CSL-Calibrated EMM-6 Microphone Sale

**Anechoic** · **11-02-09, 11:15 AM**

Order has been placed. I was expecting to sell maybe 12-15 mics. I just placed an order for 70 mics.

Who knew?

I kinda wish I could track down the Chinese OEM and buy straight from them. I figure I could sell these babies for $50-$70 a pop if I could get straight-from-the-factory pricing.

**Loffen** · **11-02-09, 03:22 PM**

I will go to Shenzhen early in december, will see what I can do for you.

**Nordo** · **11-02-09, 04:45 PM**

When testing my room or equipment in the past, I have used my RS SPL meter connected to the RCA plug on my Sound Blaster USB external sound card.

How do I use the EMM-6 with this sound card?

**laser188139** · **11-02-09, 04:58 PM**

The connection is the same as the Behringer ECM8000 mic described in the forum helpfiles. As with the Behringer, you need a mic preamp to give phantom power to the mic. The output from the mic preamp connects to the rest of the cabling identically to what you use with the RS SPL meter mic.

**drumslinger** · **11-02-09, 06:31 PM**

moo! missed the cut off! Next time

**ryanenen** · **11-02-09, 08:54 PM**

Quote:

laser188139 wrote:

The connection is the same as the Behringer ECM8000 mic described in the forum helpfiles. As with the Behringer, you need a mic preamp to give phantom power to the mic. The output from the mic preamp connects to the rest of the cabling identically to what you use with the RS SPL meter mic.

Is that the EMM-6 Mic must plug in a mic preamp to get it work? Any other methods to connect the EMM-6 mic to the rest of cabling?

**nerdful1** · **11-02-09, 09:37 PM**

Would be neat to get them to put a good cheap, (like the panasonic) capsule in a decent mic body, and a chip to go from capsule output to digital, eliminating preamp noise and other artifacts. The same programmable adc doing corrections from CSL

**laser188139** · **11-02-09, 10:35 PM**

Quote:

ryanenen wrote:

Is that the EMM-6 Mic must plug in a mic preamp to get it work? Any other methods to connect the EMM-6 mic to the rest of cabling?

If your question is whether a mic preamp is needed, I believe the answer is yes. Per the description on the Parts-Express site, the mic needs phantom power.

If your question is whether the mic must be plugged directly into the preamp, as illustrated on the forum page, the answer is no, the mic can be connected to the mic preamp with an XLR male-to-female cable.

Hope this helps,
Bill

**ryanenen** · **11-02-09, 11:13 PM**

Quote:

laser188139 wrote:

If your question is whether a mic preamp is needed, I believe the answer is yes. Per the description on the Parts-Express site, the mic needs phantom power.

If your question is whether the mic must be plugged directly into the preamp, as illustrated on the forum page, the answer is no, the mic can be connected to the mic preamp with an XLR male-to-female cable.

Hope this helps,
Bill

Thanks Bill for the information of the mic.

I search the forum that some members use external USB card with phantom power such as E-MU Tracker Pre. Would those USB audio interface work with REW and the EMM 6 mic?

What are the difference between:

1) E-MU Tracker Pre USB2.0
2) E-MU 0202 USB2.0
3) E-Mu 0404 USB2.0

I only want the cheaper one that can work with REW and the EMM6 mic.

Ryan

**BK_856er** · **11-02-09, 11:25 PM**

Quote:

ryanenen wrote:

Thanks Bill for the information of the mic.

I search the forum that some members use external USB card with phantom power such as E-MU Tracker Pre. Would those USB audio interface work with REW and the EMM 6 mic?

What are the difference between:

1) E-MU Tracker Pre USB2.0 - phantom power + USB or AC power
2) E-MU 0202 USB2.0 - no phantom power to mic!
3) E-Mu 0404 USB2.0 - phantom power + digital in/out + midi + great DAC

I only want the cheaper one that can work with REW and the EMM6 mic.

Ryan

I put some comments in red above. I'm no expert, but those are some of the differences. The 0202 will not power the mic. I went with the Tracker as an all-in-one solution...have not received it yet, so I can't say how well it works...

BK

**ryanenen** · **11-02-09, 11:44 PM**

Quote:

BK_856er wrote:

I put some comments in red above. I'm no expert, but those are some of the differences. The 0202 will not power the mic. I went with the Tracker as an all-in-one solution...have not received it yet, so I can't say how well it works...

BK

It looks like I should buy EMU Tracker Pre. Thanks for the information.

Ryan

**Nordo** · **11-03-09, 12:21 AM**

Curses.

I thought I was getting a relatively cheap upgrade from my SPL meter to a calibrated mic. Now I've got to go out and buy a pre-amp.

Is the E-MU the best option, or is there a better/cheaper option?

**BK_856er** · **11-03-09, 12:37 AM**

Quote:

Nordo wrote:

Curses.

I thought I was getting a relatively cheap upgrade from my SPL meter to a calibrated mic. Now I've got to go out and buy a pre-amp.

Is the E-MU the best option, or is there a better/cheaper option?

The E-MU is a relatively expensive solution. I justified the Tracker for its other capabilities independent of REW. The Behrenger mixer might be a good lower-cost solution - seems to get recommended frequently here. Presumably you already have a suitable soundcard. Hopefully someone more knowledgeable than me will chime in.

BK

**ryanenen** · **11-03-09, 01:44 AM**

Quote:

BK_856er wrote:

The E-MU is a relatively expensive solution. I justified the Tracker for its other capabilities independent of REW. The Behrenger mixer might be a good lower-cost solution - seems to get recommended frequently here. Presumably you already have a suitable soundcard. Hopefully someone more knowledgeable than me will chime in.

BK

I don't have a suitable soundcard too. I think it will be more convenience during calibration if I have mic pre-amp and external USB soundcard in one box.

BTW, is it possible to use the EMM 6 mic for calibrating Audyssey MultEQ auto setup of the Onkyo 906 AV receiver and/or Denon, sony av receivers?

**Nordo** · **11-03-09, 01:54 AM**

Quote:

BK_856er wrote:

The E-MU is a relatively expensive solution. I justified the Tracker for its other capabilities independent of REW. The Behrenger mixer might be a good lower-cost solution - seems to get recommended frequently here. Presumably you already have a suitable soundcard. Hopefully someone more knowledgeable than me will chime in.

BK

Thanks BK
I don't really need the mixer, just the phantom power. However, for the price, I guess I can't go wrong. My daughter drums in a band, so she can probably make use of the mixer features (so long as I get it back.

)
Only other problem is shipping costs to Australia.

**laser188139** · **11-03-09, 09:21 AM**

Quote:

ryanenen wrote:

...
BTW, is it possible to use the EMM 6 mic for calibrating Audyssey MultEQ auto setup of the Onkyo 906 AV receiver and/or Denon, sony av receivers?

No. The Audyssey folks insist that you use the mic, or the model microphone, that comes with the receiver. The sensitivity and response of that model mic are programmed into the receiver.

**Anechoic** · **11-03-09, 11:33 AM**

Quote:

Loffen wrote:

I will go to Shenzhen early in december, will see what I can do for you.

Score!

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**Anechoic** · **11-03-09, 11:38 AM**

Quote:

laser188139 wrote:

No. The Audyssey folks insist that you use the mic, or the model microphone, that comes with the receiver. The sensitivity and response of that model mic are programmed into the receiver.

This. Also I've measured a couple of Audyssey mics (I think I posted the curves in one of the other threads) and thy have wildly differing response that look nothing like an ECM8000 or EMM-6. If you plugged in an ECM8000/EMM-6 you would get a junk response.
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**ryanenen** · **11-03-09, 09:53 PM**

Quote:

laser188139 wrote:

No. The Audyssey folks insist that you use the mic, or the model microphone, that comes with the receiver. The sensitivity and response of that model mic are programmed into the receiver.

The calibration effect of Audyssey MUltEx is not satisfactory. So I wonder whether it is the problem of the stock mic.

**ryanenen** · **11-03-09, 10:02 PM**

Quote:

Anechoic wrote:

This. Also I've measured a couple of Audyssey mics (I think I posted the curves in one of the other threads) and thy have wildly differing response that look nothing like an ECM8000 or EMM-6. If you plugged in an ECM8000/EMM-6 you would get a junk response.
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The stock mic come with Onkyo is indeed an average unit. A friend here use a LinearX M31 mic to calibrate the Denon AVC-A1HD (5308CI in the US) with good result than using the Denon mic.

He sent me a diagram (attached) showing how to instal a 9V battery connector on the XLR female plug and supplied the LinearX mic with 9V phantom power using a 9V battery.

Can I install/modify a battery to supply phantom power for the EMM 6 mic?

**Dennis H** · **11-03-09, 10:44 PM**

Quote:

Anechoic wrote:

I kinda wish I could track down the Chinese OEM and buy straight from them. I figure I could sell these babies for $50-$70 a pop if I could get straight-from-the-factory pricing.

I'm pretty sure it's http://www.superlux.com.tw/ . Their branded version is the ECM999.

Quote:

ryanenen wrote:

It looks like I should buy EMU Tracker Pre.

The really nice thing about the Tracker is it's unity gain with the pot all the way to the left. Most mic preamps are close to zero gain with the pot all the way down. What that means is you only have to calibrate the Tracker once with the pot all the way down and you have a usable gain setting that's reproducible every time you measure.

Quote:

ryanenen wrote:

The calibration effect of Audyssey MUltEx is not satisfactory. So I wonder whether it is the problem of the stock mic.

IMHO, Audyssey's problems are far bigger than the mic. They try to do too much and have forgotten the basic premise of 'do no harm.' Even experienced users can't get the same results doing it twice in a row. And you can't save your old results so it's a cr*p shoot whether doing it again will be better or worse.

PS: Herb, you once mentioned doing some distortion measurements of the EMM-6. As you know from our email conversation, I'm in no hurry for my mic so I volunteer mine as a distortion test dummy.

**Anechoic** · **11-03-09, 11:08 PM**

Quote:

Dennis H wrote:

I'm pretty sure it's http://www.superlux.com.tw/ . Their branded version is the ECM999.

I dug around a bit and determined the Superlux isn't the OEM, they're just another distributor. There was a discussion group I stumbled upon at one point that basically indicated that "original" Asian OEM's tend to stay conceal their identities and work through agents - and those agents basically don't want anything to do with you unless want to handle hundreds/thousands of units. I'm now in the lower range of that club, I just need someplace to start.

Quote:

PS: Herb, you once mentioned doing some distortion measurements of the EMM-6. As you know from our email conversation, I'm in no hurry for my mic so I volunteer mine as a distortion test dummy.

No prob.

**Dennis H** · **11-04-09, 12:04 AM**

Quote:

Anechoic wrote:

I dug around a bit and determined the Superlux isn't the OEM, they're just another distributor. There was a discussion group I stumbled upon at one point that basically indicated that "original" Asian OEM's tend to stay conceal their identities and work through agents - and those agents basically don't want anything to do with you unless want to handle hundreds/thousands of units. I'm now in the lower range of that club, I just need someplace to start.

Hmmm, very interesting. They have factories on mainland China so it seems weird that they'd be buying mics from someone else (shrug). Maybe Superlux is just a wholesale/retail front for whoever is really building all their (many) mics? Hard to figure Taiwan vs. China business/politics. On the surface they hate each other but they seem to do a lot of business.

**melberi** · **11-07-09, 10:23 AM**

For those concerned with sensitivity figures, I measured the output impedance of my EMM-6 at 300 ohms rather than the 200 ohms specified by manufacturer.

**Anechoic** · **11-07-09, 01:11 PM**

Quote:

melberi wrote:

For those concerned with sensitivity figures, I measured the output impedance of my EMM-6 at 300 ohms rather than the 200 ohms specified by manufacturer.

At what frequency? As you might imagine I'm hip deep in EMM-6s right now, but if I get a chance tonite, I'll run an output impedance sweep.
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