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Old 8th October 2013, 09:45 PM   #371
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Yes, there is a bigger one from ST with mosfets that is rather good.
You could also build a Gainclone.
When you want really HiFi sound you can build my amp from the Nobrainer thread.
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Old 8th October 2013, 09:47 PM   #372
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Go to post 112.
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Old 9th October 2013, 11:26 AM   #373
RCruz is offline RCruz  Switzerland
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JGs Nobrainer and Nobrainer Discrete ?
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Old 9th October 2013, 11:26 AM   #374
RCruz is offline RCruz  Switzerland
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Is this the chipamp ? DIY Chip Amplifier Kits, PCB's, Components and Information.
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Old 9th October 2013, 12:34 PM   #375
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Yes, that is the no-brainer thread.
The Audio Sector Gainclone is not bad ether.
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Old 12th October 2013, 02:25 PM   #376
Rudolf is offline Rudolf  Germany
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Congratulation,

This has evolved into a viable product:

Click the image to open in full size.

Now can you give us some more information than here?
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Old 17th December 2013, 08:02 PM   #377
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Thanks.
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Old 17th December 2013, 08:03 PM   #378
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amroc - the room mode calculator
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Old 17th December 2013, 08:14 PM   #379
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Rudolf, the biggest problem i faced was to make the baffle as slim as possible.
Nobody will put a 1,2m wide baffle in his living room unless he ( she ) is as crazy as we are. That width is the minimum i identified to reach down deep enough to augment it with a sub where the transition frequency is not audible. I would say that is around 120Hz.
The first trick is to damp the back wave so we have more of a cardiod here. The second is to use a rather thick baffle that also makes the distructive path to the back a bit longer.
The acrylic extensions make the speaker at least visually slimmer.
I even personally prefer a single Enviee with wizzer but the world is not ready for this yet so i use the Enviee without wizzer and cross at ca. 8kHz with a 4th order L/R crossover to a RAAL dipole that is not damped in the back, safe a foam grill.
The black rings ensure time alignment so that i can save an all pass delay in the crossover.
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Old 17th December 2013, 11:18 PM   #380
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cornell researchers 3D print a fully functional loudspeaker
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