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Author Topic: Tascam DR-70D - modification discussion  (Read 32161 times)

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Offline F.O.Bean

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Re: Tascam DR-70D - modification discussion
« Reply #90 on: August 20, 2016, 03:45:09 AM »
Can anyone who has gotten the Busman MOD to their DR-70D, please tell me how much it costs to get all 4 channels done and the opamps switched out and everything? Isn't Noah's DR-70D Busman modded? Since I have [2] 70D's, I was thinking of getting one of them modded this winter by Busman, and A/B the stock vs Busman 70D's, and see which I prefer! The Busman MOD might benefit my PFA->70D rig more, while the stock 70D be better suited for when I run my VMS->70D!

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Offline voltronic

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Re: Tascam DR-70D - modification discussion
« Reply #91 on: August 20, 2016, 07:21:52 AM »
I don't know anything about the Busman mod, but I can tell you that the total cost for me to do the Jim Williams mod was $136, including return shipping.  All of my recordings posted here with 4061s have been through PFAs into the modded 70D, FWIW.

When you're deciding what to mod or not, it's worth asking Busman what is and is not modded.  The JW Mod affects the 4 combo inputs as well as the 3.5 mm line inputs and outputs.
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Offline F.O.Bean

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Re: Tascam DR-70D - modification discussion
« Reply #92 on: August 20, 2016, 08:11:48 AM »
Thanks Volt +T 8)
Recording Rigs:
Schoeps MK4's & MK41's ->
Schoeps | NBob 250/0 KCY's ->
Naiant +60v/Low Noise PFA's ->
DarkTrain Right Angle Stubby XLR's ->
Sound Devices MixPre-6 & MixPre-3 ->
SanDisk 128gb Extreme Pro & 2x 64gb Ultra Plus

Portable Playback Rigs:
Campfire Audio Andromeda & Dorado | Westone (2nd Generation) UM Pro 30 IEM's ->
Linum G2 SuperBax & Bax |  2x CA/ALO SPC Litz | Sony MUC-M2BT1 LDAC MMCX Cables ->
Shanling M5s & M0 | Sony NW-A35 DAP's

DAW:
Dell Inspiron 5570-5521 SLV Laptop
(Pentium i5 Processor/8gb RAM/256gb SSD)

http://www.archive.org/bookmarks/diskobean | http://www.archive.org/bookmarks/Bean420 | http://bt.etree.org/mytorrents.php

Offline Wmorris

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Re: Tascam DR-70D - modification discussion
« Reply #93 on: August 22, 2016, 09:44:04 AM »
I have had mine modded by Busman, here is what was on the invoice and price when mine was done about 5 months ago.

Tascam DR70 modifications
replacement of op amps and capacitors in input path. replacement of op amps for line in and headphone out as well.   1   $150.00   $150.00


I haven't ran my Mini-MP since having the mod done, love the sound with my KM184's.  If I can get caught up with work I will try to put some shows up with the combo.
km184>MiniMp>modSBM-1>PMD670

Offline voltronic

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Re: Tascam DR-70D - modification discussion
« Reply #94 on: August 22, 2016, 01:26:56 PM »
I have had mine modded by Busman, here is what was on the invoice and price when mine was done about 5 months ago.

Tascam DR70 modifications
replacement of op amps and capacitors in input path. replacement of op amps for line in and headphone out as well.   1   $150.00   $150.00


I haven't ran my Mini-MP since having the mod done, love the sound with my KM184's.  If I can get caught up with work I will try to put some shows up with the combo.

In that case it sounds very similar to the JW Mod in what was done, but I'm sure with different parts being used.  I think someone here at one point mentioned Busman was using Analog Devices opamps, for instance.
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I am hitting my head against the walls, but the walls are giving way.    ///    If a composer could say what he had to say in words he would not bother trying to say it in music.
- Gustav Mahler

Offline F.O.Bean

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Re: Tascam DR-70D - modification discussion
« Reply #95 on: August 22, 2016, 11:35:01 PM »
I have had mine modded by Busman, here is what was on the invoice and price when mine was done about 5 months ago.

Tascam DR70 modifications
replacement of op amps and capacitors in input path. replacement of op amps for line in and headphone out as well.   1   $150.00   $150.00


I haven't ran my Mini-MP since having the mod done, love the sound with my KM184's.  If I can get caught up with work I will try to put some shows up with the combo.

+T Thanks for the info 8) I think that $150 is DEF a fair price for having that done IMO! I'll prob get Busman to MOD mine this fall/winter, and mainly use the Busman MOD 70D with my PFA>70d rigs and as my main 70d :) And I will have the stock 70D to COMP against! I'll just run mk4/41->kcy->PFA->Splitters->Busman 70D + Stock 70D and see which I prefer!
Recording Rigs:
Schoeps MK4's & MK41's ->
Schoeps | NBob 250/0 KCY's ->
Naiant +60v/Low Noise PFA's ->
DarkTrain Right Angle Stubby XLR's ->
Sound Devices MixPre-6 & MixPre-3 ->
SanDisk 128gb Extreme Pro & 2x 64gb Ultra Plus

Portable Playback Rigs:
Campfire Audio Andromeda & Dorado | Westone (2nd Generation) UM Pro 30 IEM's ->
Linum G2 SuperBax & Bax |  2x CA/ALO SPC Litz | Sony MUC-M2BT1 LDAC MMCX Cables ->
Shanling M5s & M0 | Sony NW-A35 DAP's

DAW:
Dell Inspiron 5570-5521 SLV Laptop
(Pentium i5 Processor/8gb RAM/256gb SSD)

http://www.archive.org/bookmarks/diskobean | http://www.archive.org/bookmarks/Bean420 | http://bt.etree.org/mytorrents.php

Offline LIVEMUSIC752

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Re: Tascam DR-70D - modification discussion
« Reply #96 on: August 29, 2016, 06:15:31 PM »
I don't know anything about the Busman mod, but I can tell you that the total cost for me to do the Jim Williams mod was $136, including return shipping.  All of my recordings posted here with 4061s have been through PFAs into the modded 70D, FWIW.

When you're deciding what to mod or not, it's worth asking Busman what is and is not modded.  The JW Mod affects the 4 combo inputs as well as the 3.5 mm line inputs and outputs.

Voltronic so opinion is if your tape/record AC/DC or that type 90DB Plus Kind Of P.A. the mod is not necessary.
been thinking about getting a 70D.

Offline voltronic

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Re: Tascam DR-70D - modification discussion
« Reply #97 on: August 29, 2016, 07:56:08 PM »
I don't know anything about the Busman mod, but I can tell you that the total cost for me to do the Jim Williams mod was $136, including return shipping.  All of my recordings posted here with 4061s have been through PFAs into the modded 70D, FWIW.

When you're deciding what to mod or not, it's worth asking Busman what is and is not modded.  The JW Mod affects the 4 combo inputs as well as the 3.5 mm line inputs and outputs.

Voltronic so opinion is if your tape/record AC/DC or that type 90DB Plus Kind Of P.A. the mod is not necessary.
been thinking about getting a 70D.

Any mod would be a waste of money for anyone doing stack recording of loud rock, in my opinion.  Others here will say it's a waste of money period, but it made an audible difference in my recordings (acoustic / classical / choral).
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- Gustav Mahler

Offline vwmule

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Re: Tascam DR-70D - modification discussion
« Reply #98 on: August 30, 2016, 10:01:17 AM »
Really love this as a backup deck. Sips batteries and is reliable. Only downside, as we all know, is the level knobs are easily moved. Anyone figure out a way to fix that? Rubber band?

Offline voltronic

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Re: Tascam DR-70D - modification discussion
« Reply #99 on: August 30, 2016, 05:06:03 PM »
Really love this as a backup deck. Sips batteries and is reliable. Only downside, as we all know, is the level knobs are easily moved. Anyone figure out a way to fix that? Rubber band?

Set levels, engage hold switch?
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Offline vwmule

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Re: Tascam DR-70D - modification discussion
« Reply #100 on: August 30, 2016, 07:36:04 PM »
I did that but the hold function worries me as you potentially could power down the deck by pushing the button down too hard, no?

Offline voltronic

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Re: Tascam DR-70D - modification discussion
« Reply #101 on: August 30, 2016, 10:05:53 PM »
I did that but the hold function worries me as you potentially could power down the deck by pushing the button down too hard, no?

Hold is in the opposite direction.  There's no risk of powering down accidentally while engaging hold.  I use it for every concert and have never had an issue.

What does this have to do with a modded deck?  Seems more suited to the regular discussion thread, since those who have no interest in the mods probably ignore this thread
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Tascam DR-70D FAQ
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I am hitting my head against the walls, but the walls are giving way.    ///    If a composer could say what he had to say in words he would not bother trying to say it in music.
- Gustav Mahler

Offline vwmule

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Re: Tascam DR-70D - modification discussion
« Reply #102 on: August 30, 2016, 11:13:25 PM »
Disengaging hold is a downward motion, toward off, which is my point about risking shutting down the deck.

Apologies to all of you who had to suffer through this radical detour from internal mods.

Offline voltronic

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Re: Tascam DR-70D - modification discussion
« Reply #103 on: August 31, 2016, 06:00:41 AM »
Disengaging hold is a downward motion, toward off, which is my point about risking shutting down the deck.

Apologies to all of you who had to suffer through this radical detour from internal mods.

Oh, I thought you were worried about engaging hold.  The good news is that you have to hold power for quite a while to get it to turn off, so I still don't think there's much risk of this happening accidentally.
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Tascam DR-70D FAQ
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I am hitting my head against the walls, but the walls are giving way.    ///    If a composer could say what he had to say in words he would not bother trying to say it in music.
- Gustav Mahler

Offline morst

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Re: Tascam DR-70D - modification discussion
« Reply #104 on: August 31, 2016, 06:32:59 PM »
Disengaging hold is a downward motion, toward off, which is my point about risking shutting down the deck.
The good news is that you have to hold power for quite a while to get it to turn off, so I still don't think there's much risk of this happening accidentally.

I counted about a two-second delay before powering down.

Compare this to approx 3.5 seconds to get the display to light up when powering up!?!

Ain't that weird? I don't blame VWMULE for being a bit worried, but as long as you feel it click off of hold and then you let it go, you'll be fine.
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