20 Most Recent Sunfire Cinema Grand Signature 400 seven 7-Channel Amplifier Questions & Answers

usually printed on speaker

You need to now the RMS for a true capacity of your speakers and your amp.

I would say you are OK, with a margin, but if you turn the amp to max and blow the speakers, please dont call me.

Yes you can,,,,,BUT the output labelling on the AMP will tell you where you can connect the 4ohms or the 8ohms....please read these labels and connect the 4ohm speakers to the 4ohm terminals, and the 8ohms to the 8ohms terminals...

If you intend to connect the 4ohm and the 8ohm speakers in parallel then the output impedance terminals you use should be the 4ohm ones.

If there is no labelling showing any 4ohm output terminals then its best if you dont use the 4ohm speakers at all....just connect the 8ohm to the 8ohm terminals...you dont mention any crossover networks inside the speaker boxes or if you have tweeter speakers... so just stick to the basics above at present....

Cheers From YUBEUT

Contact the Sunfire tech folks . They've responded quickly for me.
Probably not in the power amp. It's whatever youre plugging the MIC into.

It sounds like you are describing an earth loop problem. I won't go into detail in this post, but try an isolation test first. disconnect everything from the reciever except the sub and try connecting say a BATTERY powered mp3 player or cd player to minimise connections to the electrical mains earth. you could also isolate things by taking your sub to a friend's house and trying it on their system.
If it is an earth loop use a process of elimination to find out which two pieces of equipment causes the earth loop. then apply filtering.
you can buy earth loop isolation transformers for about AU$26 and I've used one on my sub myself. Theyhave RCA (phono)plugs on each end and they connect inline with the signal cable to the sub amp.

as for the thumping sound it might be the speaker protection circuitry cutting off the amp to protect the subwoofer speaker from damaged. This might be triggered if the earth loop sound is causing the sub amp to overload and clip.

Failing this there might be a dried out overheated electro capacitor in the amp circuit causing the hum. Hav a chat to your local electronics person, who should be able to spot it!
Hope this puts you on the right track
Happy Hunting!

passive radiator is likely shot.

Hi...Check for bad fuses and maybe contact

http://www.sunfire.com/support.asp

If the display is working, you have audio. Check your amplifier. 1300Watt adaptor ... This unit draws a very low power and that is not needed.

1. Power Off: Turn off the device.
2. Jumper Configuration: Locate the jumper labeled "S16" on the device. Initially, it should be connected to pins 2 and 3.
3. Power On (Alarm+All LEDs Flashing): Turn the device back on. You'll see the alarm LED and all other LEDs flashing.
4. Power Off Again: Turn off the device once more.
5. Jumper Adjustment: Change the jumper configuration from pins 2 and 3 to pins 1 and 2.
6. Finished: Your Porpo YH-2000 is now set to the desired angular unit mode.

If you encounter any issues, you can press the reset switch on the back of the device to reinitialize it.

this model SA rather than SC seems to be a Middle East model. The SC version doesn't have DAB. https://www.google.com/search?q=panasonic+sa-pm250+instruction+manual ..

All questions need clear 'make model (what it is)' first 3 words. https://www.google.com/search?q=fmdott085+V398 ..

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How To File A Warranty Claim For Your SHOKZ Headphones

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Are you using the charging cables that came with it? That is a type C. Are you securely attaching the charging cable? A loose connection would keep the battery from charging. If you had a low battery, you would see a red light. That you have no light at all suggests there is no charge left in the battery. I'm not sure the reset will work with no charge which is why you ought to check the cables first. But turn it off and then hold down the Multifunction button for 10 seconds to reset it. Then turn it back on and see what happens. If you can, test the charging cable on aother device. If you have another type C charging cable, try it, just to eliminate a bad cable. If these suggestions don't work, you may try the manufacturer's customer support.