Become a Site Supporter and Never see Ads again!

Author Topic: AT853 phantom power  (Read 1328 times)

0 Members and 1 Guest are viewing this topic.

Offline xjsb125

  • Trade Count: (2)
  • Taperssection Newbie
  • *
  • Posts: 40
  • Gender: Male
    • An Our Lady Peace Fan Forum
AT853 phantom power
« on: January 28, 2017, 11:41:06 PM »
Quick question on using the AT853's>AT8538 phantom adapters>Tascam DR 70D: What voltage do I need to set the DR 70 to for phantom power? I've never used phantom power, or adapters for that matter, and I want to make sure I don't fry the mics the first time I use them.
"I'm the one who's gonna have to die when it's time for me to die. So let me live my life, the way I want to."

Offline Cheesecadet

  • Trade Count: (21)
  • Needs to get out more...
  • *****
  • Posts: 2464
  • Gender: Male
  • http://db.etree.org/cheesecadet
Re: AT853 phantom power
« Reply #1 on: January 29, 2017, 12:24:43 AM »
I believe 48p and the adapters step the voltage down for the mics.
AKG481's > Hi Hos > Naiant MPD-12 > Shure FP24 > Schoeps SCH-501 1/8" > Sony PCM-M10
DPA 4061's | AT853's (SC, C, O) | Tinybox | PIPsqueak | Darktrain/GAK | Audition CS6 | iZotope

06/22 Blue October, Gin Blossoms
07/14 Shooter Jennings

Online Hypnocracy

  • Site Supporter
  • Trade Count: (41)
  • Taperssection All-Star
  • *
  • Posts: 1836
  • Hypnocratic Missionary
    • Hypno on teh LMA
Re: AT853 phantom power
« Reply #2 on: January 29, 2017, 07:38:18 AM »
It works anywhere in a range of 11-52 volts

_____________
hypno on teh Archive

This must be heaven -- This is where the rainbow ends. At last it's the real thing...At least I can pretend.

Offline Karl

  • Trade Count: (0)
  • Taperssection Member
  • ***
  • Posts: 361
Re: AT853 phantom power
« Reply #3 on: January 29, 2017, 09:04:32 AM »
The mics run great at 48 volts phantom power.
My portable rig:

AT853>Tascam DR100 mkii

Offline yousef

  • Trade Count: (2)
  • Taperssection All-Star
  • ****
  • Posts: 1379
  • Gender: Male
Re: AT853 phantom power
« Reply #4 on: January 29, 2017, 11:18:28 AM »
The mics run great at 48 volts phantom power.

 :facepalm:
music>other stuff>ears
my recordings: http://db.etree.org/yousef
http://www.manchestertaper.co.uk
twitter: @manchestertaper

Offline lsd2525

  • Trade Count: (10)
  • Taperssection All-Star
  • ****
  • Posts: 1359
  • Gender: Male
  • Eschew obfuscation
Re: AT853 phantom power
« Reply #5 on: January 30, 2017, 09:13:53 AM »
I don't see any benefit in supplying 48v phantom since the adaptor is going to knock it the hell down. I would think that the 24v setting should be fine?
Mics: ADK A51s; AT4041; Superlux S502; CK91 active w/homebrew BB; AT853; Naiant X-X; Nak 300's
Recorders: M10; DR-60D; DR-70D

Offline Limit35

  • Trade Count: (2)
  • Taperssection Regular
  • **
  • Posts: 110
Re: AT853 phantom power
« Reply #6 on: January 30, 2017, 03:01:43 PM »
I don't see any benefit in supplying 48v phantom since the adaptor is going to knock it the hell down. I would think that the 24v setting should be fine?

I've run my 853s through a Naiant PFA at 24v, 48v doesn't seem necessary since the PFA brings the voltage down to 8v for PIP.

Offline lsd2525

  • Trade Count: (10)
  • Taperssection All-Star
  • ****
  • Posts: 1359
  • Gender: Male
  • Eschew obfuscation
Re: AT853 phantom power
« Reply #7 on: January 30, 2017, 03:44:40 PM »
I don't see any benefit in supplying 48v phantom since the adaptor is going to knock it the hell down. I would think that the 24v setting should be fine?

I've run my 853s through a Naiant PFA at 24v, 48v doesn't seem necessary since the PFA brings the voltage down to 8v for PIP.

Which is exactly what the AT8538 will do.....
Mics: ADK A51s; AT4041; Superlux S502; CK91 active w/homebrew BB; AT853; Naiant X-X; Nak 300's
Recorders: M10; DR-60D; DR-70D

Offline jagraham

  • Trade Count: (20)
  • Needs to get out more...
  • *****
  • Posts: 2489
  • Gender: Male
Re: AT853 phantom power
« Reply #8 on: February 02, 2017, 03:23:02 PM »
I might be trying this soon for the first time with the exact same gear. I've only ran the AT853s with the 4.7k mod adapter and had great results running > STC-9200(+15db) > DR-2D(LineIn). I'm wondering if I ran 853s > AT8538s > DR-70D, would I need to run line or mic in, and would I need to set the gain on low or medium? Also - would the quality be comparable to just using the 4.7k mod with the mics into the line in? I'm curious as to what the benefit is to using the 8538s.
Mics: Nak CM-300s, Nak CM-100s, CP-1s, CP-2s, AT-853s(Cards, Hypers, Omnis) CA-14s(Cards, Omnis)
Pres: CA STC-9200, CA-UBB
Recorders: Tascam DR-70D, DR-2D, Edirol R-09

ISO: 1 Teac ME-120, CP-3 Caps, AT-853 Subcard Caps

Offline lsd2525

  • Trade Count: (10)
  • Taperssection All-Star
  • ****
  • Posts: 1359
  • Gender: Male
  • Eschew obfuscation
Re: AT853 phantom power
« Reply #9 on: February 02, 2017, 03:28:26 PM »
I might be trying this soon for the first time with the exact same gear. I've only ran the AT853s with the 4.7k mod adapter and had great results running > STC-9200(+15db) > DR-2D(LineIn). I'm wondering if I ran 853s > AT8538s > DR-70D, would I need to run line or mic in, and would I need to set the gain on low or medium? Also - would the quality be comparable to just using the 4.7k mod with the mics into the line in? I'm curious as to what the benefit is to using the 8538s.

Mic in. The power adaptors let you power the mics with phantom power rather than the separate power modules. The gain would depend on how loud the source is
Mics: ADK A51s; AT4041; Superlux S502; CK91 active w/homebrew BB; AT853; Naiant X-X; Nak 300's
Recorders: M10; DR-60D; DR-70D

Offline 2manyrocks

  • Trade Count: (10)
  • Taperssection All-Star
  • ****
  • Posts: 1555
Re: AT853 phantom power
« Reply #10 on: February 02, 2017, 07:33:51 PM »
I think the resistor mod allows you to get by using a recorder's built in plug in power with the AT853s if the source isn't too loud.   

I also think the adjustable phantom power settings on the 70d are there to allow the user to more closely match the power output to the mic power requirements so you can extend the 70d battery life. 

What that means in terms of where the OP should run his mics using the phantom power adapters I don't know. 

Offline down2earthlandscaper

  • Multiple-Rig Maniac
  • Site Supporter
  • Trade Count: (24)
  • Taperssection Member
  • *
  • Posts: 495
  • Gender: Male
Re: AT853 phantom power
« Reply #11 on: February 03, 2017, 01:51:46 AM »
I've had consistently better results using the phantom power adapters. Really depends on how loud the source material is. For bluegrass and acoustic stuff the 4.7K 1/8" to "mic in" has been fine. But I tried that about 12 rows back at Tedeshci Truck Band and the recording distorted.
I've never had distortion in any situation while using the phantom power adapters. I agree that 24V is sufficient to run those.
Mics: CA-14(cards & omnis) and CA-11(cards & omnis) ; AT853's(cards, hypers, mini shotguns); Busman BSC-1 (cards, hypers, omnis)
Nakamichi CM300's (CP-1,2,3,4) Nakamichi CM700's (cards, omnis)
Tascam PE-120's (cards, omnis) Peluso CEMC-6 (cards and subcards)
DPA 4061's DPA 4022's
Preamps: CA-9100; Naiant Tinybox (12v/48v + PIP 8V); Naiant Littlebox;
DPA MPS6030; Sound Device Mix Pre-D
Decks: Sony PCM M10; Edirol R-4; Zoom H6; Marantz PMD-661; Sound Devices 722

Offline EvilEye

  • Wishes He Could Get Out More..
  • Trade Count: (9)
  • Taperssection Member
  • ***
  • Posts: 461
  • YEEEWRAAAUGHHH... OOOOHHH..YEAAAHH
Re: AT853 phantom power
« Reply #12 on: February 03, 2017, 08:10:47 AM »
I've used my Sound Devices MP2 with those AT XLR Phantom Adapters - the MP2 has switchable phantom power of either 15V or 48V.

I've always powered the ATs at 15V Phantom, never had a problem.

 (the AT adapters, as noted above, kick the voltage down - I thought to 9V, looks like 8V).
AKG 460/ck61/ck63 /ck2 / ck8
AT853RX  - O/SC/C/H
Nbob AKG actives / Naiant PFAs / Bumblebee MiAGi-II Silver Cables
FR2-LE (Oade mod) / PCM-M10 / DR-70D
SD MP-2 / CA-9100

Offline lsd2525

  • Trade Count: (10)
  • Taperssection All-Star
  • ****
  • Posts: 1359
  • Gender: Male
  • Eschew obfuscation
Re: AT853 phantom power
« Reply #13 on: February 03, 2017, 10:16:05 AM »
As long as we're on AT power adaptors / modules........

I usually run the AT8531 power modules with my AT853's with good success. As expected, because that's what comes with them. I always powered with an "A battery"; just figured out today that you can also leave the battery out and run phantom with these things.

I also have several AT8505 "Unipoint power supply" units. When I got these, I assumed they worked the same way. I can't find any info at all on the units. Does anyone know anything about them? They also accept a 1.5v "A" battery. I've tried all 4 of them with the battery; no dice. All I can figure is:

1. These don't work with the AT853's because of a different pin config.
2. Have to be powered by phantom (then why do they need a battery?)
3. All four units are faulty (I'm thinking not likely)

Anyone have any insight, experience,  spec sheet, wild ass guess or any other info?

Also trying to figure out if there are any major differences between the AT853 and the U853R. (such as the pin config). I'm thinking same basic mic, new name?
Mics: ADK A51s; AT4041; Superlux S502; CK91 active w/homebrew BB; AT853; Naiant X-X; Nak 300's
Recorders: M10; DR-60D; DR-70D

 

RSS | Mobile
Page created in 0.144 seconds with 36 queries.
© 2002-2017 Taperssection.com
Powered by SMF
Website Design by Foxtrot Media, Inc., a Baltimore Website Company