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Old 2nd March 2013, 05:34 PM   #2491
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Default Again, thank you mile
Just finish build another 3 B500 amp. So amazing, i don't have any difficulties to finish this amp. Again thank you so much for sharing your knowledge.

Warm regards from bekasi indonesia

Gassanov fuad.
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Old 3rd March 2013, 09:10 AM   #2492
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Default 2 x B500 (BTL) for sub wover
Hi sir mile....can i use 2 B 500 (bridge mode) to drive 8 ohm 18inch subwoover?
How much safety vcc for this amp, 55vac (76.5 VDC) is enough for BTL mode?
I need 1000 watt 4ohm amp to drive this sub. Thx in advance

Warm regars

Gassanov fuad

Bekasi indonesia
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Old 3rd March 2013, 09:58 AM   #2493
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Quote:
Originally Posted by Gassanov View Post
Hi sir mile....can i use 2 B 500 (bridge mode) to drive 8 ohm 18inch subwoover?
How much safety vcc for this amp, 55vac (76.5 VDC) is enough for BTL mode?
I need 1000 watt 4ohm amp to drive this sub. Thx in advance

Warm regars

Gassanov fuad

Bekasi indonesia
B500 in bridge mode can work only with 8 ohm load, for 4 ohm you must use 8 pairs of outputs instead 4 pairs per channel.
Regards
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Old 3rd March 2013, 10:04 AM   #2494
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Quote:
Originally Posted by apexaudio View Post
B500 in bridge mode can work only with 8 ohm load, for 4 ohm you must use 8 pairs of outputs instead 4 pairs per channel.
Regards
Wow thx for super fast respons. What i mean is, i use 2 b500 in bridgemode to drive single 18inch 8ohm subwoofer (not 4 ohm subwoofer).

So my calculation is. B500 work in 500watt 4ohm in btl mode so dual b500 will give me 1000 for 8 ohm. Correct me if i,m wrong.

Thx
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Old 3rd March 2013, 10:23 AM   #2495
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Quote:
Originally Posted by Gassanov View Post
Wow thx for super fast respons. What i mean is, i use 2 b500 in bridgemode to drive single 18inch 8ohm subwoofer (not 4 ohm subwoofer).

So my calculation is. B500 work in 500watt 4ohm in btl mode so dual b500 will give me 1000 for 8 ohm. Correct me if i,m wrong.

Thx
Yes but in reality you will get about 900W at 8 ohm.
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Old 3rd March 2013, 12:09 PM   #2496
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Quote:
Originally Posted by apexaudio View Post
Yes but in reality you will get about 900W at 8 ohm.
Ok thx alot sir.... Thats enough for me.

Again thankyou soooooo much

Regard
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Old 4th March 2013, 02:52 AM   #2497
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Location: pasuruan
Quote:
Originally Posted by marjuni View Post
Hi ahmadfay can you share layot & skema
regard
i used this one
Click the image to open in full size.
salam kenal...
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Old 4th March 2013, 02:54 AM   #2498
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and this is from apex audio
Click the image to open in full size.
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Old 8th March 2013, 06:42 AM   #2499
nugroho is offline nugroho  Indonesia
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Quote:
Originally Posted by ahmadfay View Post
i used this one
Click the image to open in full size.
salam kenal...
hai ahmadfay can you share pdf file of pcb design
salam kenal
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Old 8th March 2013, 03:59 PM   #2500
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Quote:
Originally Posted by wiljj78 View Post
My new APEX B500 in Horizontal position (tested and working) with APEX protect using NE555 IC in progress.

Many thanks to APEX....
hy,can you tell me skematic of protector with NE555

regards
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