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Post by electronumpty on Apr 12, 2020 17:43:08 GMT
Wanted to fit in the case for a look see, nice and swish. 🙂   |
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Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,434
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Post by Bigman80 on Apr 12, 2020 18:14:56 GMT
Wanted to fit in the case for a look see, nice and swish. 🙂 Yes, tasty indeed |
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Post by electronumpty on Apr 13, 2020 21:03:19 GMT
Finished just need to wait for the power supply to arrive before testing without the chips in🙂   |
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Post by antonio on Apr 14, 2020 4:48:22 GMT
It's getting there.
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Post by electronumpty on Apr 16, 2020 15:46:53 GMT
Wow I have sound 1st go! Fist project that hasn't needed some expert attention (yet) . Feeling quite chuffed. 🙂  |
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Post by sq225917 on Apr 16, 2020 16:01:47 GMT
What's the dc offset on the output, 2-3mV is typical
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Post by electronumpty on Apr 16, 2020 16:04:04 GMT
Read 2.9 and 2.8
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Post by electronumpty on Apr 17, 2020 21:37:53 GMT
In place and sounding mighty fine! 🙂  |
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Bigman80
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The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,434
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Post by Bigman80 on Apr 17, 2020 23:30:33 GMT
In place and sounding mighty fine! 🙂 Looks great! |
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Post by jimbo on Apr 18, 2020 5:07:07 GMT
Yes looks very good indeed.
I wonder how this compares to Tom Christansens HPA 1 headphone amp?
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Post by electronumpty on Apr 18, 2020 9:07:53 GMT
The HPA 1 has better specs but is a pro build and all smd pcb. This is through hole so a difference there.
As for sound, well early days , initially there was some grain and sibilince which surprised me , but that has gone and atm all I can say is that it sounds very, very "clean". Not sterile though iyswim.
I like what I am hearing but it is certainly different to what I am used to. Will do a proper evaluation when there are a few hours on it.
Also, I am using a different cart to what I am used to atm, an Ortofon 2m red instead of a ZYX Yarra. Sounds a bit flat and with less immediacy than I am use to, but this I think will be a reflection on the cart and the transparency of the HP 2 , not the amp itself.
It will be interesting when I put the ZYX back in as I think I'll really be able to hear a difference.
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Post by jimbo on Apr 18, 2020 9:30:21 GMT
I see the HP1 gets superb reviews and it is mentioned how clean the sound is which sounds like your experience with the HPA 2?
I think the HP 1 costs £500, how much did the HPA 2 cost to build?
I think the 2M red does sound a little thin and flat.
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Post by electronumpty on Apr 18, 2020 9:40:06 GMT
The HPA1 is 899 dollars £720ish plus carriage and duty/Vat so approx 1k+ all in I would say.
This cost about £300 for the board and case inc duty plus £120 for parts inc the Alps.
If you don't by the case then knock off about £150 but you will have to source your own and I think it looks very smart.
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Post by jimbo on Apr 18, 2020 9:55:07 GMT
The HPA1 is 899 dollars £720ish plus carriage and duty/Vat so approx 1k+ all in I would say. this cost abou £300 for the board and case inc duty plus £120 for parts inc the Alps. If you don't by the case then knock off about £150 but you will have to source your own and I think it looks very smart.
That's a great price for a quality Headphone amp. I didn't realise the HPA1 was that expensive.
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Post by antonio on Apr 18, 2020 10:26:25 GMT
Well done electronumpty, great job there, and I also like the look of the case, matches the Firebottle.
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Post by electronumpty on Apr 18, 2020 11:03:54 GMT
Well done electronumpty, great job there, and I also like the look of the case, matches the Firebottle. Thanks , yes it does, there are quite a lot of components in the small board, 73 resistors and 50 odd caps, so I was a bit nervous when turning it on the 1st time but all seems well atm🙂 |
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Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,434
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Post by Bigman80 on Apr 18, 2020 11:57:53 GMT
Well done electronumpty, great job there, and I also like the look of the case, matches the Firebottle. Thanks , yes it does, there are quite a lot of components in the small board, 73 resistors and 50 odd caps, so I was a bit nervous when turning it on the 1st time but all seems well atm🙂 You've done well geezer. Top marks |
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Post by electronumpty on Apr 18, 2020 12:15:57 GMT
Cheers Oli , on to the BB mk 3 next!
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Post by electronumpty on May 17, 2020 17:59:42 GMT
Ok so thanks to Oliver i managed to get an Audiopills SA to try out in the amp. I was always going to try out something to teplace the Alps Blue at some stage. Wasn't sure about the size as it is considerably bigger than the Alps!  |
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Post by electronumpty on May 17, 2020 18:05:12 GMT
It fits just, very slightly too high as the fron plate is larger than the case but if I file it down but about half a mill it should be ok. Just need to make a bracket for it. A job for next weekend.  |
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Bigman80
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The HiFi Bear/Audioaddicts/Bigbottle Owner
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Post by Bigman80 on May 17, 2020 18:47:49 GMT
It fits just, very slightly too high as the fron plate is larger than the case but if I file it down but about half a mill it should be ok. Just need to make a bracket for it. A job for next weekend. I thought it might be tight. |
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Post by electronumpty on May 17, 2020 19:10:16 GMT
Yes it is , but not prohibitively so. Luckily!
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Bigman80
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The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,434
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Post by Bigman80 on May 17, 2020 19:14:50 GMT
Yes it is , but not prohibitively so. Luckily! Great stuff.... I'll be interested In your thoughts on how the sound changes |
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Post by electronumpty on May 23, 2020 15:27:02 GMT
Knocking up a bracket today.  |
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Post by electronumpty on May 23, 2020 17:03:25 GMT
Just need to driil the base now and solder stuff. have to wait till Monday now probably.   |
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Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,434
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Post by Bigman80 on May 23, 2020 17:05:56 GMT
Just need to driil the base now and solder stuff. have to wait till Monday now probably. Tidy! Hows the sound? |
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Post by electronumpty on May 23, 2020 17:16:01 GMT
Its not wired up yet, can't finish it tonight as it's gin o'clock! 😉
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Post by electronumpty on May 26, 2020 14:53:52 GMT
fitted just need to sort the wiring.  |
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Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,434
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Post by Bigman80 on May 26, 2020 14:55:27 GMT
fitted just need to sort the wiring. Looks spot on. Good work! |
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Post by electronumpty on May 26, 2020 15:20:11 GMT
Cake break😉  |
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