| Content | REVAMP4120T is a professional 4-channel digital power amplifier with 4 x 120 watts output power @ 100 volt (or @ 4 ohms), but the unit is also bridgeable to 2 x 240 watts @ 100 volt (or @ 4 ohms). The unit incorporates a high efficient SMPS power supply, outputs with efficient Class D output topology and output transformers.
REVAMP4120T is the ideal amplifier for applications with 4 zones in mono, 2 zones in stereo or even bridged dual mono or bridged stereo systems. This amplifier contains an intelligent variable speed cooling fan that only will be activated in case of emergency. In order to match each input to its respective source the input sensitivity can be adapted to your needs. The input stage also features a build-in 250 Hz HP-filter to optimise the system for use on horn speakers whenever you would need this. Each pair of outputs can be bridged to give you 2 x 240 watts of output power!
The very intuitive front display shows what is going on with one blink of an eye. The output power is constantly under control thanks to our own made limiter that prevents annoying pumping limiter sound but yet keeps the system fully under control and you still have that dynamic sound. Ease of use, high-tech, reliability and a wide versatility has never been as cleverly combined as in this REVAMP4120T amplifier. | The MA125 is a very compact, professional PA mixing amplifier for commercial and industrial applications. The MA125 can drive 8 Ohm or constant voltage loudspeakers. The MA125 has 4 microphone inputs with integrated speech filters, 4 selectable line inputs and one emergency line / telephone input. MIC input 1 is meant to be the main microphone paging input. Its signal can be fed via the front jack or via the XLR3, DIN5 or Euroblock connector at the back. When needed, two APart paging microphones (MIC-PAT-D) can be wired in parallel on each microphone input.
The MA125 has a 3-level priority system. The emergency line / telephone input at the back has the highest priority. MIC1 has the second priority level and the third priority level can be activated by a dry contact at the back of the amplifier. This dry contact mutes all background music inputs. It also activates the integrated chime. The level of the chime can be adjusted at the back of the amplifier. Activation of the dry contact, releases a 24V output power? this can be used to switch the relays of loudspeaker attenuators or other devices. When needed the signals mixed via your MA125 mixing amplifier can be recorded or distributed via the record output. Further the MA125 is supplied with detachable 19” brackets.
The MA125 is the device to built professional industrial applications. You can insert an extra EQ (such as the APart PXQ2215) into the signal path or add extra power amps (e.g. PA240P), using the pre-amp out / power amp in RCA connectors. |
![]() *8 Input 6BUS 21Out Channel Video Matrix Switch *Select 8 Videos Input/6BUS Video Input *Select 8 Channel Video Input/6BUS Video Input *6BUS Video Links Output *21 Zone Videos Output *RS-422C Post: Select C-500 BUS Output *RS-232C Post: Select Z-500 Video Output *Power Source: DC 24V *Weight: 3kg/6.6Ib *Dimensions(W×H×D): 482×88×380mm/19×3.5×15in
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![]() *6 Input 21 Output Matrix *Allocate BGM Source to Desired Output Zone *Clear LED/LCD Visual Display Shows Status of Each Area/Zone *Interface for Remote Zone Controllers L-500(21 Zones) *Interface for Remote Paging Microphones RM-500(4 No.) *Adoption of RS-422/RS-232 Communication Method Supporting Long Distance *Conveient Connection with 7-Ch Power AMP with Adoption of Lump-sum Output terminal *Power Source: DC 24V *Weight: 4.3kg/9.5Ib *Dimensions(W×H×D): 482×132×380mm/19×5.2×15in
| LDMS828 - 19" Line Mixer 8 in 2 and Splitter 2 in 8
The LD Systems LDMS828 is a mixer, splitter, and booster amplifier in 19” rack format for flexible live and studio applications.
The LDMS828 has one stereo and six mono channels with individual LED level metres; all inputs and outputs are electronically balanced. Two mono channels are equipped with stereo TRS sockets, the other connectors are XLR sockets. The stereo channel has individual volume controls for input and output and a link button for looping through the signal; each mono channel has volume and panorama controls as well as a button that toggles between the splitter and mixer functions.
TheLDMS828 by LD Systems is impressive not only because of its practical features, but also because of its technical specifications. The broad frequency response of 5 - 40,000 Hz, a dynamic range of 85 dB, and the extremely low total harmonic distortion of 0.0008% guarantee maximum signal fidelity. The nominal working level of -10 dBV to +4 dBU makes the mixer/splitter suitable for connection to both professional and consumer equipment.
Mono input channels, line
6
Mono line input connectors
2 x 6.3 mm TS
Mono line input type
Electronically balanced
Stereo Line Input Channels
1
Stereo Line Input Connectors
2 x XLR
Stereo Line Input Type
Electronically balanced
Input impedance
(balanced) 50000 Ohm(s), (unbalanced) 25000 Ohm(s)
Max. input level
+ 21 dBu
Nominal working level
-10 dBV - +4 dBu
Mono output connectors
2 x 6.3 mm TS
Mono output type
Electronically balanced
Stereo output connectors
1 x XLR
Stereo output type
Electronically balanced
Output impedance
(balanced) 60 Ohm(s), (unbalanced) 30 Ohm(s)
Max. output level
+22 dBu
Frequency response
5 - 40000 Hz
Controls
Level Channel 1-6, Main Input Level, Main Link, Main Output Level, Power, Splitter/Mixer Channel 1-6
Indicators
In/Out Level Channel 1-6 (6 -segment), Input Level LED Indicator (6-segment), Output Level Indicator (6-segment), Power
Operating voltage
220 V AC - 240 V AC, 50-60 Hz
Mains connector
IEC power connector
Accessories (included)
Power cord
| L1400 450W-450W 4ohm (280W-280W8ohm)
COMPACT MODERN DESIGN
Compact size (2U-Rack Height) with up to 1200W per channel@2ohms
these amps save valuable rack space without compromising power output.
HIGH CURRENT TOROIDAL TRANSFORMER
A high-current toroidal transformer saves rack space
and minimizes hum and noise.
EXCELLENT SOUND QUALITY
The low T.H.D.(0.05%) and high damping factor (400 or higher)
gives excellent sound quality.
2 STAGE POWER SUPPLY
The high-power units (L1800 and L2400) have a 2-Stage Class-H design
that maximizes their performance.
EQUIPPED WITH 30Hz or 50Hz HPF
All amplifiers are equipped with high-pass filters on each channel to
help maintain sound quality, yet help protect the loudspeakers.
EXTENSIVE PROTECTION CIRCUITS
Extensive protection circuits monitor over voltage/current conditions, overheating,
output shorts, and DC voltage to improve performance and reliability.
CLIP-LIMITER CIRCUITS
Clip-limiters on each channel are provided to help prevent
distortion due to excessive signal levels.
L.E.D FUNCTION DISPLAYS
Power, Clip limiter, Signal, Protection, Mode (Parallel/Stereo/Bridged)
LEDs on the front panel indicate the status of the unit in operation. |
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