| Content | High-Tech in Professional Amplification!
The fP 3400 is a lightweight and space-saving power amplifier, ideal for use in
high quality touring sound systems as well as in demanding permanent installations.
Heat and cooling are fundamental problems in many extreme high power amplifiers
similar to the fP 3400.
In 1990, Lab.gruppen patented a high efficiency amplifier called fP 3400. This
development was an evolutionary step past the Class D amplifier. Lab.gruppen call
this unique step forward: Class TD. This stands for: Tracking Class D.
Class TD obtains the same high efficiency as Class D, while avoiding the main
drawbacks. Class D has a power-amplifier topology using Pulse Width Modulation
(PWM) to achieve high efficiency, but it needs a recovery filter between the output
stage and the loudspeaker.
Lab.gruppen?s Class TD amplifiers do not need this filter and this is one reason why
the Lab.gruppen Class TD obtains the same sonic quality as a traditional Class AB
amplifier.
Key Features
2 x 1100 watts @ 8 ?
2 x 1500 watts @ 4 ?
2 x 1700 watts @ 2 ?
(Measured just below clip level, with both channels driven)
Light weight and compact: only 10 kg (22 lbs), 2U high
MLS? Switch: Lab.gruppen?s unique power matching for different loads
Class TD design in flagship models (fP 6400 and fP 3400)
NEW FEATURES:
Replaces the LAB 2002
Multiple positions gain switch
Intercooler? cooling system with front-to-rear airflow and easily
accessible dust filters
Improved low-end power bandwidth
Link connector with XLR-type connector
Extruded front panel for increased stability
Bridged mono outputs in one SpeakOn connector
Besides the traditionally superb Lab.gruppen sonic performance, fP3400 offers a full line
of important features:
Regulated switch mode power supply Today
There are many lightweight, switch-mode amplifiers in the market. However, the unique
Lab.gruppen switch-mode power supply technology offers a number of essential advantages
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 r
egulated 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 instead of 230 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.
Multiple positions Gain switch
To meet the demands for a flexible gain structure in the system, Lab.gruppen offers a multiple
position gain switch. The maximum amplifier gain can be set to all industry standards: 20, 23,
26, 29, 32, 35, 38 and 41 dB.
Sophisticated protection circuitry, combining:
DC protection; protects against infrasonic signals.
VHF protection; protects the loudspeakers against strong very high frequency non-musical
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. |
XR Series - Intelligent Power
New Horizons.
A lightweight with enormous power output. Combined with digital signal processing.
That's what we call flexibility! Locally controlled or completely networked.
No matter what the requirements are.
The integrated powerful digital signal processor (DSP) and controller allows
for a troublefree and easy adjustment to any acoustical environment.
Wear-free digital potentiometers, sequential remote power on,
alive contacts for easy supervision, computer controlled monitoring -
its enless list of useful feature make it the right choice for any installation.
XR - the new definition of Intelligent Power
High Tech SMT Design
Digital Signal Processor
Excellent sound and superior impulse response
Protection Circuits: DC, LF, HF, Thermal, Short Circuit, Current Limiter, 3 ms Muting Delay
PHOENIX / Speakon
High-End Switched Power Supply with Power Factor Correction (not XR4000)
LED Indicators for SIGNAL, CLIP, PROTECT, POWER
Temperature controlled, variable speed low noise fans
Digital wear-free Volume Controls (can be operated manually)
Stereo / Bridged / Parallel Mode
Softstart
Sequential Remote Power On
Alive Contact
Paging Input
Monitor Output
SXL Dataport
Perfect Weight-to-Power ratio
3 Years Warranty
Technical Data:
XR 2500: 2x 1600 W @ 2 Ohm
2x 1250 W @ 4 Ohm
Class: H
Frequency Response:20 Hz - 20 kHz (0 / -0.3 dB)
THD: < 0.02%
Signal-to-Noise Ratio: < -106 dB
Channel Seperation: > 85 dB
Input Sensitivity: +6 dBu
Input Clipping: 22 dBu
Input Impedance: 20 kOhm
Damping Factor: 750 to 1200 @ 4 Ohm
Cooling: 4 Fans (temp. reg. variable speed)
Weight: 9 kg
Dimensions: 2 RU / 483 x 88 x 454 mm(19" x 3.5" x 17.9“) |
The new flagship of the LX series delivers a mighty 2 x 2100 watts into 2 ohms and 2 x 1500 watts into 4 ohms and therefore has plenty of headroom for large subwoofer arrays. For decades, DYNACORD has been one of the leading manufacturers in the pro audio sector and has established a secure position in the amplifier market thanks to the excellent audio performance,absolute reliability and high stability of the Linear Precision series. With their outstanding operational security, which guarantees years of problem-free use, the amplifiers of the Linear Precision series are now the standard for a wide variety of full-range and multi-way loudspeakers systems in professional venues as diverse as theatres, stadiums, discotheques, clubs and concert halls. Datasheets / ManualsManual (2.2MB)
Load Impedance 2 O, 4 O, 8 O Max. Midband Output Power, THD = 1%, 1kHz 2 O - 2100 W, 4 O - 1500 W, 8 O - 900 W Rated Output Power, THD 300 Slew Rate 38 V/µs Signal to Noise Ratio, A-weighted 108 dB Output Stage Topology Class H Power Requirements 100V, 120V, 220V, 230V, 240 V; 50Hz … 60Hz (factory configured) Power Consumption, 1/8 max. output power @ 4 ohms 1070 W Protection Audio Limiters, High Temperature, DC, HF, Back-EMF, Peak current Limiters Inrush Current Limiters, Turn-On delay Cooling Front-to rear, 3-stage fans Ambient Temperature Limits +5° … +40° ( 40°F … 105°F ) Safety Class I Dimensions ( W x H x D ) mm 483 x 88.1 x 384 Weight 8.70 kg (19.2 lbs) Optional Accessories Rear Rackmount 15.5" D112 930 (RMS15-CL), Rear Rackmount 18.0" D112 933 (RMS18-CL), LPN + Lo-Cut Filter D112963 (NRS 90268)
| Crown XTi 4002 Features at a Glance:
* Stereo Wattage: 1600W @ 2 ohms, 1200W @ 4 ohms, 650W @ 8 ohms
* Bridged Mono Wattage: 2400W @ 8 ohms, 3200W @ 4 ohms
* Peak Plus Limiters provide the ultimate in system performance and protection by allowing full control over threshold, attack, and release
* Enhanced Subharmonic Synth section provides user control over frequency, gain and filter type for system-specific tuning
* 3 User-defined fan mode controls - normal, early and fullspeed - for matching fan performance to a specific application
* New system monitoring provides software visibility of AC line voltage and power supply temperature
* Integrated cast-aluminum handles for easy handling and enhanced durability
* Locking power cord clip provides a secure connection between the amplifier and power cord
* Updated HiQnet Band Manager and System Architect control software
* Increased number of presets to a total of 30; 29 of which are user definable |
Crown DSi 4000 2x1200W-4Ω Power Amplifier
The Crown? DSi 4000 power amplifi er shall be a solid-state two-channel model
with a switch-mode universal power supply. A rear-panel HD-15 connector shall
provide input/output connectivity between the DSi amplifi er and the DSi-8M
System Monitor.
The outputs shall be usable as stereo or bridged-mono modes of operation.
The bridged-mono mode shall bridge the outputs to provide increased output
voltage.
Front panel controls and indicators shall include the following:
Level: Detented rotary level control, one per channel.
Power Switch: On/off switch applies AC power to the amplifi er.
Sel/Prev/Next Buttons: Three buttons near the LCD screen shall be used to
access menu items and front panel lockout.
LCD Screen: Backlit liquid crystal display shows speaker presets and signal
processing.
Signal Indicator: Green LED, one per channel, illuminates when a very low-level
signal is present at input.
?10 Indicator: Green LED fl ashes when output signal exceeds ?10 dB below
clip.
?20 Indicator: Green LED fl ashes when output signal level exceeds ?20 dB
below clip.
Ready Indicator: Green LED, one per channel, illuminates when the amplifi er is
ready to produce audio.
Clip Indicator: Red LED, one per channel, turns on at the threshold of audible
distortion.
Temp Indicator: Red LED, one per channel, illuminates under excessive temperature
conditions.
Power Indicator: Blue LED illuminates when the amplifi er has been turned on
and has power.
Rear panel controls and connectors shall include the following:
AC Line Connector: NEMA 5-15P (15A).
Input Connector: Two 3-pin removable Phoenix-type connectors each accept a
balanced line-level input signal.
Output Connectors: 4-position barrier strip with connectors for dual louspeakers
or bridge-mono loudspeaker.
HiQnet USB Connector: Type B, connects to a HiQnet network.
HD-15 Connector: For cinema I/O compatibility with DSi-8M System Monitor.
The amplifi er shall have the following specifi cations:
Output Power: 2 ohm Stereo (per channel): 1,600W with 1% THD, 4 ohm
Stereo (per channel): 1,200W with 0.5% THD, 8 ohm Stereo (per channel):
650W with 0.5% THD, 4 ohm Bridge-Mono: 3,200W with 1% THD, 8 ohm
Bridge-Mono: 2,400W with 0.5% THD.
Voltage Gain at 1kHz, 8 ohm rated output: 26 dB.
Frequency Response: +0/?1 dB from 20 Hz to 20 kHz at 1 watt into 4 ohms.
Load Impedance: Safe with all types of loads. Rated for 2 to 8 ohms in Stereo
mode, 4 to 16 ohms in Bridge-Mono mode.
Sensitivity at 8 ohm rated output: 3.61V.
Sensitivity at 4 ohm rated output: 3.47V.
Sensitivity at 2 ohm rated output: 2.84V.
Signal to Noise Ratio (below rated 8-ohm power at 1 kHz): 105 dB
(A weighted).
Damping Factor: Better than 500 from 20 Hz to 500 Hz.
Crosstalk: > 70 dB below rated power, 20 Hz to 1 kHz.
Input Stage: Input is electronically balanced and employs precision 1% resistors.
Input Impedance (nominal): 20 k ohms, balanced;10 k ohms, unbalanced.
Maximum Input Signal: +22 dBu typical.
AC Line Voltage and Frequency Confi gurations Available: 100V, 120V, 220-240V,
50/60 Hz.
AC Line Current: 8.0A.
At Idle: Draws no more than 90 watts.
Operating Temperature: 0° C to 40° C at 95% relative humidity (non-condensing).
The DSP section shall have the following specifi cations:
Input EQ: 6 parametric fi lters per channel with adjustable Q, ±15 dB boost/cut.
Also adjustable high and low shelving fi lters. This 8-fi lter EQ section can be
bypassed.
Crossover Filters: Highpass and lowpass per channel. Butterworth 6/12/18/24
dB per octave, Linkwitz-Riley 24/48 dB per octave. Also includes ±15 dB bandpass
gain and polarity control.
Output EQ: 8 parametric fi lters per channel with adjustable Q, ±15 dB boost/cut.
This 8-fi lter EQ section can NOT be bypassed. Filters are enabled individually.
Output Limiter: Prevents clipping and protects loudspeakers. Choice of ?3, ?6,
or ?12 dB threshold per channel.
Delay: Up to 50 msec total delay per channel.
Presets: 20 presets. One is ?DSP OFF.? Fifteen are factory-set for JBL Cinema
systems. Four are user-defi nable.
Protection shall include the following:
DSi-Series amplifi ers shall be protected against shorted, open or mismatched
loads; overloaded power supplies; excessive temperature; chain destruction
phenomena; excessive output current, and input overload damage. They also
protect loudspeakers from input/output DC, large or dangerous DC offsets and
turn-on/turn-off transients
The chassis shall be steel. Cooling shall be by a proportional speed fan with
front-to-rear airflow.
Dimensions shall be EIA Standard 19-in. rack mount width (EIA RS-310-B), 3.5
in. (8.9 cm) high and 12.25 in. (31.11 cm) deep behind mounting surface.
Net weight shall be 19 lb (8.6 kg). Shipping weight shall be 22 lb (10.0 kg)
The amplifier shall be designated the Crown DSi 4000.
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RMXa Series: Professional quality performance, incorporating road-proven QSC designs
- Compact size — up to 2500 watts in two rack spaces, or 5000 watts in three rack spaces
- High-current toroidal transformers, for greater 2-ohm power and low noise
- Independent user-defeatable clip limiters reduce distortion
- Selectable low-frequency filters (30 Hz or 50 Hz) protect speakers and increase headroom
- The 4000-watt RMX4050a operates on a standard 15 amp plug (120V)
- Both the RMX4050a and the RMX5050a feature a dual mono, high-current power supply for increased reliability and performance
- The RMX4050a's particularly exceptional combination of cooling capacity and electrical efficiency provides robust thermal performance suitable for high continuous power in 2-ohm stereo or 4-ohm bridged applications.
- Balanced 1/4” (6.3 mm) TRS, XLR, and barrier strip inputs
- Touch-proof binding post and Neutrik Speakon® outputs
- Front mounted gain controls for easy access
- Signal and clip LED indicators for monitoring performance
- Independent DC and thermal overload protection on each channel automatically protects amplifier and speakers
- 3-year warranty plus optional 3-year extended service contract
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