Become a Site Supporter and Never see Ads again!

Author Topic: Easiest way to power an R-44?  (Read 6575 times)

0 Members and 1 Guest are viewing this topic.

Offline acidjack

  • Site Supporter
  • Trade Count: (37)
  • Needs to get out more...
  • *
  • Posts: 5839
  • Gender: Male
Easiest way to power an R-44?
« on: December 02, 2009, 10:52:13 AM »
I may have an R-44 coming my way in the future, and I'm trying to figure out how to power it.  I'm pretty much useless when it comes to "making" things like cables, etc. so I am trying to figure out what I should get that's light and works.  I may from time to time carry the unit rather than have it on the floor, so lightness would be nice.

I see references to Tekkeon power units in other threads, but I don't know if, for instance, this thing is overkill: http://www.amazon.com/Tekkeon-MP3450-myPower-Rechargeable-Battery/dp/B000S9JWJI/ref=sr_1_3?ie=UTF8&s=electronics&qid=1259768925&sr=8-3

I read through a few other posts, but some of the discussion went a bit over my head, sad to say...
Mics: Schoeps MK4V, MK41V, MK5, MK22> CMC6, KCY 250/5, KC5, NBob; MBHO MBP603/KA200N, AT 3031, DPA 4061 w/ d:vice, Naiant X-X, AT 853c, shotgun, Nak300
Pres/Power: Aerco MP2, tinybox v2  [KCY], CA-UBB
Decks: Sound Devices MixPre 6, Zoom F8, M10, D50

My recordings on nyctaper.com: http://www.nyctaper.com/?tag=acidjack | LMA: http://www.archive.org/bookmarks/acidjack | twitter: http://www.twitter.com/acidjacknyc | Soundcloud: https://soundcloud.com/acidjacknyc

Offline bhadella

  • Trade Count: (9)
  • Taperssection All-Star
  • ****
  • Posts: 1849
  • Gender: Male
  • Toiling away the day...
    • http://db.etree.org/bhadella1
Re: Easiest way to power an R-44?
« Reply #1 on: December 02, 2009, 11:14:30 AM »
Easiest way is to use AA batteries in the battery compartment on the bottom. 

The most cost effective was is to by a "DVD" battery online.  The go by tons of names but the "Initial 5400" is the most common.  You can get them dirt cheap on ebay.

Example:  http://cgi.ebay.com/Initial-Universal-Portable-DVD-battery-Brand-New-Inpack_W0QQitemZ250451484801QQcategoryZ79845QQcmdZViewItemQQ_trksidZp4340.m263QQ_trkparmsZalgo%3DSIC%26its%3DI%252BC%26itu%3DUCI%252BIA%252BUA%252BFICS%252BUFI%252BDDSIC%26otn%3D10%26ps%3D63


This battery will come with a generic power cable and charger.  You will need to adapt the power cable to connect to the R44.  If the battery doesn't come with the correct size adapter, you will need to pick one up at Radio Shack.   The R44 takes Adaptaplug size M. 
 
"Your ideas are intriguing to me and I wish to subscribe to your newsletter. "

Offline acidjack

  • Site Supporter
  • Trade Count: (37)
  • Needs to get out more...
  • *
  • Posts: 5839
  • Gender: Male
Re: Easiest way to power an R-44?
« Reply #2 on: December 02, 2009, 04:12:16 PM »
Thanks - that is perfect (and a lot cheaper)!

Easiest way is to use AA batteries in the battery compartment on the bottom. 

The most cost effective was is to by a "DVD" battery online.  The go by tons of names but the "Initial 5400" is the most common.  You can get them dirt cheap on ebay.

Example:  http://cgi.ebay.com/Initial-Universal-Portable-DVD-battery-Brand-New-Inpack_W0QQitemZ250451484801QQcategoryZ79845QQcmdZViewItemQQ_trksidZp4340.m263QQ_trkparmsZalgo%3DSIC%26its%3DI%252BC%26itu%3DUCI%252BIA%252BUA%252BFICS%252BUFI%252BDDSIC%26otn%3D10%26ps%3D63


This battery will come with a generic power cable and charger.  You will need to adapt the power cable to connect to the R44.  If the battery doesn't come with the correct size adapter, you will need to pick one up at Radio Shack.   The R44 takes Adaptaplug size M.
Mics: Schoeps MK4V, MK41V, MK5, MK22> CMC6, KCY 250/5, KC5, NBob; MBHO MBP603/KA200N, AT 3031, DPA 4061 w/ d:vice, Naiant X-X, AT 853c, shotgun, Nak300
Pres/Power: Aerco MP2, tinybox v2  [KCY], CA-UBB
Decks: Sound Devices MixPre 6, Zoom F8, M10, D50

My recordings on nyctaper.com: http://www.nyctaper.com/?tag=acidjack | LMA: http://www.archive.org/bookmarks/acidjack | twitter: http://www.twitter.com/acidjacknyc | Soundcloud: https://soundcloud.com/acidjacknyc

Offline SmokinJoe

  • Trade Count: (63)
  • Needs to get out more...
  • *****
  • Posts: 4200
  • Gender: Male
  • "75 and sunny"... life is so much simpler.
    • uploads to archive.org
Re: Easiest way to power an R-44?
« Reply #3 on: December 02, 2009, 09:19:14 PM »
Seconded on the DVD player batter.  Another name is "RB-270".  Somewhere here there is a thread with a ton of different names.  Some DVD batteries are 7.5V, most are 9V, and you want 9V.

Generally, they come with a cable, and adapter tips.  The problem is that Edirol wires things up backwards with respect to the rest of the world (Edirol has positive on the outside), so you'll need to cut the cable in the middle, and solder it back together with red-black mixed.  R44, R4, and UA-5 all the same in this regard.

Or, if you don't solder, go to Radio Shack and get the "Adapt-a-plug" kit with a cable and a "B" tip and an "M" tip, for the overpriced amount of about $20. Plug one tip on (+) and the other tip on (-).  It doesn't matter which is plus and which is minus, just so long as they aren't both the same.
Mics: Schoeps MK4 & CMC5's / Gefell M200's & M210's / ADK-TL / DPA4061's
Pres: V3 / ST9100
Decks: Oade Concert Mod R4Pro / R09 / R05
Big Rig: split snake > Focusrite & Presonus Pres > ADAT > Alesis HD-24 > Protools 11
Daughter's rig:  AT4050ST > Busman Hybrid R4
Photo: Nikon D700's, 2.8 Zooms, and Zeiss primes
Playback: Raspberry Pi > Modi2 Uber > Magni2 > HD650

Offline RossW

  • Trade Count: (0)
  • Taperssection Newbie
  • *
  • Posts: 3
Re: Easiest way to power an R-44?
« Reply #4 on: December 03, 2009, 12:22:28 PM »
Edirol may be "backwards," but they're hardly unique in this.  My R-44, Zoom H-4, and an old Sony Discman all use the same configuration for their 9V external power.  I'm sure there are others, but the bottom line is to confirm voltage and polarity before plugging in anything.

Online ero3030

  • Trade Count: (57)
  • Taperssection All-Star
  • ****
  • Posts: 1430
  • Gender: Male
Re: Easiest way to power an R-44?
« Reply #5 on: December 10, 2009, 05:04:19 PM »
9v dvd.  outside sleve " + " inside " - " .  ed
needin some fishhead music!

" known for f**king up a good weekend on a Thursday nite "

Offline frogger

  • Trade Count: (5)
  • Taperssection Regular
  • **
  • Posts: 109
  • Gender: Male
Re: Easiest way to power an R-44?
« Reply #6 on: December 14, 2009, 10:38:32 AM »
What kind of recording time do you get using all 4 channels with this 5400 mAh battery?  How about if you are using it to provide phantom power to 2-4 mics?
TIA,
Chuck

Offline DSatz

  • Site Supporter
  • Trade Count: (31)
  • Needs to get out more...
  • *
  • Posts: 2594
  • Gender: Male
Re: Easiest way to power an R-44?
« Reply #7 on: December 14, 2009, 07:04:41 PM »
frogger, I recently bought two DVD batteries and gave them their initial charge, and am now testing with the R-44 to answer exactly the same question. I'll post my results here.

One thing I've found using alkaline AA cells with this unit is that phantom powering makes a big difference in the battery life. The microphones that I mainly use draw about 4.5 mA each (Schoeps CMC 6-- series), which is somewhat higher than most. For the test I'm using a pair of Neumann KM 150s (ca. 2 mA each) plus a pair of the Schoeps for a total of about 13 mA.

--best regards

P.S.: (edited to add) I just checked after half an hour of recording, and the "Full" LED no longer lights up on the battery.
« Last Edit: December 14, 2009, 08:05:02 PM by DSatz »
music > microphones > a recorder of some sort

Offline frogger

  • Trade Count: (5)
  • Taperssection Regular
  • **
  • Posts: 109
  • Gender: Male
Re: Easiest way to power an R-44?
« Reply #8 on: December 14, 2009, 08:35:02 PM »
frogger, I recently bought two DVD batteries and gave them their initial charge, and am now testing with the R-44 to answer exactly the same question. I'll post my results here.

One thing I've found using alkaline AA cells with this unit is that phantom powering makes a big difference in the battery life. The microphones that I mainly use draw about 4.5 mA each (Schoeps CMC 6-- series), which is somewhat higher than most. For the test I'm using a pair of Neumann KM 150s (ca. 2 mA each) plus a pair of the Schoeps for a total of about 13 mA.

--best regards

P.S.: (edited to add) I just checked after half an hour of recording, and the "Full" LED no longer lights up on the battery.

Thanks for your reply.  I hope to have an R44 for festival season next year.  I'll primarily be using it with either some AKG 414's, using the phantom power, and/or with some CMC4 Schoeps which, as you know, use the 12V T-power, supplied by me through a battery box or a little box once I get around to purchasing that.  Looking forward to hearing your results.

TIA,
Chuck

Offline DSatz

  • Site Supporter
  • Trade Count: (31)
  • Needs to get out more...
  • *
  • Posts: 2594
  • Gender: Male
Re: Easiest way to power an R-44?
« Reply #9 on: December 14, 2009, 11:41:33 PM »
It's been recording room sound for 4 hours, 40 minutes now and there's still one green and one red LED lit on the battery, which according to the little pamphlet means that it's still between 30 and 55% charged.

I should have mentioned this before: A pair of headphones has been plugged in the whole time, though they're not being driven very hard since the recorder and microphones have been in a fairly quiet place. But as you probably know, the current drawn by a microphone doesn't vary as a function of the signal levels that it's putting out.

I'm going to end the experiment now since it's bedtime. Some weekend I might go for the maximum just to see what it is, but 4+ hours with that much current going out to four microphones, plus the ability to hot-swap the batteries to double that time if necessary (since the recorder simply switches to the internal AA cells during the interruption) makes this a very, very useful arrangement.

The only (slight) down side is that it's fairly easy for the power plug to come loose from the recorder, since the power socket is set about 1/4" deep into the "well" area, and the cable has a right-angle connector which rides against the rim surrounding the well.

--best regards

P.S.: I didn't set the cutoff level for external powering to 9.0 Volts; I simply left it set to "Adapter."
« Last Edit: December 15, 2009, 12:13:58 AM by DSatz »
music > microphones > a recorder of some sort

Offline frogger

  • Trade Count: (5)
  • Taperssection Regular
  • **
  • Posts: 109
  • Gender: Male
Re: Easiest way to power an R-44?
« Reply #10 on: December 15, 2009, 10:52:10 AM »
Mr. Satz,

Thanks for your experiment.  I hope to get my R44 within the next 2 months and then I'll be buying a few of these batteries to try for myself.

Chuck

Offline DSatz

  • Site Supporter
  • Trade Count: (31)
  • Needs to get out more...
  • *
  • Posts: 2594
  • Gender: Male
Re: Easiest way to power an R-44?
« Reply #11 on: December 26, 2009, 09:46:50 PM »
I'm re-running the experiment now. This time I noticed that the first green LED went out the moment the battery was connected to the recorder with four microphones being powered (2 x Schoeps CMC 64 + 2 x Neumann KM 150F). No headphones are plugged in this time.

I'll post more when I know more.

--best regards

Edited later to add: After 7-1/4 hours one green and one red LED still light up on the battery, but it's time for bed with two performances of "La Bohème" to record tomorrow.
« Last Edit: December 28, 2009, 10:12:47 PM by DSatz »
music > microphones > a recorder of some sort

Offline BayTaynt3d

  • Trade Count: (4)
  • Taperssection All-Star
  • ****
  • Posts: 1816
  • Gender: Male
  • Live from San Francisco
    • BayTaper.com
Re: Easiest way to power an R-44?
« Reply #12 on: December 29, 2009, 01:40:10 AM »
It's been recording room sound for 4 hours, 40 minutes now and there's still one green and one red LED lit on the battery, which according to the little pamphlet means that it's still between 30 and 55% charged.

I should have mentioned this before: A pair of headphones has been plugged in the whole time, though they're not being driven very hard since the recorder and microphones have been in a fairly quiet place. But as you probably know, the current drawn by a microphone doesn't vary as a function of the signal levels that it's putting out.

I'm going to end the experiment now since it's bedtime. Some weekend I might go for the maximum just to see what it is, but 4+ hours with that much current going out to four microphones, plus the ability to hot-swap the batteries to double that time if necessary (since the recorder simply switches to the internal AA cells during the interruption) makes this a very, very useful arrangement.

The only (slight) down side is that it's fairly easy for the power plug to come loose from the recorder, since the power socket is set about 1/4" deep into the "well" area, and the cable has a right-angle connector which rides against the rim surrounding the well.

--best regards

P.S.: I didn't set the cutoff level for external powering to 9.0 Volts; I simply left it set to "Adapter."


I actually gaffer taped a 9v DVD battery to the bottom of my R44 more than a year and a half ago and have never looked back and have never taken it off. The right angle mini jacks are also taped both to the battery and to the recorder -- semi-permanently. This obviously won't work for everyone, but I never use AA's and in the few rare cases where I need more than 5+ hours of run time, I bring a second DVD and just un-gaffer the cord from the one battery to the other.

Also, FWIW, I easily get 5+ hours on one charge with all four channels running phantom, running at 24/44.1, monitoring with headphones, and with the LCD on the entire time -- and I bet it'd go another two hours before completely draining considering it rarely drops beyond three lights left for "normal" gigs. For "normal gigs" (say 2-3 hours each), it's a no-brainer, I no longer ever worry about running out, never worry about having AC power, never worry about it coming unplugged, and I can dump the files when I get home on the same charge still (for probably 50 recordings at this point, it's never failed me even once). It's freakin' great, especially compared to AA's, where I was always worried about running out.

You can get a glimpse of my gaffered setup and a perfect bag for the R44 at this old post of mine:

http://taperssection.com/index.php?topic=107018.msg1431179#msg1431179
« Last Edit: December 29, 2009, 01:43:23 AM by BayTaynt3d »
BayTaper.com | One Man’s Multimedia Journey Through the San Francisco Jazz & Creative Music Scene

Offline acidjack

  • Site Supporter
  • Trade Count: (37)
  • Needs to get out more...
  • *
  • Posts: 5839
  • Gender: Male
Re: Easiest way to power an R-44?
« Reply #13 on: January 11, 2010, 11:11:08 PM »
Seconded on the DVD player batter.  Another name is "RB-270".  Somewhere here there is a thread with a ton of different names.  Some DVD batteries are 7.5V, most are 9V, and you want 9V.

Generally, they come with a cable, and adapter tips.  The problem is that Edirol wires things up backwards with respect to the rest of the world (Edirol has positive on the outside), so you'll need to cut the cable in the middle, and solder it back together with red-black mixed.  R44, R4, and UA-5 all the same in this regard.

Or, if you don't solder, go to Radio Shack and get the "Adapt-a-plug" kit with a cable and a "B" tip and an "M" tip, for the overpriced amount of about $20. Plug one tip on (+) and the other tip on (-).  It doesn't matter which is plus and which is minus, just so long as they aren't both the same.

OK, so just to be clear (I finally got around to picking this stuff up):

1. Plug adaptaplug (B) into one end.
2. Plug adaptaplug (M) into the other.
3. Does not matter which end is plugged into the R-44

is that it?
Mics: Schoeps MK4V, MK41V, MK5, MK22> CMC6, KCY 250/5, KC5, NBob; MBHO MBP603/KA200N, AT 3031, DPA 4061 w/ d:vice, Naiant X-X, AT 853c, shotgun, Nak300
Pres/Power: Aerco MP2, tinybox v2  [KCY], CA-UBB
Decks: Sound Devices MixPre 6, Zoom F8, M10, D50

My recordings on nyctaper.com: http://www.nyctaper.com/?tag=acidjack | LMA: http://www.archive.org/bookmarks/acidjack | twitter: http://www.twitter.com/acidjacknyc | Soundcloud: https://soundcloud.com/acidjacknyc

kirk97132

  • Guest
  • Trade Count: (0)
Re: Easiest way to power an R-44?
« Reply #14 on: January 12, 2010, 04:43:34 PM »
Seconded on the DVD player batter.  Another name is "RB-270".  Somewhere here there is a thread with a ton of different names.  Some DVD batteries are 7.5V, most are 9V, and you want 9V.

Generally, they come with a cable, and adapter tips.  The problem is that Edirol wires things up backwards with respect to the rest of the world (Edirol has positive on the outside), so you'll need to cut the cable in the middle, and solder it back together with red-black mixed.  R44, R4, and UA-5 all the same in this regard.

Or, if you don't solder, go to Radio Shack and get the "Adapt-a-plug" kit with a cable and a "B" tip and an "M" tip, for the overpriced amount of about $20. Plug one tip on (+) and the other tip on (-).  It doesn't matter which is plus and which is minus, just so long as they aren't both the same.

OK, so just to be clear (I finally got around to picking this stuff up):

1. Plug adaptaplug (B) into one end.
2. Plug adaptaplug (M) into the other.
3. Does not matter which end is plugged into the R-44

is that it?
NO, not exactly.  Only one end will fit the R-44, you can look at it and tell.  Make sure that you did not reverse polarity on both ends, only one end should have reversed polarity. 

 

RSS | Mobile
Page created in 0.282 seconds with 43 queries.
© 2002-2018 Taperssection.com
Powered by SMF