low output impedance, the entire series supports wide load range, showing stable performance with 1Ω without impact by loudspeakers loading characteristics. Therefore, the high power dual power supply series is capable of standing and dealing with high current.
Wide Frequency Range
Audio frequency range is 20Hz-20kHz. Thanks to our exquisite PCB layout design and the special technology employed in our amplifier, the high power dual power supply series can handle with wide bandwidth from 10Hz to 22kHz with uncompromising frequency response, not only meeting requirements of audio system but also satisfying special demands of some applications such as Physical Therapy Machines, Underwater Acoustics and so on.
This series is able to support extremely wide frequency range as 5Hz-80kHz through some configurations. If you have any need, please contact us.
High Output Voltage
The maximum output voltage of WONDOM IRS2092 series can reach 200V÷2.828≈70.72V>70V in half bridge structure. And it can deliver 200V÷1.414≈141.44V in full bridge structure.
Another series of amplifiers that can deliver 280V RMS output voltage will be released soon, so stay tuned.
WONDOM standard products can only be used in audio applications and there is a big difference between the standard products and the specialized version on protection and performance. If you have any requirement on non-audio applications, please contact us to get the products specially optimized for specific applications.
In this video, we will use WONDOM 1 X 2500WATT CLASS D AUDIO AMPLIFIER BOARD - IRS2092 (AA-AB31491) to drive the air conditioner. The video of frequency range testing, driving electronical stove and driving the coil to heat up water and the video of actually showing 2500W RMS power have been uploaded to our YouTube channel. You can click the following link to feel the powerful strength of WONDOM high power dual power supply series based on IRS2092.
Sure Electronics has been committed to providing customers with Safe, Utility, Reliable and Efficient audio products since its birth.
To streamline the company organization and offer our customers with better service, Sure Electronic has migrated the production to an ISO 9001:2008 verified factory located in Perai, the Free Trade Zone of Malaysia in April 2019, which means some wholesales customers’ orders will be delivered from Malaysia directly from now on. (Please confirm with us before shipment.)
Thank you for your consistent support and trust in Sure Electronics. We will keep on trying our best to provide high quality products to satisfy your requirements.
Reliability is one of the paramount factors when both audiophiles and industrial customers select audio products. Only when the components are reliability, can the whole system run stably for long time.
Sure Electronics has been committed to provide customers with Safe, Unity, Reliable and Efficient audio products since its birth. With ten years’ experience accumulated in highly demanding applications, Sure Electronics has built a complete Test System with full set of test reports, covering all phases from development to shipment, making a strong endorsement for the reliability of our products.
HASS (Highly accelerated stress screen）is implemented in the production phase to ensure that all improvement measures found in HALT can be implemented and make sure that no new defects are introduced due to changes in production processes and components.
All products will be tested at -40℃- 65℃ in half output power for up to 1000 hours to provide validated MTBF data. Meanwhile, we will use the signal generator to sweep in the frequency range of 20Hz-20kHz and observe the output waveform. Only when the products pass all tests, can they be put in storage.
All of WONDOM products must pass the HASS test and can be used at -20℃-55℃ and -40℃- 65℃. The operation temperature for our standard products is -20℃-55℃. If customers if the customer needs products for the temperature range of -40℃- 65℃,please contact us and we will also provide the corresponding test report.
In the following video, we will use AA-AB32361 (MPAB2-160) 2 x 160Watt class D audio amplifier board as an example to show you the general flow of HASS.
Sure Electronics Co., Ltd. will participate in 2019 Asia Amusement & Attractions Expo (AAA) from May 9, 2019 to May 11, 2019.
In this exhibition, Sure Electronics mainly displays the highly integrated KAB series specially designed for arcade machine and amusement equipment, which extends from our standard product, featuring high performance-cost ratio, high reliability and full protection.
Taking requirements of amusement equipment application, we provide amplifiers from 30W to 400W, including 300W subwoofer, meeting customers’ demands of 2.0/2.1/4.1/5.1/7.1 audio system. Abundant ports for high-speed input are provided in KAB series such as HDMI, Coaxial, Optical, USB, RCA and Bluetooth, opening up possibilities for swift and convenient connection with System-on Chip (SoC) or other peripheral equipment. We also provide audio isolation solution for customers.
KPS series, the power supply matched with KAB amplifier, provides 12V/24V output voltage, which meets the power of amusement equipment. Since there are many electric devices in amusement equipment and their power are different, this power supply series are equipped with auxiliary power port, which can be used to power other devices such as the SoC, greatly saving the space and the cost of whole system. In addition, amplifier board with DSP integrated is also available in Sure Electronics.
Our Booth No. is Hall 1.1, 1A121 and we sincerely invite you for a visit.
Acoustic wave is the form of energy known to have the ability to transmit over long distance underwater for now. According to its features, it is widely used in Underwater Acoustic applications, such as Positioning, Navigation, Communication and Measurement.
For UWA customers, Sure Electronics can provide full set of solutions, including High Efficiency Transducer, Wide Frequency Range Hydrophone, Low Noise Pre-amplifier, High Reliability Power Supply and Broadband Amplifier.
The special capacitive load characteristics of the transducer raise higher requirements for the power amplifier’s ability of dynamic response and current driving. Based on advanced Broadband Power Amplifier technology, Sure Electronics provides 200W-2kWrms complete solution for wideband amplifier, featuring high output voltage up to 1200V, comprehensive input and output protection, high power, high efficiency and reliability.
Please contact us for any inquiries.
Game Machine and Self-service Equipment are more and more popular nowadays and most of them can produce sound to create an immersive environment or give users the flow guide or other help. High integration has been an inevitable trend in such Industrial applications.
WONDOM KAB series (Audio amplifier modules designed for Kiosk Applications) is a highly cost-effective audio amplifier series with full protection extended from our standard product with optimization in system integration of Game Machine, ATM, Service Robot, vending machine application, ensuring controllable cost and short design cycle for fast transition from prototype to market. KAB series is capable of meeting requirements of easy integration, high reliability and low power consumption in today’s game machine and self-service equipment amplifier marketplace. Abundant ports for high-speed input are provided in KAB series such as HDMI, Coaxial, Optical, USB, RCA and Bluetooth, opening up possibilities for swift and convenient connection with System-on Chip (SoC) or other peripheral equipments. Microphone amplifier and headphone amplifier are available when recording and audio reproduction through headphone are required. Auxiliary power port in KAB series is reserved for powering up SoC, saving much space and cost of whole system.
We provide 2W/8W/15W/30W/100W stereo/multichannel audio amplifier for customers’ choice. Customers can use the KAB separately or configure them into 2.1/4.0/5.1/7.1 audio system to their demands.
Please contact us for any inquiries.
Long Range Acoustic Devices are used for remote transmission of messages or warning signals in higher volume to achieve the purpose of alerting, deterrence, dispersing or defensing, widely applied in Disaster Warning Sirens and Rescue, Frontier and Civil Defense, Law Enforcement and Management, Dispersing and Protection and so on.
Equipped with advanced power supply Auto-switch and speaker voice coil Thermal Management circuit, Sure Electronics provides customers with full set solution of long range acoustic devices with SPL up to 140dB, featuring complete protection circuit, light weight, compact size and high efficiency.
The power of WAD1140 is out of proportion to its size. It was proven to be able to produce 140dB/m. The instantaneous SPL of WAD1140 at 100m distance can reach 100dB and it can maintain 80dB at 1km distance, fully meeting the requirements of warning or deterrence over a long distance.