Руководство Пользователя для Lab.gruppen fp 3400

 settings can be different for each channel, and a variety of combinations can be achieved – see 

table 2. Table 2 provides the simplest way to find the best MLS

TM

 settings for your application. There is 

no risk to damage the amplifier since it is very well protected (even down to 0.3 ohms). The fP 3400 
amplifier is a power converter, and by selecting MLS

TM

 positions you are allocating a portion of the 3400 

watts power. 
 

 

 

 

1.  Check if the loudspeaker can take the 

amp’s maximum output power 
(generally, twice the RMS power 
handling should be okay). 

2.  If the loudspeaker can handle the amp’s 

maximum output power, leave MLS at 
its highest position (0dB). 

3.  If the loudspeaker is specified at a 

lower power handling, reduce the 
amp’s output power by changing MLS 
to a matching lower value (-2dB, or      
-4dB, or -5dB). 

4.  Try the setup with a musical signal. If 

the amp runs into thermal protection, or 
into current limiting (audible as 
distortion, or as “clicks” from a cone 
driver/woofer), reduce the amp’s output 
power by changing MLS to a lower 
value. 

 
If you reduce the amp’s output power by choosing 
lower MLS values, you only reduce the maximum 
output voltage. In fact, you will get more current 
headroom for low impedance loads. The amp runs 
at higher efficiency, and the risk for going into 
thermal protection is significantly lower. 

Conventional mode 

1100/8 Conventional mode

 1500/4 

 

 1700/2 

 

 

 

 

High voltage mode 

94Vrms High voltage mode

 1100/8 

 

 520/16 

 

 

 

 

Load matching 

1100/8 Load matching 

 1500/4 

 

 700/8 

 

 

 

 

Power sharing 

1700/2 Power sharing 

 1700/2 

 

 1700/2 

 

 

 

 

Limited power 

1200/2 Limited power 

 1400/2 

 

 750/4 

 

 

 

 

Bi-amp mode 

1700/2 Bi-amp mode 

 1500/4 

 

 1100/8 

 

 1700/4