I was just reading up on it, and it seems like an interesting piece of equipment. I'm just having a hard time figuring out exactly what it does. Is it a compressor? An optimizer? A glorified EQ?

I think it's an EQ of sorts.

"Attack Equalizer"... sounds like a compressor?
EHX's website says it sounds great on bass :)

http://www.gearwire.com/media/electro-harmonix-knockout.mov

it sounds great on guitar, but i have no idea what it dose :confused:

It's a specialized EQ of sorts. It uses a low and high filter to shape your tone.

I haven't seen one in any of my local shops yet, so I haven't jumped on one to try. I'm honestly not too interested in this one - maybe if I had a passive bass, I might be.

http://www.youtube.com/watch?v=wjgRfQOOR70

Sounds good!

http://www.youtube.com/watch?v=wjgRfQOOR70

Sounds good!

Nice, really fills up the bottom on bass. Sounds kind of thin on guitar though.

Agreed 100%

I desperately try to avoid most pedals for "tone shaping." The Submarine, Dark Boost, etc.

I figure, if your sound isn't what you want... get a new bass or a new amp.

However, this is really a candidate to break that train of thought. That really sounds great.

Anyone have on to review? I am stuck between this and the Nano BassBalls and what I should get myself for my birthday to add to my sound!

Darned you EHX!!!!!


:::Sigh:::


GAS:confused::rollno:

I for one don't like the sound of the pedal on that demo video, it makes everything sound thinner and weaker. Nice graphics though!

The bass was played on a guitar amp in that demo.

I for one don't like the sound of the pedal on that demo video, it makes everything sound thinner and weaker. Nice graphics though!

They dialed back the Dry signal below 12:00 - don't forget that.

The result is a bit similar to mid-scooping.

The bass was played on a guitar amp in that demo.

That, too.

Try THIS video instead - one of Michael Leonhart's weird EHX demo videos that I'd linked to before. :D

http://www.youtube.com/watch?v=COgcXvl9WJw

There's a demo on bass at the end of it.

The beginning of that video says the cutoff point for the HPF is 65kHz. Doesn't that seem ridiculously high? 45,000 Hz above the absolute upper range of human hearing! That must be wrong, right?

The beginning of that video says the cutoff point for the HPF is 65kHz. Doesn't that seem ridiculously high? 45,000 Hz above the absolute upper range of human hearing! That must be wrong, right?

It depends on the shape of a filter's slope. As you can see on this image, high pass filter can cut some freuqencies that are before the cutoff point:

http://upload.wikimedia.org/wikipedia/commons/e/e9/Butterworth_response.png

Also the point you're controling with a knob on an eq pedal isn't necessarily the actual cutoff frequency point of a given filter.

They dialed back the Dry signal below 12:00 - don't forget that.

The result is a bit similar to mid-scooping.



That, too.

Try THIS video instead - one of Michael Leonhart's weird EHX demo videos that I'd linked to before. :D

http://www.youtube.com/watch?v=COgcXvl9WJw

There's a demo on bass at the end of it.

thats a sweet video!

It depends on the shape of a filter's slope. As you can see on this image, high pass filter can cut some freuqencies that are before the cutoff point:

http://upload.wikimedia.org/wikipedia/commons/e/e9/Butterworth_response.png

Also the point you're controling with a knob on an eq pedal isn't necessarily the actual cutoff frequency point of a given filter.

I'm aware of how a HPF works, and I wouldn't be surprised to see a cutoff freq of 30 or 40kHz, but 65kHz still seems high to me.

Edit: Just checked out the manual on the EHX website. The correct cutoff freq. is 6.5kHz, not 65khz. That makes more sense.

http://www.youtube.com/watch?v=wjgRfQOOR70

Sounds good!
Do the pained facial expressions come with it?

So... to me this looks like a adjustable-Q bandpass with blend. Is that roughly right?

It probably has some kind of dynamic EQ/filter that acts differently depending on the amplitude of the note being played. Only saying this because they sell it as an 'attack equaliser', and the Aphex Xciter works on a similar principle.

...Sounds kind of thin on guitar though.
that was the whole point, wasn't it? the guy effectively turned a fat-sounding les paul into a (comparatively) thin-sounding strat. i'm sure you could get some uber-beefy hugeness out of a guitar with that thing, if you were so inclined.

Any reviews?

Whats the MSRP?

I just bought one of these for my guitarist friend for his birthday. Its sounds pretty good on guitar.

He going to lend to me for the sake of reviewing it here. I'll be out of town for the next few days, so look for a review late next week.

I'm going to see about posting sound clips, but other than the input on my sound card I don't know what else I'd need (sound editing program?).

-Eric

Whats the MSRP?

Around $66?

It depends on the shape of a filter's slope. As you can see on this image, high pass filter can cut some freuqencies that are before the cutoff point:

http://upload.wikimedia.org/wikipedia/commons/e/e9/Butterworth_response.png


That's a Low-pass filter response, not a High-pass.

I wrote a short review here (http://basschat.co.uk/index.php?showtopic=14480&view=findpost&p=152485) if it is of any interest.

I received it today!

It is pretty much as Silent fly says on his link.

I tried it after a guyatone fuzz tz-2 and a dunlop GCB-95 (guitar) wah-wah ans I was able to get low end back. The high filter effect isn't THAT audible until you put distortion/overdrive/fuzz before it. Then, you can dial some pretty nasty sound or make it shake the whole block with the LPF.

It is probably the less exciting pedal I bought. You have to try it with other pedals to have fun. It does pretty much what EHX says no more, no less.

Inshort: Simple, 5/10 on the "Fun Scale", try it with low-end-killer pedals!