Become a Site Supporter and Never see Ads again!

Author Topic: Marantz PMD 620 Oade Mods  (Read 2957 times)

0 Members and 1 Guest are viewing this topic.

Offline ts

  • (69)
  • Needs to get out more...
  • *****
  • Posts: 3373
  • Gender: Male
Marantz PMD 620 Oade Mods
« on: September 12, 2019, 05:42:31 PM »
Doug still mods these, but which mod if any would work best with a V2 or are these mods mostly for those who plug mics directly into the unit. Seems like most of the mods are in the mic in section. I will only be using the line in.
« Last Edit: September 13, 2019, 02:04:24 PM by ts »
Beyerdynamic CK930>Sound Devices MixPre 6

Offline jb63

  • Site Supporter
  • (31)
  • Taperssection Member
  • *
  • Posts: 864
  • Gender: Male
  • if not now when?
Re: Marantz PMD 620 Oade Mods
« Reply #1 on: October 05, 2019, 09:44:21 PM »
The Mods work for Line/Mic. Make sure you confirm that before you spend the money, but I'm pretty sure that's right.
You want to start with a concert mod. best thing ever.
If you are running a specific mic that wants the warm mod, that might be an option, but the concert mod will take whatever you throw at it and make you happy.
this is definitely not normal

Offline MakersMarc

  • (15)
  • Needs to get out more...
  • *****
  • Posts: 6097
  • Gender: Male
  • 😈
Re: Marantz PMD 620 Oade Mods
« Reply #2 on: October 06, 2019, 12:33:27 PM »
I have three warm modded 620s and love them. Unlike the 661 mods, he does also upgrade the line input.
« Last Edit: October 11, 2019, 05:34:02 PM by MakersMarc »
😈 Mk4v/41v>nbob actives>Baby nbox>Oade warm mod Marantz 620.

Open: 4v/41v>nbobs>Nicky mod Naiant PFA>Oade warm mod 661.

Home: the Stereo Hospital budget refurb rig: Lappie>DragonFly Cobalt/Red with Jitterbug>Nikko NR520 amp>B&W V202 speakers.

Offline jb63

  • Site Supporter
  • (31)
  • Taperssection Member
  • *
  • Posts: 864
  • Gender: Male
  • if not now when?
Re: Marantz PMD 620 Oade Mods
« Reply #3 on: October 06, 2019, 06:09:15 PM »
I have three warm misses 620s and love them. Unlike the 661 mods, he does also upgrade the line input.

The 661 is line and mic input, too, isn’t it?
I’m sure it is!
this is definitely not normal

Offline yug du nord

  • ...til things never seen seem familiar…
  • (56)
  • Needs to get out more...
  • *****
  • Posts: 5371
  • made with natural flavor
Re: Marantz PMD 620 Oade Mods
« Reply #4 on: October 06, 2019, 06:40:23 PM »
I have three warm misses 620s and love them. Unlike the 661 mods, he does also upgrade the line input.

The 661 is line and mic input, too, isn’t it?
I’m sure it is!

On the PMD661:
Mic/Line-In on the XLR's are MOD.
1/8" Line-In 2 is not.
I think.
« Last Edit: October 06, 2019, 06:43:35 PM by yug du nord »
.....got a blank space where my mind should be.....

Offline jb63

  • Site Supporter
  • (31)
  • Taperssection Member
  • *
  • Posts: 864
  • Gender: Male
  • if not now when?
Re: Marantz PMD 620 Oade Mods
« Reply #5 on: October 07, 2019, 06:52:34 PM »
Exactly!
The little 1/8 inch line in is the only thing not modified. I don't think I've ever used that!
this is definitely not normal

Offline yug du nord

  • ...til things never seen seem familiar…
  • (56)
  • Needs to get out more...
  • *****
  • Posts: 5371
  • made with natural flavor
Re: Marantz PMD 620 Oade Mods
« Reply #6 on: October 07, 2019, 06:58:11 PM »
Exactly!
The little 1/8 inch line in is the only thing not modified. I don't think I've ever used that!

I've never used the 1/8" either..  but if I remember correctly, that is D. Oade's preferred input.  Stock.
If it's not his preferred input, he thinks highly of it.
Kinda crazy.
.....got a blank space where my mind should be.....

Offline MakersMarc

  • (15)
  • Needs to get out more...
  • *****
  • Posts: 6097
  • Gender: Male
  • 😈
Re: Marantz PMD 620 Oade Mods
« Reply #7 on: October 11, 2019, 05:35:32 PM »
Exactly!
The little 1/8 inch line in is the only thing not modified. I don't think I've ever used that!

I've never used the 1/8" either..  but if I remember correctly, that is D. Oade's preferred input.  Stock.
If it's not his preferred input, he thinks highly of it.
Kinda crazy.

Yeah he likes it, if I ever run line in again I’ll try it.
😈 Mk4v/41v>nbob actives>Baby nbox>Oade warm mod Marantz 620.

Open: 4v/41v>nbobs>Nicky mod Naiant PFA>Oade warm mod 661.

Home: the Stereo Hospital budget refurb rig: Lappie>DragonFly Cobalt/Red with Jitterbug>Nikko NR520 amp>B&W V202 speakers.

Offline ts

  • (69)
  • Needs to get out more...
  • *****
  • Posts: 3373
  • Gender: Male
Re: Marantz PMD 620 Oade Mods
« Reply #8 on: July 09, 2021, 05:16:11 PM »
Just looking back at this thread that kinda got sidetracked. So some of these mods address the line input? Which ones and are they worth $200? I’ll be using an external pre and looking for the best AD conversion possible out of this little bugger.
Beyerdynamic CK930>Sound Devices MixPre 6

Offline beatkilla

  • (63)
  • Taperssection All-Star
  • ****
  • Posts: 1957
  • Gender: Male
Re: Marantz PMD 620 Oade Mods
« Reply #9 on: July 09, 2021, 07:12:27 PM »
Whats wrong with the 620 stock version?

Offline prepschoolalumniblues

  • (5)
  • Taperssection Regular
  • **
  • Posts: 105
  • Scents and subtle sounds
    • Phish.net Profile
Re: Marantz PMD 620 Oade Mods
« Reply #10 on: July 09, 2021, 08:22:04 PM »
I love the stock model but I have an extra that I recently sent in for the concert mod — it’s currently in transit. Perhaps placebo but I thought it would be worth a try!

Here is the info on the mods: https://www.oade.com/digital_recorders/hard_disc_recorders/PMD-620MODS.html

And here’s the description on the mod most suited for our purposes, to save you a click:

The PMD 620MKII Concert rebuilds the PMD 620MKII mic preamp with a low noise, very low distortion and high slew rate op amp that dramatically enhances detail and clarity while lowering noise and audible distortions. This upgrade also improves the line input circuit. The built in mics are removed to maximize microphone input quality, all other features remain intact. Concert MOD parts are selected by ear to optimize the PMD 620MKII for recording music.

(According to this, it appears that the line-in is indeed modified… I always use mic-in so I don’t know too much about that!)

Offline MakersMarc

  • (15)
  • Needs to get out more...
  • *****
  • Posts: 6097
  • Gender: Male
  • 😈
Re: Marantz PMD 620 Oade Mods
« Reply #11 on: July 10, 2021, 12:41:46 PM »
Doug verified for me when we were emailing back and forth, that he does indeed mod the line input on the 620, not on the 661. He designed the 661 mod specifically for folks who don't run an outboard pre and run xlr in. Someone asked about PIP, looks like that is intact, but I would get in touch with Doug if that matters.

I have never listened to the stock model, but over the years I've run an m148, two or three warm mod sbm1s, two warm mod 661s, to my ears his warm mods are exactly what I want-warm but detailed. I loved the mod when I ran 4022s, and even more with 4v/41v.
« Last Edit: July 10, 2021, 01:01:06 PM by MakersMarc »
😈 Mk4v/41v>nbob actives>Baby nbox>Oade warm mod Marantz 620.

Open: 4v/41v>nbobs>Nicky mod Naiant PFA>Oade warm mod 661.

Home: the Stereo Hospital budget refurb rig: Lappie>DragonFly Cobalt/Red with Jitterbug>Nikko NR520 amp>B&W V202 speakers.

 

RSS | Mobile
Page created in 0.049 seconds with 36 queries.
© 2002-2021 Taperssection.com
Powered by SMF