Hi all
Subsonic filter doesn't seem to have any effect, whether on or off.
Can anyone help?
Manual might shed some light.
Subsonic filter doesn't seem to have any effect, whether on or off.
Can anyone help?
Manual might shed some light.
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Re: PMA980R Denon amp, subsonic filter function advice.
what filter is this? 20-30-40 hz?under 40hz you don't listen nothing.only in heavy bass track and volume up you can see the bass woofer lose some movement when you careffuly looking.subsonic filter is allways good thing speakers and amps work more acurate and relaxing.other way if the amp + sub is designed for very low frequencies or you heard music in low comfortable level you left the filter in the off position. -
Re: PMA980R Denon amp, subsonic filter function advice.
Thanks Spiros
Not sure on frequency.
Will need to check user manual.Comment
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Re: PMA980R Denon amp, subsonic filter function advice.
Discovered a very useful low frequency test on You Tube, from around 4HZ TO 20HZ.
Subsonic filter definitely makes a difference, taking the edge off the bass response, but to be honest with most music you wouldn't even notice it.
https://www.youtube.com/watch?v=n5visUIa2MYComment
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Re: PMA980R Denon amp, subsonic filter function advice.
its for when you are using a turntableComment
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Re: PMA980R Denon amp, subsonic filter function advice.
Hi Peter, can you give more detail please.Comment
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Re: PMA980R Denon amp, subsonic filter function advice.
its to stop any rumble .or so i was led to believeComment
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Re: PMA980R Denon amp, subsonic filter function advice.
Vinyl can warp and this can cause woofer pumping where the warps cause undesirable sub 20Hz frequencies.
https://support.arendalsound.com/hc/...ubsonic-FilterComment
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Re: PMA980R Denon amp, subsonic filter function advice.
Ah that makes sense, cheers guys, therefore function seems to be working then.Comment
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Hi, this is more of a project help request than a troubleshooting question. I hope I can post it here.
I have a W-King D8 Bluetooth boom box which I'd like to modify with some external speaker output jacks and some buttons to switch the internal speakers on and off.
From factory the specs of the boom box are:
-Power Input: DC 5V
-Speaker Output Power: 2 x 25W ( confirmed by Youtube channel Hartdegen review as 12.5W RMS per channel)
-Drivers:
-2 x Woofer, 70mm, 10Ω, 70mm,15W
-2 X Tweeter, 8Ω, 30mm,10W x 2
-Frequency... -
This is a new item at Electronic GoldMine that has arrived within the last few weeks
Here is the link for them I know for sure that it works because ( I tried it on mine soldering station ) I bought two of them and I just bought two more of them so I have some extra replacement ones in my parts bin
Stahl Tools DDDS Replacement Iron for DSDS Stahl Solder Station
https://theelectronicgoldmine.com/products/g28392
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I'm using FM station to do this fix, I works perfect if volume below around 8 or if bass is set to zero, the sound can go to 20 without problem, but if I set bass to maximum and try to go over 10 the sound comes distorted ... I saw a video on YouTube the person saying about the main capacitors on the power portion, but I disconnect the main transformer and inject direct to the capacitors PINs my bench power supply -23v 0v +23v, but still distorted so I think the problem is not the capacitor neither the transformer... -
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However, these two coils are not showing any voltage.... -
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