Техническое Руководство для Lab.gruppen fp 2400q
POWER AMPLIFIER
KEY FEATURES:
4 ✕ 370 watts @ 8
Ω
4 ✕ 380 watts @ 4
Ω
4 ✕ 500 watts @ 2
Ω
(Measured just below clip level,
with all 4 channels driven)
with all 4 channels driven)
◆ Compact design, 2U high
◆ Low weight, 8 kg (18 lbs)
◆ MLS™ Switch: Lab.gruppen’s
unique power matching for
different loads
different loads
NEW FEATURES:
◆ Easily accessible dust filters
◆ Improved low-end power
bandwidth
◆ Extruded front panel for
increased stability
The fP 2400Q is a lightweight and space-saving power amplifier, ideal for use in high
quality touring sound systems as well as in demanding permanent installations.
quality touring sound systems as well as in demanding permanent installations.
The fP 2400Q offers a choice of applications, such as in multi-channel monitor systems,
four-channel reproduction and compact amplification in active 2-, 3-, and 4-way systems.
The fP 2400Q gives the possibility to bridge connect one or two of the two pairs of channels
(channel A and B and/or channel C and D).
four-channel reproduction and compact amplification in active 2-, 3-, and 4-way systems.
The fP 2400Q gives the possibility to bridge connect one or two of the two pairs of channels
(channel A and B and/or channel C and D).
It also features Lab.gruppen’s unique power matching solution, the MLS switch, which
offers endless combinations for solving most of the problems related to different impedances
and maximum power capacities of loudspeakers.
and maximum power capacities of loudspeakers.
The latest semiconductor technology is utilized in the new ferrite Power (fP) amplifiers.
This, together with Lab.gruppen’s proprietary copper cooling system, Intercooler®, enhances
the 2 ohms capability. Two easily accessible dust filters on the front ensure a clean front-to-
rear airflow.
the 2 ohms capability. Two easily accessible dust filters on the front ensure a clean front-to-
rear airflow.
A new Bi-phase wiring scheme also increases the capacity of the switch mode power supp-
ply. This extends the power bandwidth in the low end.
Besides the traditionally superb Lab.gruppen sonic performance, there is a full line of fea-
tures to make the fP family functional in all situations from installation to high performance
live sound systems:
live sound systems:
Regulated switch mode power supply
Today there are many lightweight, switch-mode amplifiers in the market. However, the uni-
que Lab.gruppen switch-mode power supply technology offers a number of essential advan-
tages that make it superior to other and seemingly similar power supply designs. The most
important features are the regulated power supply and the extreme power efficiency. The
regulated power supply easily deals with a very high variation in the AC mains voltage: it can
drop by up to 20% below its nominal level – e.g. to 180 V (90 V) instead of 230 V (115 V) –
without any problem. Perhaps even greater benefits result from the extreme efficiency of
Lab.gruppen amplifiers: only a fraction of the energy from the AC mains is turned into heat.
Today there are many lightweight, switch-mode amplifiers in the market. However, the uni-
que Lab.gruppen switch-mode power supply technology offers a number of essential advan-
tages that make it superior to other and seemingly similar power supply designs. The most
important features are the regulated power supply and the extreme power efficiency. The
regulated power supply easily deals with a very high variation in the AC mains voltage: it can
drop by up to 20% below its nominal level – e.g. to 180 V (90 V) instead of 230 V (115 V) –
without any problem. Perhaps even greater benefits result from the extreme efficiency of
Lab.gruppen amplifiers: only a fraction of the energy from the AC mains is turned into heat.
A regulated power supply also presents some other sonic advantages, such as better cone
control and the same fast response as a conventional power supply.
Sophisticated protection circuitry, combining:
– ALS™ short circuit protection; the Adaptive Limiting System permits very high peak
currents, but keeps the amplifier within the Safe Operation Area.
– DC protection; protects against infrasonic signals.
– VHF protection; protects the loudspeakers against strong very high frequency non-musi-
cal signals above the audible range.
– Thermal protection; prevents the amplifier from being overheated. The protection indicators
on the front panel are switched on, as a warning, before the protection process is initiated.
– AC protection; shuts down the power supply if the line voltage is outside the operating
voltage.
– Clip limiter; prevents severely clipped waveforms from reaching the loudspeakers, whilst
maintaining full peak power.
– ALS™ short circuit protection; the Adaptive Limiting System permits very high peak
currents, but keeps the amplifier within the Safe Operation Area.
– DC protection; protects against infrasonic signals.
– VHF protection; protects the loudspeakers against strong very high frequency non-musi-
cal signals above the audible range.
– Thermal protection; prevents the amplifier from being overheated. The protection indicators
on the front panel are switched on, as a warning, before the protection process is initiated.
– AC protection; shuts down the power supply if the line voltage is outside the operating
voltage.
– Clip limiter; prevents severely clipped waveforms from reaching the loudspeakers, whilst
maintaining full peak power.
fP 2400Q