Lab.gruppen ip 2100 Mode D'Emploi

referred to on the label. The warranty will not cover damage caused by connecting to the         
wrong type of AC mains. 
 
If the power plug is not appropriate for your country, it can be cut off and wired to a suitable connector in 
the following way: 
 
 
BLACK or BROWN 

 
Once the AC connector is connected to a suitable AC supply, the amplifier can be started with the power 
switch. When you power up the amplifier it takes a couple of seconds to check its circuits (this is known 
as the "soft start" or "slow start" sequence), the fans then blow at high speed before going into "idle" and 
the two bottom green LED’s come on to show the output circuits are receiving the correct rail voltage. 

National deviation concerning installation of the iP 2100: 

Danish safety regulation only permits 8A main fuse. As the iP 2100 use an internal primary mains fuse 
of 15A, the iP 2100 must be equipped with an industrial mains connector rated for 16A, or as an 
alternative be fixed installed to a 16A circuit. 

There is no ground lift switch or terminal on this amplifier. The signal ground is always floating via a 
resistor to chassis and the grounding system is automatic. If a potential above 0.6V presents itself between 
signal ground and chassis ground, a short circuit is introduced between the two, thereby enabling electrical 
protection. If a unit in the system is faulty, its mains fuse will blow, due to this automatic ground system. 
If however you wish to tie the signal ground to chassis, connect the XLR-connector’s shell lug to pin 1. In 
the interest of safety never disconnect the earth pin on the AC power cord. 
For all units that are CE approved (radio interference), there is an AC mains filter. This filter needs the 
chassis ground for reference, otherwise a current loop is formed via the signal ground. 
Use the balanced input to avoid hum and interference. 

There are three ways to determine the power/current consumption of the amplifier:  
First, the peak current draw at full output power. Under this condition the power will blow the mains 
breaker within 30 seconds, or the amplifier will operate for less than 2 minutes before thermally 
limiting. Therefore it is meaningless to state the input power at full power. The heat power at full power 
will anyway be limited by the protection circuits. There is no audio program material producing steadily 
full output power; it would be only sine wave for test purposes.  
It is more useful to state the current draw in different loads and output power levels. These figures can 
be found on the specification sheet. The current draw is measured in Ampere rms. This figure 
corresponds to the minimum value of the mains fuse needed. 
We recommend you to design the power distribution at least for the current at 1/8 power, and for 1/3 
power for heavy-duty demands like discotheques, etc. 
Second, the maximum expected average current under worst case program material, which is 1/3 of full 
power according to the FTC standard. At this level the music will be in the state of constant clip and is 
therefore the highest power level one can obtain without completely obliterating the program. 
Last, the "regular operating power" as defined by the safety standard IEC 65/ANSI/UL 6500 and used 
by a majority of safety agencies. The regular operating power is measured by using pink noise, and with 
an average output power equal to 1/8 of full power. The one eighth of the total power is as loud as you 
can play music while making some attempt to avoid obvious clipping. It also corresponds to a headroom 
of 9dB, which is very low for regular audio program.