Question about Sony STR-DE445 Receiver

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KN 7000 Keyboard. While playing a

KN 7000 Keyboard.
While playing a loud boom came from the left speaker. No sound but all other controls seem to work okay.

Is there a Technics repairman in the U.S.?

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Speaker couldn't handle the frequency, dB, or volume level.

Posted on Mar 27, 2009

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Speaker maybe busted tyr to change it.. or test it first before changing

Posted on Feb 29, 2008

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I have a 22 year old Luxman receiver. The left speakers periodically turn off, but seem to recover if I really turn up the receiver volume. I did just reconnect the speaker wires in an attempt to fix the...


To be honest it sounds as though your volume control needs a clean, try to find some switch cleaner (servisol or similar) remove the casing and spray into the volume control from behind the face plate as apposed to from the front. Rotate the volume all the way back and forth several times to clean the tracks, I have used deodorant in the past to achieve the same result but as this will leave a residue, probably not recommended as a permanent fix. Obviously do these actions with the amp switched off, otherwise you will at the very least annoy your neighbours with the loud volume.

Hope this is helpful.

May 06, 2011 | Audio & Video Receivers

1 Answer

When my KEF home theatre subwoofer is maxing out on bass, it often makes a loud popping noise. Should I be making some adjustments to reverb, volume, or something else?


Hi,
Yes you should make adjustments.KEF makes very good products, however if you don't handle this you will have to replace or service it.
1 If the woofer is very close to you, relocate it further away. The reason being is that the lower the frequency the larger the wave form. The lowest waveforms will become louder.
2 Adjust the high frequency cut off to be at 80Hz. This should eliminate boom. Higher Sub frequency tend to muddy the sound.
3 The sub should have a subtle effect in music. So the relationship between it and the speakers it augments the sound of should be seamless.
4 If you are playing Rap or Reggie music and you like to play it loud. Add another sub into the system and locate it NEXT TO the KEF Sub. In this fashion the two subs will reinforce each other's energy. They will "couple" thus multiplying their energy considerably.
Hope this helps,
Best Regards,
Mark

Jan 04, 2011 | Audio & Video Receivers

1 Answer

Hello. I get no sound out of my AVR 7000 Receiver. No cables behind has been touched in the past. I'm trying TEST TONE, and everything seems normal in the display, but still no sound. I use Preout a NAD...


You don't say if all speakers are silent or just the ones to the unspecified NAD power amp. Do ANY speakers work regardless of which device powers them? Could the NAD be the problem?

Dec 25, 2010 | Harman Kardon AVR 7000

1 Answer

No music coming from my left front speaker. I ran the level calibration and I can hear the pink noise coming loud and clear to that speaker. I have both front speakers set to the same level, but I only...


Hi,
Looks like your volume control switch is not working on the left side, you can check it by tapping the knob on the volume control and sound will come out on left side.
The only way to get the sound again is to replace the volume control or pull out the volume control and open it up to clean the contacts in it.

Hope that helps you out!
Thanks for using Fixya!

Dec 12, 2010 | Onkyo TX-DS787 Receiver

1 Answer

The speakers on the left side of my technics stereo have stopped working and are making a loud humming sound while the speakers on the right side still play music normally model number is sa-120 and the...


Check the input cables from the source you are playing at both ends. Sounds like an input problem, not a speaker problem. Twist the RCA connectors as you push them in to make sure the connection is good.

Aug 29, 2010 | Audio & Video Receivers

1 Answer

Right Front and rear speaker do not work proberly.


I ran into the same issue with an AVR 7000 after it had been shipped to me. I took the cover of and found that the left and right amplifiers have a separate power plug into them. when I plugged to "bad" side back in everything worked great.

Dec 30, 2008 | Harman Kardon AVR 7000

1 Answer

Crackling Speakers


It sounds to me like an impedance mis-matching problem!!!
But it does seem you have done everything correctly so I cant offer any other suggestions - sorry!!!!

Aug 01, 2008 | Pioneer VSX-D407 Receiver

1 Answer

AVR 7000 audio/video receiver


Harman kardon amplifire are known for that.specially AVR 7000
but sometimes this comes from poor wiring and using a wire that will not conduct better sound. Remember your wiring is very important.you may think your wiring is currect, better to double check. even if your connection is ok and the wire you are using are not better to produce quality sound you will not get sound from every speaker.

good luck

Feb 28, 2008 | Harman Kardon AVR 7000

2 Answers

Avr 7000


WAT BRAND SPEAKER AND RECEIVER?POSSIBLE OHM ISSUE?WAT IS THE IMPEDENCE ON THE AMP AND CENTER SPEAKER,.HAVE YOU TRIED RUNNING A 6?8 CHANNEL CONFIG?FOR EX.USING YOUR SOUND CARD THROUGH THE PREAMP AS A DSP. WHE PLAYED IN SHOP HE USESD CD? U USING SAME CONNECTION FROM THE SAME INPUY? OR IF LISTEN ING TO RADIO. SOMETIMES THE SINGNSAL IS NOT IN A DIGITAL FORMAT SO THE PPR LOGII C CANT PRODUCE IT.IT WOULD BE PLAYED ANALOGICLY.MEAN NO CENTER.

Dec 26, 2007 | Harman Kardon AVR 7000

2 Answers

Protection mode keeps kicking in


This happens less often in "normal surround" mode

Apr 01, 2007 | Sony STR-DE485 Receiver

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