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 on: Today at 03:26:19 pm 
Started by Neutrino - Last post by klaus
Set the PL20 to 250Ω, then to 500Ω and report back on the differences.

If the pinched midrange remains in all three settings, the problem may be capsule related. Replacing the capsule unit is a major repair cost.

 on: Today at 02:54:57 pm 
Started by Neutrino - Last post by Neutrino
Klaus, thank you for the quick reply. Here are a few more details:

- I recorded both mics through my Apollo preamps which are very clean and have a rather high input impedance (5.4 K Ohms). I use these preamps constantly and never had any trouble.
- No other hardware or plugins were used in the signal path
- The "jumper" for the output impedance selection of the PL20 is set to 150 Ohms (I checked).
- The RE20 is new and hasn't been modified, so the output impedance is the default 150 Ohms as well (I'd like to avoid opening it if possible
since it is new and the XLR jack is still sealed)
- When I measure the DC resistance between Pin 2 and Pin3, I obtain the following reading:
  RE20: 32.5 Ohms
  PL20: 25.3 Ohms

As far as the sound is the PL20 is concerned maybe my sample did not expose it extremely enough, but it can REALLY be annoying in the 3k region, while the RE20 is very smooth as we all know it from radio  ;)

 on: Today at 02:22:49 pm 
Started by Neutrino - Last post by klaus
"Broken" may be too strong of a word.
If your two samples are truly representative of the sound of the mics (always a big "if" in my experience), the PL
seems a bit more mid-ranged pinched, but with excellent high frequencies, yet a bit tight in the bass. Put another way, the RE seems smoother overall.

I would start by checking output impedances of both mics (see wiring diagram below) and, if the strapping of the RE is different, make it the same for the PL. 

I have found that, against all logic, in most situations the 500Ω strapping is beefiest and best for RE20, but that may not apply in your situation, as I don't know how your specific preamp's input impedance communicates with these mics.

 on: Today at 01:51:07 pm 
Started by Neutrino - Last post by Neutrino
Dear all,

my first post here after enjoying the wisdom gathered in this forum for some time now...

I got an Electrovoice PL20 microphone from eBay which to my knowledge is identical to the better known RE20 except for the color.
When I first tested it, I was disappointed by the nasal tone it delivers, so I did a side by side comparison with an almost new RE20. Both microphones recorded simultaneously, i.e. it is the same take, same distance and both high-pass filters were deactivated. The differences are unmistakable. Please listen yourself:

RE20 (intact):

PL20 (is it broken?):

Forgive my crappy singing  ::)

Is the PL20 supposed to sound like that or is it broken? Any suggestions are appreciated.


 on: August 16, 2017, 07:06:30 pm 
Started by saara - Last post by Michael O.
I knew this seemed familiar...

 on: August 16, 2017, 10:19:42 am 
Started by 12bitsorless - Last post by Fletcher
If anyone has the answer its David Kulka at Studio Electronics http://studioelectronics.biz

Best of luck with it!!


 on: August 16, 2017, 01:25:04 am 
Started by russjf - Last post by Vinny
Hi Jim, I've been in touch with Harrison and they say they can send me a new manual for US$600 + Shipping. They charge $125/hr for tech support so I understand that's where the cost comes from.

Thanks for your response. Hopefully someone out there will have a manual and be willing to share some information with me!
I found this link where a guy has an 85? model, with extra owners manuals. Seems willing to barter/trade/ I hope this is okay amd gets what you need.


 on: August 15, 2017, 11:39:53 pm 
Started by 12bitsorless - Last post by 12bitsorless
Hi - new poster here.

Whilst looking around for a Chorus Controller for my dear AMS 1580 it occurred to me that i may be able to do a lot of the control that the CC does by instead sending CV voltages to the DB25 on the back from a eurorack module...

My question is: does anyone have a list of the pin input/output of the DB25 on the back?


 on: August 15, 2017, 02:28:57 pm 
Started by Eddie Eagle - Last post by Eddie Eagle
I don't have any affiliation with the sale but know there are a few people on this forum that may be interested.


 on: August 14, 2017, 04:04:30 am 
Started by saara - Last post by Fletcher
Hi Saara -- welcome to the group. 

FWIW, I've tried both and found the Aviom to have a bit less latency which seems to make the musicians a bit more comfortable.  That said... running analog lines and using little Mackie [Behringer - etc.] analog mixers is really the best solution.  While the latency is pretty small [a few samples], at the end of the day I've found it can mean the difference between a musician sitting solidly in the "pocket" or sitting a bit outside [making the end performance less than it could have been].

I hope this is of some assistance.


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