Ironamp Video Posted - Page 9

DIYspaceW · 5th April 2014, 01:26 PM

Quote:

Originally Posted by Michael Rothacher

Yes, what ZM says.

Also, here's a little update: I just got my top panels and custom parts from Edcor. So, I'm working on the final assembly as we speak. Then to make a video, which takes time.

Nice! looking forward to see the working amp on video...

soundhappy · 07:59 PM

Quote:

Originally Posted by Michael Rothacher

Yes, what ZM says.

Also, here's a little update: I just got my top panels and custom parts from Edcor. So, I'm working on the final assembly as we speak. Then to make a video, which takes time.

Thanks Mr Rothacher for news.
What Edcor parts is something " special " to be named custom ?
Have a nice day !

Tom V · 6th April 2014, 12:50 AM

I'm looking forward to this!!

dimkasta · 9th April 2014, 12:23 AM

Very nice video.

If you are taking notes for part two, I would love to see some 4ohm love since we are using an output trafo.

I had a look at the Hammond line since it would be easier for me to get, but they seem to be designed for tubes. Higher primary impedance, lower currents and weird pinouts, and I was lost.
You think we can make it work with something like that? Tube oriented trafos should be much easier to source. Or the line is getting very steep?

http://www.hammondmfg.com/pdf/EDB1650NA.pdf

Tom V · 21st April 2014, 03:32 PM

I really want to build this! Will RCA outputs from an iPhone be a good way to drive it?

DIYspaceW · 21st April 2014, 03:36 PM

Quote:

Originally Posted by Tom V

I really want to build this! Will RCA outputs from an iPhone be a good way to drive it?

I doubt that!

Tom V · 21st April 2014, 03:48 PM

>I doubt that!

A specific reason? Not enough gain? Wrong output impedance?

DIYspaceW · 04:02 PM

First of all 1V RMS output its way too low for direct driving the SIT.
The output impenace is ok.
Most important for me is the sound quality, I doubt its any good. I have
an ipod who served me once for testing as a source and it sounded ok,
but way toooo bad...But we all have diferent tastes, so if you dont want to build
or buy a good source (dac,cd player, else...) it can be as a substitute but you will need an pre amp (20x gain or more) whit low output impedance to be able to drive a SIT like this. Just my 2 cents...

Tom V · 21st April 2014, 04:04 PM

I use my iPhone to drive my Topping T-amp and Fostex Metronomes (uncompressed AAC captured from CD's) and it sounds pretty good to me.

Thanks for the input, I guess I will need a pre-amp.

Zen Mod · 4th May 2014, 08:46 PM

VBLOG #1: Curve Tracer, Big VFET, SIT Modelling, Ironamp - YouTube

I'm , besides being even more ignorant then usual , simply jealous

9th April 2014, 12:23 AM	#84
dimkasta diyAudio Member Join Date: May 2010 Location: Athens	Very nice video. If you are taking notes for part two, I would love to see some 4ohm love since we are using an output trafo. I had a look at the Hammond line since it would be easier for me to get, but they seem to be designed for tubes. Higher primary impedance, lower currents and weird pinouts, and I was lost. You think we can make it work with something like that? Tube oriented trafos should be much easier to source. Or the line is getting very steep? http://www.hammondmfg.com/pdf/EDB1650NA.pdf __________________ Second harmonic and semi-sweet wine for everyone...

21st April 2014, 03:59 PM	#88
DIYspaceW diyAudio Member Join Date: May 2009 Location: Slovenia	First of all 1V RMS output its way too low for direct driving the SIT. The output impenace is ok. Most important for me is the sound quality, I doubt its any good. I have an ipod who served me once for testing as a source and it sounded ok, but way toooo bad...But we all have diferent tastes, so if you dont want to build or buy a good source (dac,cd player, else...) it can be as a substitute but you will need an pre amp (20x gain or more) whit low output impedance to be able to drive a SIT like this. Just my 2 cents... Last edited by DIYspaceW; 21st April 2014 at 04:02 PM.

4th May 2014, 08:46 PM	#90
Zen Mod diyAudio Member Join Date: Jan 2003 Location: ancient Batsch , behind Iron Curtain	VBLOG #1: Curve Tracer, Big VFET, SIT Modelling, Ironamp - YouTube I'm , besides being even more ignorant then usual , simply jealous __________________ my Papa is smarter than your Nelson ! clean thread; Cook Book;PSM LS Cook Book;Baby DiyA ;Mighty ZM's Bloggg;Papatreasure;Papa...© by Mighty ZM

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6th April 2014, 12:50 AM	#83
Tom V diyAudio Member Join Date: Jan 2010	I'm looking forward to this!!

21st April 2014, 03:32 PM	#85
Tom V diyAudio Member Join Date: Jan 2010	I really want to build this! Will RCA outputs from an iPhone be a good way to drive it?

21st April 2014, 03:48 PM	#87
Tom V diyAudio Member Join Date: Jan 2010	>I doubt that! A specific reason? Not enough gain? Wrong output impedance?

21st April 2014, 04:04 PM	#89
Tom V diyAudio Member Join Date: Jan 2010	I use my iPhone to drive my Topping T-amp and Fostex Metronomes (uncompressed AAC captured from CD's) and it sounds pretty good to me. Thanks for the input, I guess I will need a pre-amp.

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