DUBHE Series are Hi efficiency 4-channels mid/high power level amplifiers dedicated to the installation market where they can be connected loads in both, low and high impedance, through their input and output Phoenix connectors and output level control potentiometers in the rear panel.

In the design it has been implemented the advanced RAM Audio Power Control Management to configure how to sharing the power between the channels according to the user needs, having the possibility to obtain in just one channel the maximum power.
These amplifiers have many configuration possibilities such as bridge mode, subsonic filter, channel power limiter and signal link, among others, in order to satisfy the needs of any particular installation. These devices also can be equipped with a GPIO connection to interface with a third party control system.
Optional DanteTM and AES67 inputs are available for DUBHE amplifiers.

With all these configurations DUBHE amplifiers can meet the power requirements of any installation from 300 up to 2500 W.

• High efficiency class D topology

• Universal power supply with PFC

• Up to 10000 W in 4 channels

• 8, 4 and 2 Ohm low impedance operation

• 100, 70, 50 and 35 V high impedance modes

• RAM Audio advanced Power Control Management (PCMTM)

• Optional DanteTM and AES67, inputs and GPIO module for third party interface

• Subsonic filter

• Signal link mini-dips configurable

• Output level control in rear panel

• Output mode configuration for high or low impedance with power limitation

• Phoenix connectors for inputs and outputs

• Up-side-down design to avoid fan dust accumulation

• Temperature controlled, front to back cooling fan

• ICL™: Intelligent Clip Limiting.

• PCM™: RAM Audio advanced Power Control Management to share the total power of the device between the channels according to needs.

• Soft-start, Turn-ON Turn-OFF transients, Muting at turn-ON, Over-heating, DC, RF, Short-circuit.

• Open or mismatched loads, Overloaded power supply.

Number of channels 4 4 4
Total output power 2500 W 5000 W 10000 W
Output Power* (All ch driven / single ch)
2 ohm 4x 625 / 1x 625 W 4x 1250 / 1x 1250 W 4x 2500 / 1x 2500 W
2.67 ohm 4x 625 / 1x 850 W 4x 1250 / 1x 1700 W 4x 2500 / 1x 3300 W
4 ohm 4x 625 / 1x 1250 W 4x 1250 / 1x 2500 W 4x 2500 / 1x 2500 W
8 ohm 4x 625 / 1x 1250 W 4x 1250 / 1x 1250 W 4x 1250 / 1x 1300 W
4 ohm Bridged 2x 1250 W 2x 2500 W 2x 5000 W
8 ohm Bridged 2x 1250 W 2x 2500 W 2x 5000 W
Hi-Z 100V 4x 625 / 1x 1250 W 4x 1250 / 1x 2500 W 4x 2500 / 1x 2500 W
Hi-Z 70V 4x 625 / 1x 1250 W 4x 1250 / 1x 1800 W 4x 2500 / 1x 2500 W


Max output voltage 150 Vpeak 150 Vpeak 150 Vpeak
Max output current 25 Apeak 36 Apeak 50 Apeak
Total Harmonic Distortion <0.05%
Crosstalk (20Hz-1kHz), typical >70dB
Voltage Gain 26dB to 44dB
Signal to noise Ratio 111dB 111dB 111dB
Required AC Mains
Operating Voltage (50Hz-60Hz) 90V-265V AC
1/8 Rated Power (@230V, 4ohm) 2.1 A 3.7 A 7.3 A
Dimensions  W x H x D 483x89x342 mm – 19″x3.5″x13.5″
Weight Net 7 Kg / 15.4 Lb


Protections: Soft-start, Turn-on Turn-off transients, Muting at turn-on, Over-heating, DC, RF, Short-circuit, Open or mismatched loads, Overloaded power supply, ICL™ and PCM™.


* IEC filtered pink noise signal (40Hz-5kHz, 12dB crest factor). 230V AC mains.

Amp channel setup:

• 50Hz HP: 50Hz subsonic filter
• Output Mode: Hi impedance voltage selector (100/70/50/35V). Low impedance power limitation
• Bridge mode: Low impedance bridge mode. 200V/140V high impedance mode
• Gain selection: change gain from 26dB to 40dB (2dB steps)


Signal setup:

• Input Link: link input signal in consecutive channels
• Ouput Levels: hidden potentiometers to adjust output level


GPIO interface:

• GPI Power: turn on/off by sustained contact or sustained voltage
• GPI Mute: mute/unmute completelly amplifier by contact or voltage
• GPO Monitor: monitor each individual channel, with switching contacts for fault/OK status

Standard Version: Standard DUBHE amp is equipped with industry standard Phoenix input and output connectors.



• Dante option: DUBHE amps can be equipped with Dante™ inputs.

• AES67 option: DUBHE amps can also be equipped with digital AES67 inputs.

GPIO option: DUBHE amps with this option provides General Purpose Input Output module to interface with a third party control system.


Options can be installed together.

Contact us:

P.I. La Figuera, c/ Rosa Luxemburgo 34,
46970 Alaquás, Valencia, SPAIN

Ph: +34 96 127 30 54

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