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Old 26th January 2012, 09:03 PM   #731
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Pin #1 of an XLR connector should be connected directly to the chassis, it should NOT be connect to the audio circuit ground. The audio circuit ground may also be connected to the chassis, but that's another matter. The XLR pin #1 is a shield, it is not a part of the audio circuit.
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Old 1st February 2012, 03:00 PM   #732
Cristi is offline Cristi  Europe
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TA2022SMPS Amplifier : http://connexelectronic.com/product_...roducts_id/140
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Last edited by Cristi; 1st February 2012 at 03:04 PM. Reason: Broken link
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Old 1st February 2012, 03:13 PM   #733
Cristi is offline Cristi  Europe
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Andrew, the BIPS is NOT attenuating the input signal that much, you might be confused by the marking of the resistors, i use the smd codes, easier for those who assembly the boards. the values are as follows:
911 = 910R
912 = 9K1
103 = 10K
561 = 560R

Speedskater: you're right, but this board is the point where the GND must be connected to the chassis, and as in many application, the pin 1 is connected to GND. i've seen in many PA schematics that the pin is connected directly, just in some power amps there is a GND lift switch, which break the direct connection, leaving one resistor and capacitor between the pin 1 and chassis.
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Old 1st February 2012, 05:36 PM   #734
AndrewT is online now AndrewT  Scotland
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Then sort your schematic so that normal Members can read it.
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Old 1st February 2012, 05:44 PM   #735
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Tell me again what this BIPS circuit does? and how does it do it?
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Old 12th February 2012, 04:08 PM   #736
Abelma is offline Abelma  Belgium
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Quote:
Originally Posted by Cristi View Post
I attached the BIPS schematic on the forum in few places, i will do it again here.
what need to consider is R5, R16 which set the overall gain, in this case 1. if other value is needed, can be chosen by the ratio of R5/R3 for left channel and R16/R22+1 for right channel. the op-amps are supplied through the 1W resistors and 12V zenner diodes. the resistors should be chosen to allow BIPS to be supplied with the available voltage, which can be in range of +-12V to +-60V. for +-12V, 33-56R resistors should be used, and for +-60V 2k2-2k7/1W resistors should be used.
Thank you
Not arrived yet mi BIPS, but it should be the next days.
Can we change the Opamp, it is assembled with a socket?
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Old 1st April 2012, 04:00 PM   #737
Cristi is offline Cristi  Europe
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Default CxD400

Cxd400 400W 4R or 220W 8R amplifier module: Connexelectronic
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Old 8th April 2012, 07:49 AM   #738
Cristi is offline Cristi  Europe
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CxD300-8R Connexelectronic
The best performance/price ratio IRS2092 amplifier module on the market.
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Old 10th April 2012, 12:31 PM   #739
labjr is offline labjr  United States
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Hi Christi, I sent PM and email though connex web site. Do you check your messages?
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Old 11th April 2012, 12:16 AM   #740
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Quote:
Originally Posted by Cristi View Post
CxD300-8R Connexelectronic
The best performance/price ratio IRS2092 amplifier module on the market.
Interesting.

Question; your site says "Output power typically 250W on 8R impedance supplied with +-72V".

I calculate only 77% efficiency from that; is that correct?

Also, you have so many IRS2092-based amps now that it's hard to choose.

For the same power, you can spend more or less, so presumably there are reasons for spending more.

What are they?

Thanks
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