Abletec ALC1000 any experience?

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#81
UMarcus said:
@Pabo:
Thank you for Information.

One technical question about the ALC Series, especially the ALC0300-1300 Module:

Is the signal DC decoupled or need my source a dc couple capacitor?

Thanks,
regards
Marcus
Click to expand...

Hi Marcus
It is DC-coupled so you will either need to make sure that DC on the input is very low (or else you will end up pumping a rail) or you need to AC-couple. The input resistance is quite low so I recommend 100uF or so. Just remember that a too large value will require a long start up delay in order for the current trough to come down.
 
#82
Pabo said:
Hi Marcus
It is DC-coupled so you will either need to make sure that DC on the input is very low (or else you will end up pumping a rail) or you need to AC-couple. The input resistance is quite low so I recommend 100uF or so. Just remember that a too large value will require a long start up delay in order for the current trough to come down.
Click to expand...

Hi Patrik,
many thanks for clarification, thats good to know.

Regards
Marcus
 
#87
I see, thanks for the link (in case anyone else has the problem I did, I had to delete "http://" to get the link to work).

Actually "a powerful, transparent, musical sound utterly free from distortion" is the most subjective statement made, with the rest more or less factual and informative.

*Much* better than the usual marketing pseudotechnical and/or magical BS.

Pabo, what are the idle power losses?
 
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#92
I'm a little sad to see the ALC1000 disappear.

Does anyone know of a premade unit that will allow use of the unit with a standard 12V trigger that comes out of my preamp? The Abletec/Anaview ALC1000 board trigger, unlike ICEpower boards, has a disabled pin rather than an abled trigger pain. The amplifier goes into standby mode when by raising the disabled trigger to high at 3 to 4 volts. Disabled is released at 0 to 1.5 volts (low).

The threshold for the disabled high on the AMS1000 is about 2.5 Volts.
 
#93
Does anyone here know about ALC0300-2300 being sold on Shaw's website? ALC0300-2300 (2x150W) - Shaw Electronics

It does not seem to exist on Anaview's webiste: ALC series | Anaview

I read everywhere that ALC0300 is sold as monoblocks (ALC0300-1300), but then shaw has an ALC0300-2300 as well, which is stereo. Is this the same as ALC0300-2300, but with a dual channel implementation? Is it two monoblocks sold together? I'm a little bit confused.
 
#94
Hi bkdc.
The standby schematic in post 67 is simple enough to build on a small piece of matrix board or stripboard.
For 12v trigger you could increase the 2 x 300 ohm resistors to say 1k each (or a single 2k resistor). The red/green LEDs are a single 3 lead bi-colour device.
 
#95
Thanks Russc. I was able to rig something up with that. I should have read through the entire thread.

With regard to the Anaview AMS1000-2600 that is now IN STOCK at ProfusionPLC, the unavailability of the JST 17CZ-6H connector from any of the usual sources is going to limit builds. Minimum order 1000 pieces from any Chinese manufacturer. 🙂 If anyone knows where you purchase any without having to order 1000 minimum, I'd like to know too.
 
#96
Hi bkdc. Have you asked Profusion if they intend to supply connectors? If they cannot supply the mating connectors it'll certainly limit their sales.
I'm still highly delighted with my ALC0300-1300 monoblocks and Arduino/PG2320 pre-amp, thankfully I am not feeling the need to immediately upgrade to AMS series. .
 
#97
bkdc said:
Thanks Russc. I was able to rig something up with that. I should have read through the entire thread.

With regard to the Anaview AMS1000-2600 that is now IN STOCK at ProfusionPLC, the unavailability of the JST 17CZ-6H connector from any of the usual sources is going to limit builds. Minimum order 1000 pieces from any Chinese manufacturer. 🙂 If anyone knows where you purchase any without having to order 1000 minimum, I'd like to know too.
Click to expand...

I bought mine on conrad.fr or conrad.de
I don't find the 17 pins, but only 12 or 6 pins ( just for modulation)
Look at this forum post for more info:

Abletec Diy digital Audio Class D - Seite 19 - DIY-HIFI-Forum
 
#98
lienadjam said:
I bought mine on conrad.fr or conrad.de
I don't find the 17 pins, but only 12 or 6 pins ( just for modulation)
Look at this forum post for more info:
Click to expand...

I was able to find other CZ-6H connectors at sources in the USA (I usually purchase them from digikey.com), but the 17-pin connector is unavailable anywhere in the world! I've looked everywhere. I guess I can use 12-pin connectors and cut them apart and possibly splice two together with some epoxy with the spliced joint around a pin I don't need or use such as a ground pin.
 
#100
ddeacon - I was mistaken. I have had trouble finding CZ-6H connectors of any size in the USA. So still no luck here. Hopefully someone else in diyAudio will have better luck. Or perhaps ProfusionPLC will be able to make a large order and sell connector kits. It seems that the lack of the 17CZ-6H connector is going to prevent the general public from using the Anaview AMS1000 amplifier. I reviewed the JST brochure, and it seems that the CZ connector system has been designed to allow for high density connections. I can't say that the AMS1000 appears cramped for board space, but I'm guessing that the engineers thought this was the best connector option.
 
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