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Genelec 7050B 85Hz cutoff problem

james-pond, modified 8 Years ago.

Genelec 7050B 85Hz cutoff problem

Youngling Posts: 8 Join Date: 2/8/11 Recent Posts
Dear Members

I have recently purchased a second hand 7050b subwoofer from sourcesalesuk. The 7050b has recently been serviced ( so they say )and is under warranty for the next 3 months.

I am using this with my stereo 8030a.

First a possible silly question. I have read all the manuals and setup the 85hz dipswitchs on the 8030a and the 7050b to complement each other. 8030a input sensitivity turned to full.
However if i turn off the subwoofer and play a sweeping Sine tone into my 8030a i can still here tone playing out the speakers way below 85hz.
I thought the idea of the dipswitch on the 8030a is to cut out the sound below 85Hz?

Also when I play the genelec boink test the first few boinks make the subwoofer make a fart noise and then it seems happier after those and for the rest. Am I playing too loud a sound through the sub or is it faulty and i should send back to sourceuk?

Any comments of setting me up with a nicer sound would be appreciated or some more tests I can do to make sure the sub and speakers are working correctly.

Kind Regards

James Pond
ilkka-rissanen, modified 8 Years ago.

Re: Genelec 7050B 85Hz cutoff problem

Yoda Posts: 2564 Join Date: 3/23/09 Recent Posts
Hello James,

85/120Hz dip switch on the subwoofer affects only to the LFE input. All other channels have a fixed 85 Hz crossover.

The bass roll-off switch at 85 Hz is not a brick wall filter but it has a gradual slope instead. That's why you are still able to hear frequencies below it. But if you test it with and without it, you should notice a clear difference.

Genelec boink signals are very demanding for any subwoofer. They start at 16 Hz which is already below the normal operating range of the 7050B subwoofer. It is normal that you can hear some additional noises during the first few pulses.
james-pond, modified 8 Years ago.

Re: Genelec 7050B 85Hz cutoff problem

Youngling Posts: 8 Join Date: 2/8/11 Recent Posts
Thanks Ilkka
I will play around some more

Cheers