Castanet completed

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Scott B

Castanet completed
« on: 30 Jun 2010, 01:54 pm »
I finally received the last parts for the Castanet and was able to complete it the night before last.  Yesterday I listened to vinyl that was fed from my Cornet2 to the Castanet to my AKG 701 headphones.   I know it has not had much break-in time yet,  but WOW! the Castanet sounds absolutely superb!  The sound stage is huge and I was hearing all sorts of detail that I have not heard in my records before.  So far I am very satisfied.

Scott

WyldRage

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Re: Castanet completed
« Reply #1 on: 30 Jun 2010, 07:23 pm »
Great to know, since I will also be building the Castanet, when I get back home.

Scott B

Re: Castanet completed
« Reply #2 on: 1 Jul 2010, 04:09 pm »
You won't be disappointed.

Yoda

Re: Castanet completed
« Reply #3 on: 3 Jul 2010, 02:56 am »
I second that!

Brinkman

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Re: Castanet completed
« Reply #4 on: 6 Jul 2010, 07:13 pm »
Scott,

Can you elaborate more on your Castanet build? Don't worry about the flowery adjectives if you dread that sort of thing; dynamic range, tonal accuracy, low-end presence, headroom, and noise floor are more my bag. Any parts upgrades would be interesting to hear about, especially if there were none at all!

I recently received some news on the domestic front that will only allow for a portable CD player and headphone setup (temporary move out of state). I can't live without tubes, so the Castanet would be doubling as headphone amp for both pre-recorded music and electric guitar noodling. So I may need one ASAP.

Scott B

Re: Castanet completed
« Reply #5 on: 14 Jul 2010, 11:07 pm »
Sure, I'll do my best.

First off, I did not make any part upgrades and stuck to the original parts list. 

From what I can tell, the Castanet plays music truthfully and balanced, never seeming too bright or overwhelmed by the lower end.  The highs are articulate but not harsh and the low end seems full-bodied and accurate.  The imaging is excellent as well - instruments are clearly separated, never bleeding into one another, and there is a huge sense of air and space.

The noise floor is almost non-existent.  When hooked up at the end of my vinyl setup, there is a small amount of hiss that I suspect is coming from Piccolo/Cornet2 configuration, and is not audible once music starts to play.   When hooked up to a digital source, I can not hear any noise whatsoever - even with the volume way up.  In fact there was a few times I got startled when I hit play because I didn't check to see where the volume knob was set at.   

But simply put, the Castanet sounds great to my ears and I would highly recommend it.

I can't comment on how the Castanet will work with an electric guitar, but I imagine any line source would sound fantastic.

Scott.

Brinkman

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Re: Castanet completed
« Reply #6 on: 15 Jul 2010, 12:34 pm »
Thanks, Scott!

I have recently done a bit of research on Parafeed circuits in order to fine-tune the Castanet build I hope to have completed very soon. The two aspects of the circuit I am focusing on are the plate chokes and the output transformers. The Parafeed caps (3.3uF) will probably be monkeyed with for a while after the build is otherwise complete. When I feel confident in my parts values, I'll start a thread to fill others in on my findings.

I've driven my headphones directly from the output of my wall-powered guitar effects pedals, so I'm not worried that adding the Castanet to the mix will do any harm. Rather, I wanted my last link in the signal chain to have tubes to warm up the rather tinny and obnoxious tone of the otherwise flexible digital effects pedals I use.

Regards,
Ben

WyldRage

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Re: Castanet completed
« Reply #7 on: 19 Jul 2010, 01:53 pm »
Just finished mine as well.

Quick impressions, before any A/B test: I believe it's the best of my three DIY tube amps I own and have built, the others being the Millett Hybrid MiniMax and the Bottlehead Speedball Crack. Strong and accurate bass, fast highs and oh so very dynamic. I got goosebumbs listening to RUSH - Tom Sawyer.

Brinkman

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Re: Castanet completed
« Reply #8 on: 19 Jul 2010, 05:09 pm »
Now that's an endorsement. I have a couple other PCBs for other headphone amps (the Aikido noval headphone amp and the SOHA II). When I get around to building them it will be fun to compare them to each other. But that's a while away.

For now the Castanet build charges on against a deadline.

WyldRage

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Re: Castanet completed
« Reply #9 on: 28 Jul 2010, 04:41 pm »
If anyone's interested, I posted a comparaison of my Castanet compared to the Speedball Crack and the MiniMax on head-fi last week.

Here's the link: http://www.head-fi.org/forum/thread/503622/showdown-3-diy-tube-and-hybrid-amps-millett-hybrid-minimax-bottlehead-speedball-crack-hagerman-castanet#post_6804622

Watson

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Re: Castanet completed
« Reply #10 on: 28 Jul 2010, 06:25 pm »
Thanks for your impressions. I've been considering building one of these as well.