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QUESTIONS & Answers

16 questions

20 Apr 2019

Please explain how to disable the noise gate on the BRB4 Bluetooth audio module. As it is, it sends a very loud click/pop via the output every time it's engaged.

Hi. All the WONDOM products have been strictly tested before shipment. Please be noted the power-up sequence: firstly powering up the BRB4, then powering up the audio amplifier. If there is still problem, please contact us with store@sure-electronics.com. Thank you for your support.

16 Apr 2019

Can you connect a single chassis to the 2x15w Bluetooth board and let the Board convert the sound to mono? Is the power output then 30 or 15 watts?

Hi. The 2 x 15W Amplifier Board with Bluetooth - JAB1 (AA-JA32151) can be configured as mono mode to deliver 30W. We provide this service for customers but please kindly be noted that MOQ will be required. If you want to know more details, please contact us with store@sure-electronics.com.

16 Apr 2019

What kind of power supply do you use to power your 100 by a 100 W audio amplifier please get back to me by this weekend

Hi. For the AA-AB32971 (2 x 100Watt 4 Ohm Class D Audio Amplifier Board - T-AMP), the recommended power supply is Mean Well SE-200-27 AC/DC Single Output Switching Power Supply 27V 7.8A 200W (PS-SP11518).

We provide the power supply range and the recommended power supply in the user manual of audio amplifiers and customers can get the document in the downloads of product page. Wish this could help you.

If you have any problem, please feel free to contact us with store@sure-electronics.com.

16 Apr 2019

Registration is displayed but not connected.

Hi. Please send an e-mail to store@sure-electronics.com to describe the problem you encountered detailly. We will try our best to solve it for you as soon as we receive it.

09 Apr 2019

Looking for documentation on the APM2 (ADAU170a) board!

Hi. The documentation of APM2 has been uploaded. Thank you for your feedback.

09 Apr 2019

For your ADAU1701 board, to which pins are the potentionmeters connected? And is there a filter on the DAC outputs? I could not find any documentation. Can you post/publish the schematics,please?

HI. The documentation of ADAU1701 DSP board (APM2) has been uploaded. Wish it could help you. Thank you for your Feedback. Any problem, please feel free to contact us.

09 Apr 2019

I had a fairy with my Android phone. At first, "SURE" was displayed with a letter. But it does not connect. Then the registered "SURE" character disappeared. Pairing does not work.

Hi. We will try our best to help you solve your problem. To provide better support for you, could you please send an e-mail to us (store@sure-electronics.com) to describe the details of your problem and the product you purchased? We will reply to you as soon as we receive it.

09 Apr 2019

Pairing does not work. I had a fairy with my Android phone. At first, "SURE" was displayed with a letter. But it does not connect. What is the solution?

Hi. We will try our best to help you solve your problem. To provide better support for you, could you please send an e-mail to us (store@sure-electronics.com) to describe the details of your problem and the product you purchased? We will reply to you as soon as we receive it.

09 Apr 2019

I had a fairy with my Android phone. At first, "SURE" was displayed with a letter.Pairing does not work. What is the solution?

Hi. We will try our best to help you solve your problem. To provide better support for you, could you please send an e-mail to us (store@sure-electronics.com) to describe the details of your problem and the product you purchased? We will reply to you as soon as we receive it.

16 Apr 2019

How long will my 2.1 (2x50 + 1x100w) boombox playtime be with 5S 26650.

Hi. We did discharging test under 19V, 2A of 5S 26650 using the 26650 5500mAh batteries and the time of duration is 1.8h. Just for your reference. How long your 2.1 boombox playtime will be change with the music style and the load.

28 Mar 2019

My 2x50 watt class amp board with bluetooth goes mute after I increase its volume on my phone(its power supply is the 3s 18650 board with mppt charger you guys sell)

Hi. Please make sure the 3s 18650 battery board is fully charged before playing music. The supply voltage for charging battery board is 15V-24V. If there is still problems, feel free to contact us with store@sure-electronics.com.

21 Mar 2019

My 3s 18650 charger does not work as there is no current on the output

Hi. Please make sure that the batttery polarity is correct. To protect the battery and board, we set the Overdischarge Detection Voltage of each cell as 2.8V. If the voltage of any battery is under 2.8V, it will enter into protection mode, in which condition the battery board should be charged. So please check the voltage of each battery. If there is still problems, feel free to contact us with store@sure-electronics.com.

26 Mar 2019

Is the 5S 26650 lithium battery board intended for use with standard lithium-ion batteries or LiFePO4? Also does the USB charging board come with it?

Hi. The 5S 26650 lithium battery board is designed for standard 26650 lithium-ion batteries. And the conversion board with USB charging port is the accessory, which is not sent with BCPB4. The conversion board with USB charging ports will be lauched soon. Thank you for your support.

18 Mar 2019

Temperature controlled fan is listed as optional feature for this amp: SKUAA-AB33184. How is it actually activated? Thanks.

Hi. To provide better heat dissipation, now we provide this product (SKU: AA-AB33184) all with temperature controlled fan mounted on. Thank you for your feedback and we have updated the description. Feel free to contact us if you have any problem.

01 Mar 2019

I want to use multiple amps in a system with a 12v power supply. What happens when I give each amp it's own 12 to 24v 100w boost converter?

Please make sure that the amplifiers you use could work at 24V. In addition, the power of your power supply, boost converter and amplifiers should be paid attention to. Ground noise may happen, so we suggest that you use audio isolation solution. Wish it could help you.

28 Feb 2019

Will there still be an option to customize the Bluetooth name on the JAB series amplifiers, as well as purchase the cables package, L-bracket and interface extension board?

Sorry for the late reply. The online shop is still unde construction and your feedback really matters. This function will be improved soon. Thank you for your support.

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