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Go Back   Wave Music Community Board > Tech Talk for Gearheads > Sound Installers and Manufacturers

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  #1  
Old 03-19-2013, 02:19 AM
Pern Pern is offline
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Bozure ISO-1 Isolator

The first version of it that is released is the "Built And Tested PCB".




Bozure ISO-1 Specs:
-----------------------
- Low / Mid / High. 10Hz-250Hz / 250Hz-4000Hz / 4000Hz- 25000Hz.
- +8dB or +13dB Max gain versions (Signal Gain with potentiometer at max).
- High Quality ALPS RK27 Potentiometers ("Blue Velvet").
- AC In: 18V AC.
- PCB Size: 23.3cm * 16.0cm / 9.2" * 6.3"
- Same type of high quality components as in all Bozure projects/products.


Time Limited Introduction Offer (Valid to April 14)
--------------------------------------------------------
- 1 Bozure ISO-1, Built and tested PCB.
- 3 Knobs.
- 4 Gold Plated RCA Chassis Connectors.
- 1 DC Jack, Insulated Chassis Mount.
- 1 Metal LED Socket.
- 1 3mm Red LED.
- 1 Solder Tag.

USD 210.00


Blog Post: How to "build" a working Isolator using the ISO-1 Built And Tested PCB.

http://www.bozure.com/BlogPost.aspx?PostID=23



More Information available at:

http://www.Bozure.com

http://www.facebook.com/Bozure

Email: info@bozure.com
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Last edited by Pern : 03-19-2013 at 09:10 AM.
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  #2  
Old 03-22-2013, 04:16 PM
Lime Twig Lime Twig is offline
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Wow! Congratulations, Pern! So excited to see this come to fruition!
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  #3  
Old 03-25-2013, 01:41 AM
Pern Pern is offline
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Thanks

Since i need a ISO in some of my Mixer plans i had to finish it...
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  #4  
Old 03-25-2013, 12:22 PM
rs_ rs_ is offline
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Great to see this stuff getting into more and more hands.

Did you experiment with rolling opamps in this circuit? Any opinions on that?

rs
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  #5  
Old 03-26-2013, 02:31 AM
Pern Pern is offline
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Yes, i did. But i have already done so much of that before. Now i mostly work with a mix of component brands and models that i like.

I think that you can do only so much with replacing a single component. You have to look at the whole design and the sum of all components if you want to do any drastic changes.
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  #6  
Old 03-26-2013, 11:24 PM
charles0322 charles0322 is offline
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what is the preferred method of payment? thanks, C
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  #7  
Old 03-26-2013, 11:43 PM
Pern Pern is offline
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PayPal.

Order Info is here: http://www.bozure.com/T1.aspx?PID=101
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  #8  
Old 03-27-2013, 12:34 PM
rs_ rs_ is offline
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Thanks for the info.

I've got a +/- 18V DC power supply. Could I use that supply instead, bypassing the first power input and inserting it at the DC output terminals?

rs
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  #9  
Old 03-28-2013, 01:31 AM
Richi Richi is offline
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Good work Pern, i'm sure you'll have plenty of success.

Rolling op-amps is a little futile and time wasting without proper measurements, been down that path too often and without measuring it's like a mad dog chasing it's own tail.

Bias of the experimenter really does come into play when only using your ears, i have been guilty of it and when a difference is found it can often be caused by poor implementation.

Save me going on, great read here.
http://nwavguy.blogspot.com.au/2011/...ths-facts.html
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  #10  
Old 03-28-2013, 03:49 AM
Estacy Estacy is offline
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darn, just ordered an Omnitronic isolator, then saw this. Price difference is marginal...
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  #11  
Old 03-28-2013, 04:16 AM
Pern Pern is offline
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This one use 100% high quality components (Carbon Film Resistors, ELNA Silmic II Caps, TL074 etc) . So it's not really the same as the omnitronic, you should compare it with ISOs using similar type of components.

The design goal was not to build the cheapest possible ISO where price was the most important factor.
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Last edited by Pern : 03-28-2013 at 05:10 AM.
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  #12  
Old 03-28-2013, 04:26 AM
Pern Pern is offline
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@RS

Yes you can use your own PSU. But you should then remove the regulators and connect the + and - to where the regulators output pins was + GND.
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  #13  
Old 03-29-2013, 04:45 PM
rs_ rs_ is offline
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Just ordered one. Looks like it will compliment my MP24 conversion project perfectly.

rs
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  #14  
Old 06-06-2013, 06:02 PM
Lime Twig Lime Twig is offline
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Got my parts in the mail a few days ago, just waiting on the power supply to arrive from another distributor. Excited to get soldering!

Anyone else built one? Anyone building one now? Want to trade tips/pics/first impressions?
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