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Behringer PS400 Ultra-Compact Phantom Power Supply
Act as a pre-amp?
Hi,Does this device act as a pre-amp to take the signal from the mic up to line level?
No, this unit will not act as a preamp.Some devices, most often microphones with condenser generating elements, require a small current to operate miniature amplification circuits inside. These devices require some means to power those internal ciruits. In some cases, such devices are equipped with their own power supply, driven by a battery located within the microphone housing. Those that do not have in internal battery-fed supply must use an external power supply. Alternatively, an external power supply can often be used in place of the internal battery supply. The Behringer unit you reference is intended to provide that external power in either application.The phantom- or (simplex-) type method of supplying external power delivers DC to the source device via pins 2 and 3 of a balanced microphone line. While the current is freely delivered to the connector of the source device, it is blocked from the input of the load device (such as a mixer or microphone preamplifier) by a pair of resistors. The current is delivered at a voltage ranging between about 5 and 48 volts.Most (but not all) mixers today are fitted with the capability of delivering phantom power on those inputs equipped with XLR connectors. Units like this Behringer power supply are intended to allow the use of devices requiring external power (or supplanting the internal battery supply of devices so-equipped) with those mixers that do not offer on-board phantom supplies.It does not amplify or alter the sound of the microphone or other input device with which it is associated.
Date published: 0021-06-21
is the mic-in a male or female and is the mic thru male or female
Mic input is female, output is male.
Date published: 2013-02-21
I have 60 cycle hum
I have a 30 foot balanced cable from my Dayton Emm-6 connected to the PS400 and a 5 foot patch cable connected to a Behringer UCA202 USB interface. True Audio's RTA shows a fat 50 dB peak at 60 - 80 hz (US power cycle). How can I get rid of this? I thought balanced mic cables eliminated this type of noise.
Balanced mic cables help shield the signal from distortion. I suspect that you are getting a 60hz hum from a ground loop between multiple power supplies. If you have True Audio software running on your laptop, have you tried removing your power supply and running off the battery?Have you tested the PS400 direct to a mixer?I also couldn't help but notice the PS400 has an XLR and the UCA202 has only RCA. Have you replaced the cables.You will want to keep these connections as short as possible to limit noise and may also want to look into a Groundloop isolator between the PS400 and UCA202.Hope this helps
Date published: 2012-06-03
What gender are the XLR connectors on this unit?Can not see the connectors from the photo
The input connection is female, and the thru (output) connection is male, standard convention for microphone connections.
Date published: 2011-08-24