DIY: Amplifiers / power amplifier modules

PA amplifier module AKB-160

PA amplifier module, with 100 V output.

1 x 40 WRMS
Silent operation due to fanless cooling concept
Balanced line input (XLR) and unbalanced line input (RCA)
Speaker output via spring-loaded speaker terminals
Volume control
Metal housing with mounting brackets

Specifications:

Output power: 40 W_RMS, 60 W_MAX
Mic input: -
Aux input: 390 mV/26 kΩ, bal. 420 mV/11 kΩ, unbal.
Phono input: -
Speaker output: 100 V
Frequency range: 17-20,000 Hz, -3 dB
Equalizer bass: -
Equalizer midrange: -
Equalizer treble: -
S/N ratio:>80 dB
THD:<1 %
Power supply: 230 V /50 Hz/75 VA
Admiss. ambient temp.: 0-40 °C
Dimensions: 213x55x238 mm
Weight: 3.2 kg
Special feature: -
Microphone: -
Aux, phono: 1 x XLR (line) 1 x RCA L/R (line)

Price per unit (Order No. mo-174260) - not available

Digital hi-fi power amplifier module IPA-25D

Digital hi-fi power amplifier module, mono version.

Operating voltage: 12-24 V
Class D concept
Very high efficiency (> 90 %)
Compact design due to concept without heat sink
Short-circuit proof
Thermal overload protection
Shutdown input for a very low standby current (< 0.25 mA)

Specifications:

RMS output power: 25 W_RMS/4 Ω/24 V 30 W_RMS/8 Ω/24 V; 15 W_RMS/4 Ω/12 V 8 W_RMS/8 Ω/12 V
Music output power: 45 W_MAX/4 Ω/24 V 45 W_MAX/8 Ω/24 V; 25 W_MAX/4 Ω/12 V 12 W_MAX/8 Ω/12 V
THD:<0.2 %/1 W
Output impedance: 4-8 Ω
Frequency range: 10-20,000 Hz
Input impedance: 12 kΩ
Input voltage: 140 mV
S/N ratio:>100 dB, A-weighted
Standby current: 14 mA
Power supply: 12-24 V DC current /2.5 A
Req. panel cutout: -
Dimensions: 65x13x40 mm
Weight: 25 g
Inputs: screw terminals
Outputs: screw terminals
Integrated limiter: -
Level control: -
2-way tone control: -
Mains switch: -

Price per unit (Order No. mo-030790) - not available

Low-noise microphone preamplifier module MPA-1

Low-noise microphone preamplifier module

Adjustable gain
Operating voltage: 12-40 V DC current
Frequency range: 20-15,000 Hz, -0.5 dB, 15-20,000 Hz, -3 dB
Input sensitivity: 2 mV
Input impedance: 200 Ω-10 kΩ
Output voltage: max. 7 V/1 kΩ
Gain: 52 dB
THD:<0.05 %
Noise voltage: 0.5 µV
Dimensions w/o shaft: 40x25x60 mm
Weight: 30 g

Price per unit (Order No. mo-320550) - not available

Active speaker module with DSP technology, 200 W_MAX, 120 W_RMS AKB-210DSP

DIY: Amplifiers / power amplifier modules, Active speaker module with DSP technology, 200 W<sub>MAX</sub>, 120 W<sub>RMS</sub> AKB-210DSP — Enlarge

Active speaker module with DSP technology, 200 WMAX, 120 WRMS, for versatile applications.

2-channel active module (class D)
2 x 60 WRMS/4 Ω
3-channel DSP
S/PDIF input and output
Audio in possible via USB interface
Line output for subwoofer amplifier (third DSP channel)
Link input and output for synchronising two AKB-210DSP modules
External mini keypad with buttons for on/off and volume, connection via 50 cm flat cable
Touch panel AKB-210TP as an alternative to the keypad is available at option
Integrated infrared receiver for optional infrared remote control AKB-210RC
Supplied with software (Windows* XP, Vista/7/8)
Parameters to be controlled via software: Biquad filter functions (bell, notch, all-pass, low-shelf, high-shelf, band-pass, high-pass, low-pass), delay, limiter, gain of the inputs, master volume, low cut
Short-circuit proof
Overtemperature protection
Bridged mode adjustable via software
Supplied with mains cable, USB cable, link cable (3.5 mm jack), mini keypad

Examples of application:

with one AKB-210DSPStereo system with passive filters
2-way active system for controlling the bass speaker and tweeter of a speaker system
Bridged mode for operating a subwoofer or individual speaker with a higher power capability
with two AKB-210DSP2-way stereo system with active filters
2-channel system with active subwoofer
2-channel system with bridged power amplifiers for a higher power capability
additional third DSP channel

With the third line output to be programmed by DSP, the range of applications can considerably be extended. Actively controlled 3-way speakers, fully active subwoofer/satellite systems and a variety of most versatile speaker concepts can be configured and realised by controlling additional power amplifiers.

Specifications:

RMS output power: 2 x 60 W_RMS/4 Ω ; 2 x 45 W_RMS/8 Ω
Music output power: 200 W_MAX /4 Ω ; 140 W_MAX/8 Ω
THD:<0.05 %
Output impedance: 4-8 Ω
Frequency range: 20-20,000 Hz
Input impedance: 10 kΩ
Input voltage: 2.2 V
S/N ratio:>100 dB
Standby current: -
Power supply: 230 V /50 Hz/230 VA
Req. panel cutout: 310x120 mm
Dimensions: 115x60x200 mm
Weight: 1.5 kg
Inputs: 2 x line input (L/R, unbal.), 1 x S/PDIF, 1 x mini USB interface for programming by DSP and audio in, 1 x trigger, 3.5 mm jack (input/output), 1 x mains input jack
Outputs: 1 x sub output (line, unbal.), 1 x S/PDIF, 4 x clamp terminals for 4 Ω to 8 Ω speaker (rear panel), 1 x speaker output via 2 banana jacks (front panel)
Integrated limiter: via DSP
Level control: via DSP
2-way tone control: via DSP
Mains switch: X

Price per unit (Order No. mo-320220) - not available

Active speaker module with DSP technology, 400 WRMS, AKB-400DSP

DSP-controlled digital amplifier technology, for speaker building concepts. Speaker systems with digital signal processors (DSP) allow completely new possibilities. With the active speaker module AKB-400DSP, this technology is now applied in speaker building concepts. It is both suitable for 2-way speakers and for the application in an active subwoofer. The programming is carried out via a user-friendly software. For this purpose, the computer is connected to the module via a USB cable. A total of 400 WRMS at 4 Ω can be provided as desired, e.g. 400 WRMS for subwoofer operation, 2 x 200 WRMS for 2-way speakers or 350 WRMS for a bass speaker and 50 WRMS for a tweeter.

Active speaker module with DSP technology, 400 WRMS

2-channel active module (class D)
400 WRMS/4 Ω
2-channel DSP
4 presets can be programmed and stored
Supplied with software (Windows* XP, Vista/7/8)
Parameters to be controlled via software: Biquad filter functions (bell, notch, all-pass, low-shelf, high-shelf, band-pass, high-pass, low-pass), delay, limiter, gain of the inputs, master volume, low cut
Short-circuit proof
Overtemperature protection
Supplied without mains cable, matching mains cable AAC-115P is available at option

Specifications:

RMS output power: 400 W_RMS/4 Ω ; 180 W_RMS/8 Ω
Music output power: 600 W_MAX /4 Ω; 250 W_MAX/8 Ω
THD:<0.004 %
Output impedance: 4-8 Ω
Frequency range: 10-30,000 Hz
Input impedance: 25 kΩ bal.
Input voltage: 2.5 V
S/N ratio:>100 dB
Standby current: -
Power supply: 230 V /50 Hz/600 VA
Req. panel cutout: 310x120 mm
Dimensions: 142x55x330 mm
Weight: 1.1 kg
Inputs: 1 x line input (XLR, bal.), 1 x POWERCON, USB interface for DSP programming
Outputs: 1 x line output (XLR, bal.), 2 x 4-8 Ω speaker, 1 x POWERCON
Integrated limiter: via DSP
Level control: via DSP
2-way tone control: via DSP
Mains switch: X

Price per unit (Order No. mo-320010) - not available

Active Subwoofer Modules for the Digital Age SAM-200D

Active Subwoofer Modules for the Digital Age Due to state-of-the-art technology in the digital D class, the digital active subwoofer modules from IMG Stage Line provide a powerful bass reproduction in self-built subwoofer systems. The components feature a high power efficiency and provide an energy-saving operation. The lightweight design of these models which are available at an attractive price ensures a low total weight of the speaker system.

Class D active subwoofer module, 280 WMAX, 200 WRMS at 4 Ω

High-performance active module in class D technology
Variable low-pass filter: 40-200 Hz (18 dB)
Continuously adjustable phase control 0-180° for perfectly matching it to the main speakers
Line input, par. line output
Integrated bass boost of approx. 3 dB at 40 Hz
High power reserves

Specifications:

Output power rms 4 Ω: 200 W_RMS
Output power rms 8 Ω: 100 W_RMS
Music output power 4 Ω: 280 W_MAX
Music output power 8 Ω: 150 W_MAX
THD at rms power:<0.1 %
Frequency range, full range: -
Frequency range, satellite: -
Frequency range, subwoofer: 20 Hz - (var. 40-200 Hz)
Sub-boost: +3 dB at 40 Hz
Output impedance: 4-8 Ω
Input impedance: 20 kΩ
Max. input voltage:
Line in: 7 V max.
High power in: -
Max. power of high level input 4Ω: -
Max. power of high-level input 8 Ω: -
S/N ratio:>70 dB
Power consumption, no load: 24 VA
Power consumption, stand-by:>0.5 W
Stand-by activation time: -
Power supply: 230 V /50 Hz/330 VA
Required mounting cutout: 185x160 mm
Mounting depth w/o front panel: 60 mm
Dimensions: 178x204x80 mm
Weight: 1.4 kg
Line in: 1 x RCA
High power in: -
Line out: 1 x RCA
Volume control: X
Freq. cutoff control: X
Phase control: X
Automatic switch-on: X
Mains switch: X

Price per unit (Order No. mo-320780) EUR 249,00 excl. VAT: € 209.24 / $ 242.72

DIY: Amplifiers / power amplifier modules

PA amplifier module AKB-160

Digital hi-fi power amplifier module IPA-25D

Low-noise microphone preamplifier module MPA-1

Active speaker module with DSP technology, 200 WMAX, 120 WRMS AKB-210DSP

Active speaker module with DSP technology, 400 WRMS, AKB-400DSP

Active Subwoofer Modules for the Digital Age SAM-200D

Active speaker module with DSP technology, 200 W_MAX, 120 W_RMS AKB-210DSP