Elemental Designs eQ.2

[Ricci]

+1

I'd be interested in seeing the results of measuring it with REW myself. Particularily the low freq extension/roll off and the EQ adjustment range.

[spanish68]

I haven't had any input/output issues at all with the EQ2, but remember this is connected to the current plate amp I'm using , a ED LT1300. I've heard of some people having issues with the EQ2 when connecting to "rack" amplifiers, I just move the gain knob all the way up and does fine.

As for measuring this unit response, I've done some measurements with a test tones cd and a radio shack digital meter and my TC 3K sub is now "flat" (within 3-4db's) from 20hz to 60hz. I've tried the subsonic filter at 12hz, 15hz with good results. For someone who needs a subsonic filter from 10-30hz, is looking for a simple unit to eq. (limited to two bands) one for 10hz-50hz and another one for 50hz-100hz region, with a good price to boot, it's a no brainer. The only thing is that these unit being analog with all the knobs adjusting, it takes time to set-up your sub. I hope to have the AE AV15X sub I ordered by no later than next week and will be using the EQ2 with it in my current sealed box (I will be building a 7cf PR box in the next few weeks with this sub), along with the CCS SDX and TC 3K sub drivers I have, I hope I'll be posting more information on this eq. along with the three drivers (mini shootout). I plan to keep the AV15X sub and sell the other two.

[Sonnie]

I have one on order that is scheduled to be here on Tuesday, so next Wednesday I should be able to do some REW graphs with it, then hook it up and see if it will work with my EP2500 without issues.

[mosconiac]

Sonnie: I have an eQ.2 NIB that I can't use because it offers no gain. My pioneer receiver has a feabile output voltage capability, so the eQ.2 wasn't a good choice for my EP2500. I bought it before I discovered that "flaw". I immediately ordered a Reckhorn B1.

I saw some tests HERE that suggest the eQ.2 can't even push the signal thru with unity gain (cuts by about 3dB).

EDIT: If you want to save some $$$, I'll make you a good deal on mine. 30% off = $70 shipped?!!? It's never seen power.

[Sonnie]

If I had not already ordered one, I would buy yours. Let me see if the one I got ordered is going to work for me. If it does, I may very well buy yours for my other channel. I need two. I will know on Tuesday or Wednesday.

[wadesi]

Hi Sonnie,
I'm very interested to see how this works out for you. I have a DIY sealed in-wall sub with dual 12" Shiva-X's powered by a EP2500 and the price point of this EQ is very attractive. I'm trying to find a BFD alternative as it's not the greatest looking piece of equipment to add to my very visible A/V rack.

[Sonnie]

I did receive it today and hope to get it hooked up and tested tomorrow sometime... if all goes well.

[wadesi]

This unit is a perfect match for those doing the "Hard-Knee House Curve". Per everything I've been reading on that only the "Major" peaks need to be addressed and the less corrections the better.

[Sonnie]

This appears to be a good unit here... provided live results match the unit results. My day was super busy with fifty-eleven things to do, so I have just now had time to simply do an REW loop thru test on my computer. Provided it can produce enough signal, which I believe it will, the live test should be very similar.

The subsonic filter dial ranges from 5Hz to 30Hz. With 5Hz being at 7 o'clock, I ran 7-2 o'clock (the max of 8 measurements allowed by REW). There was very little change from 7 to 8 and a minor change from 8 to 9. At 7, it does indeed appear to be very close to a LR 2nd order HPF. The next significant change was 10 o'clock where it appears to be between a 9-10Hz LR 1st order HPF. The rolloff per octave is not that steep.



It appears to be very flexible...





Below is probably what I will use... close to 9Hz 2nd order... not that the Fi's really need it, but we will be cautious anyway.



I may get a chance to test it live tomorrow evening, but no promises.

[mosconiac]

Thanks for sharing your results. Have you (or anyone elese) ever performed these tests on the Reckhorn B1? I'll search, but I don't know what combination of words will uncover this.