Galaxy CM-140 SPL Meter Pre-Order

**nerdful1** · **03-07-07, 06:23 AM**

Good luck with your cm-150s, I hope having my rs calibrated will give me peace of mind. I noted above that I modded it, but I did not do the high end mod.
I will do that before I bring it to the cal lab. Also with the LF mod the meter pegs easily so I may put some protection on the meter.
This cal lab specializes in SPL meter calibration. I see the top end b&k and other fancy units on their benches.
At the end of the cal cycle, I may consider attaching another boom mounted mic element of better quality, or by then maybe I'll have a nice cm-150 too. Jim

**Sonnie** · **03-07-07, 10:28 AM**

To help save on shipping cost and round out the order, I will have 6 more CM-140's to sell. There's no deadline on these, they will be available until they are all sold.

**IamDeMan** · **03-07-07, 11:46 AM**

Quote:

Sonnie wrote:

To help save on shipping cost and round out the order, I will have 6 more CM-140's to sell. There's no deadline on these, they will be available until they are all sold.

Sorry. I didn't read the whole thread, but would like one. Where do I send paypal?

**peterchi** · **03-07-07, 12:51 PM**

I would like to purchase one now. How much shipping to 2822 Yale Street, Vancouver, B.C. V5K 1C6?
I can pay by visa or paypal.

Thanks
Peter Chiew

**Chrisbee** · **03-07-07, 12:57 PM**

Sonnie

You have PM.

**Revenoor** · **03-07-07, 01:08 PM**

I have been perusing this for a while and thought I'd call around locally to see what a calibration on my RS would cost in Atlanta, GA. Thte company responded immediately from an on line inquiry to verify what I was asking for. The quote was $156.00 with a 3-5 day turn around. Thought I'd post this if anyone else was wondering.

**Sonnie** · **03-07-07, 02:06 PM**

Wow! :raped:

**Revenoor** · **03-07-07, 02:37 PM**

Quote:

Sonnie wrote:

Wow! :raped:

Exactly, ok now to the questions before you run out of toys. I recently bought the SMS-1 to go along with my new SVS PB-12/Plus 2 sub. My notebook is older than dirt and I don't trust it to boot most of the time so I'll drag down my PC with an internal Audigy 2 (don't remember the exact model but it has the drive bay option with mutliple input/outputs including SPDIF). My receiver that I use as a pre/pro, Denon AVR-4306 has manual eq capabilities and wanted a way to help the room as I add home made treatment and bass traps made from Owens 703 panels covered in the Guilford material. Would the AVR eq, RS spl, along with REW help me with the upper end and if the answer is yes then I assume I should try to get in line for your package deal if still available. Smack me if I am way off base here and hit the round file with the post....

**Sonnie** · **03-07-07, 02:59 PM**

I cannot answer as to exactly how accurate the RS meter is up high... I don't rightly recall. I plotted the Galaxy meters in this thread somewhere, so you could look at those to decide how accurate you think they would be. I rather it be your decision.

The AVR EQ can help some, how much I don't know.

**Sonnie** · **03-07-07, 05:10 PM**

All meters are gone!

**nerdful1** · **03-07-07, 07:29 PM**

I'll post the calibration curve to my RS when I get it back from the cal lab. I was thinking of taking it in next week. First I'll do the high freq mod.
If I get a chance I'll try to ref the HF to another mic before mod, after mod, and after the professional cal chart.
By the way, the modded bass response seems to go almost to DC

Jim

**Sonnie** · **03-07-07, 10:17 PM**

That would be super great if you could compare it to a mic that was flat to DC.

Of course even with your cal file, it's hard to say exactly what meters could use it and which ones could not.

**Geoff Gunnell** · **03-09-07, 09:54 AM**

I'm thinking about sending my RS meter in for a professional calibration.

Who's good? Davis? REAS?

What do I ask for -- NIST? I don't need a certificate per se, but a cal data file at least from 10Hz to 300Hz (on out to 30kHz or 40kHz if its no big deal).

Jim, would you post a little more info about the RS mods you've done? Any how-to guides online?

**Sonnie** · **03-09-07, 10:57 AM**

West Caldwell Calibration Lab will probably do it for you. Call and talk with Felix.

**Sonnie** · **03-09-07, 04:39 PM**

All the meters arrived today and I have begun testing. So far the first 8 match up to my meter I ordered from online a couple of months ago.

Back to testing.

**Ilkka** · **03-09-07, 06:06 PM**

Quote:

Sonnie wrote:

All the meters arrived today and I have begun testing. So far the first 8 match up to my meter I ordered from online a couple of months ago.

Back to testing.

That is excellent news!

**Sonnie** · **03-09-07, 07:08 PM**

They are all the same.... haven't found one yet that is different. I believe we are good to go.

Please see this thread for CM-140 calibration info.

**Sonnie** · **03-13-07, 12:19 PM**

For those interested...

I had intended on removing the unit from the packaging and shipping it in the bubble mailer with the battery installed. The On/Off button is very easy to trigger so I decided it would be best not to leave the battery in the units. Plus after a while I got tired of tearing the cellophane off the batteries so I just used my own for testing. I also decided to actually use the packaging to help protect the unit better. As you can see from the picture below... the one of the left is how it comes from the factory (except there is a manual and the battery is not an Energizer

)... the one of the right is how it will be when you remove it from the package. While leaving it in the package helps to protect the units, it will not fit in the mailer, therefore I had to cut the top of the package off for it to fit. This will not effect the warranty should you ever need warranty. You do not even need to keep the packaging, as I suspect most of you would toss it anyway. I also turned the units over because I felt like the cardboard gave a little better protection for the front face than the plastic.

**winggee** · **03-13-07, 04:20 PM**

Sweet, I got my shipping confirmation.

Thanks Sonnie. Looks like i'll be having some fun this weekend. Do you suggest using the ECM8000 .cal file for now?

**Sonnie** · **03-13-07, 04:57 PM**

Yes... with the C-Weighting box in REW unchecked. You'll be within a db or two of my ECM8000.

**Chrisbee** · **03-14-07, 03:49 PM**

Thanks, Sonnie.

Left the USA already!

That was quick!

**winggee** · **03-14-07, 04:41 PM**

Just got my meter. Struck me that the output was a 1/8" jack. I was dumb and assumed it had a RCA out. duh.

I noticed there are 3 scales. from low (32-80db), med (50-100), high (80-130). Should we be using the medium scale? what happens if we have a peak above 100db or a dip below 50db?

Thanks!

**nerdful1** · **03-14-07, 05:14 PM**

Geoff, I'll get back here soon with mod info..out the door now, and maybe even too busy this week to get it to the cal lab. Jim

Advertisement