Lab Gruppen FP14000 clone amplifiers - Page 192 - AVS Forum | Home Theater Discussions And Reviews
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post #5731 of 5751 Old 02-07-2017, 09:53 AM
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Ive had my 2 Sanway fp14k for about a year now I guess with no issues, I recently took the time to replace the fans as per the instructions and part numbers provided by Notnyt. I very much appreciate the time you spent finding the correct fan combination. I had the newer version with 2 80mm and 3 60 mm, and I only installed two 80 and 2 60 since I only ordered 4 and 4 not knowing they changed it. I just did one so far to see the difference in temps. Mine are in a full rack, not out in the open. The fan mod makes it soo much quieter, it is very much worth the effort. These things are on at least 6 hours a day on the weekend and 14 on weekends usually at moderate levels.

Here is my question, the unmodded amp runs at 100-103 degrees, the one I replaced the fans runs about 115-117 now. Do you think that is too high of a temp for the amp to remain stable and reliable?
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post #5732 of 5751 Old 02-07-2017, 10:37 AM - Thread Starter
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Should be fine. I ran mine for like 5 years without any problems.
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post #5733 of 5751 Old 02-07-2017, 10:39 AM
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Thanks for the quick response and being such a helpful resource on this board! I thought it would be alright, just wanted to be sure.
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post #5734 of 5751 Old 02-07-2017, 07:25 PM
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Are the 5 fan versions 48 volt? I have not opened my newest amp up to see.
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post #5735 of 5751 Old 02-07-2017, 07:35 PM
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Has anyone ordered the 10Q in a while?

Just curious how the success rate is going on that model. FP14 seems to be great and the 10Q seem to have the issues. So I am hopeful that everything has improved since then.
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post #5736 of 5751 Old 02-08-2017, 03:38 PM
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I'm not sure, they are already back together and I can't hear them spinning anymore so I'm overjoyed! I used the same fans as the op in the first post.
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post #5737 of 5751 Old 02-08-2017, 04:17 PM
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My Sanway FP14k just arrived today. Communication with Johnson was very good despite the time difference. It was packed well - a single outer cardboard box, a double-thick inner cardboard box, and additional sheets of cardboard on the top/bottom inside that. The padding was admittedly a little unorthodox - Sanway catalogs which were rolled up and taped, arranged around the amp as support. No damage whatsoever, perfect condition. This amp will be driving a ported sub with a Pierce 2k series driver, with a second in my eventual future. New fans and wirewound resistors arrived at the same time, as recommended by notnyt in the fan mod post. Good thing too - I fired this sucker up once on my lunch break and it is super loud, especially when it's flying full speed right on power-up.
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post #5738 of 5751 Old 02-08-2017, 08:06 PM
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Did you get the enhanced version? Any photos of the rear panel and/or insides to share?
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post #5739 of 5751 Old 02-08-2017, 08:12 PM - Thread Starter
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Did you get the enhanced version? Any photos of the rear panel and/or insides to share?
Sanway doesn't have an enhanced version.
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post #5740 of 5751 Old 02-08-2017, 09:00 PM
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The newest version of the Sanway FP14000 is supposed to be a bit "enhanced" compared to older models. Noty tested on his bucket and they can sustain more max / sinewave power compared to the "older" Sanway versions.

They have gone from 4 to 5 fans (I don't know the rated fan voltage yet (old models are 24v - new models may be 48 volt - I might open my new one up and see this weekend) I have an older Sanway FP14000 and a new 5 fan version that is also supposed to be 2 ohm capable. The older versions are 2.66? ohm capable according to Sanway. I have never tested one below a rated 4 ohm subwoofer though.

If you are pushing these to the clip lights you will likely need more than a 20 amp / 110 volt circuit to power them and are likely pushing some serious woofage!?
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post #5741 of 5751 Old 02-08-2017, 09:24 PM
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From what Notnyt stated the Sanways are not "enhanced," versions. The version he tested that had more sustained voltage was the BT audio version I believe. Not the Sanway. Although I have never seen anyone else order anything from BT Audio so I think most will just continue to order from Sanway.
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post #5742 of 5751 Old 02-08-2017, 09:46 PM
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Like notnyt said, there's no enhanced version from Sanway. The new version with 5 fans has 3x 60mm 24V fans and 2 80mm 48V fans. The 48V fans were not soldered into the Fan+/Fan- contacts, presumably in order to get higher voltages. Instead, the positive leads were both soldered into a single Fan+ contact, and both negative leads were soldered onto a different contact nearby that was not labeled. When I probed between these two contacts, I got ~53V on start-up which settled to ~21V at idle. On the other hand, the Fan+/- contacts provide ~26V at start-up and 11V at idle. So when I installed my new 24V fans I used those Fan+/- contacts. Some pictures attached. Also my power board says 10000Q v7

Stock fans


60mm fan soldering locations near the front transformer


Original 80mm fan soldering points


New solder points after fan mod
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post #5743 of 5751 Old 02-09-2017, 06:51 AM
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Quote:
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Sanway doesn't have an enhanced version.
I could have sworn you said that the newer 2-ohm-stable Sanway performed similarly to the enhanced BT Audio?
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post #5744 of 5751 Old 02-09-2017, 07:43 AM
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I could have sworn you said that the newer 2-ohm-stable Sanway performed similarly to the enhanced BT Audio?
I believe he did - but it's not necessarily using the same "enhancements" that the BT Audio version has. If you take off the lids, a new 2-ohm stable Sanway FP14k and a BT Audio enhanced FP14k still look a bit different. The Sanway has 10 caps on the front left while the BT has 14, plus I'm sure there are other differences I don't know about. Sanway might have just started sourcing higher quality components in order to achieve the 2-ohm stable version. For example, the majority of the output transistors on mine are ON Semiconductor (who also owns Fairchild), a major player in the semiconductor device world rather than some no-name off-brand.
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post #5745 of 5751 Old 02-09-2017, 08:57 AM
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the new one isn't "enhanced" like the Bt one with a pile of extra capacitors. The new sanway one just has a different power supply
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post #5746 of 5751 Old 02-09-2017, 10:12 AM
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Okay, but if the performance is about the same, what do the differences matter?
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post #5747 of 5751 Old 02-09-2017, 02:36 PM - Thread Starter
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the new one isn't "enhanced" like the Bt one with a pile of extra capacitors. The new sanway one just has a different power supply
PS isn't even much different, just some different transformers.
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post #5748 of 5751 Old 02-09-2017, 02:37 PM - Thread Starter
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Okay, but if the performance is about the same, what do the differences matter?
It's not one of the "enhanced" amps is all. Their amps have been supposedly 2 ohm stable for a while, it's their main design, it's not an option.
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post #5749 of 5751 Old Today, 02:20 PM
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Lab Gruppen FP14000 clone amplifiers

Hey guys. Read some of the thread, however it's pretty long. How is the low freq capability of these below 20hz? I'm looking at picking up a 14000 for a sealed build but need capable power from 10-20hz. I'm also looking at another for a high performance LCR bi amp build I'm doing which requires 3200 watts (clean RMS) per LR cab (1600 for center channel I have) for the low end (400-42Hz). Looking at the 14000 or 10000Q for that. My subs will do mainly <42Hz and way on down. LRs will do 42 and up LFE and LCR content mixed. The LRs will be little monsters.

Does anyone have the specs on THD performance at 4 ohms and then at 2 ohms per channel both channels driven 20-20 (or at 1khz)? I'm assuming the one THD spec given is at 8ohms per channel.

Noise isn't a factor for me. My amp rack is in a closet, adequate cooling is more my goal in there.

Thanks much. Appreciate the info. I'll continue to read backwards in the thread as I have time. Maybe some more this evening. Have a great holiday weekend all.




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post #5750 of 5751 Old Today, 02:48 PM - Thread Starter
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Originally Posted by M88@FL450 View Post
Hey guys. Read some of the thread, however it's pretty long. How is the low freq capability of these below 20hz? I'm looking at picking up a 14000 for a sealed build but need capable power from 10-20hz. I'm also looking at another for a high performance LCR bi amp build I'm doing which requires 3200 watts (clean RMS) per LR cab (1600 for center channel I have) for the low end (400-42Hz). Looking at the 14000 or 10000Q for that. My subs will do mainly <42Hz and way on down. LRs will do 42 and up LFE and LCR content mixed. The LRs will be little monsters.

Does anyone have the specs on THD performance at 4 ohms and then at 2 ohms per channel both channels driven 20-20 (or at 1khz)? I'm assuming the one THD spec given is at 8ohms per channel.

Noise isn't a factor for me. My amp rack is in a closet, adequate cooling is more my goal in there.

Thanks much. Appreciate the info. I'll continue to read backwards in the thread as I have time. Maybe some more this evening. Have a great holiday weekend all.
They're good in that range. The output is clean. THD is low, mostly dominated by the noise floor until higher levels. It's far less than anything your sub is going to be putting out.
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post #5751 of 5751 Old Today, 02:51 PM
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They're good in that range. The output is clean. THD is low, mostly dominated by the noise floor until higher levels. It's far less than anything your sub is going to be putting out.


Thx man.


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