Emphaser Produkte 2009 Emphaser Startseite

Go for the extremes: The new EMPHASER amps

The design concept of this Class A/B amplifier generation is strictly for the purist, without superfluous features, and concentrates on quality, sound and high output power. The X-Tremes generate an awesome amount of power – so much 'kick' from such a small volume is seldom found.  This is made possible by the use of modern full MOSFET circuitry not only for the power supply but also for the output stage. The final amplifier stage uses a quasi-complementary N-channel MOSFET layout that stands for high efficiency with very high stability.
All four models are exactly the same size at a very compact 38.8 x 18 cm. The amps are externally fused at 80 A, so no wonder that ultimately there is about 800 watts total output power available at the speaker outputs on each model. In particular, the 5-channel is a superlative 'power house'. However, the 4-channel model EA4150XT with 4 x 125 W into 4 ohms and a formidable 4 x 200 W into 2 ohms is also certainly no 'pussyfooter' either.
High quality RCA sockets, fully encapsulated terminals for the direct connection of 25 mm² power and 6 mm² speaker leads, high pass, low pass, subsonic and band pass filters together with an external remote level control round off the equipment of these premium amplifiers. In addition, the mono and 5-channel models have a variable phase shift.


  • Modern Full MOS-FET class-A/B circuitry design, current amplification output stage deploys a quasi- complementary N-channel MOSFET layout
  • Compact, elegant heatsinks with illuminated logos
  • 12 dB/oct. highpass and lowpass filter, continuously adjustable from 40 – 250 Hz; 12 dB/oct. subsonic filter, continuously adjustable from 10 – 50 Hz
  • Mono and 5-channel with phase-shift control section
  • All amps stable at 2 ohms load
  • Input gain continuously adjustable from 0.25 to 6 V
  • High quality RCA inputs, molded "direct terminals" for power cables up to 25 mm² and 6 mm² speaker cables
  • External bass level remote control included in the delivery (except for EA4150XT)

EA460-300XT 5-CH XT Power Amplifier

EA460-300XT 5-CH Power Amplifier

EA4150XT 4-CH XT Power Amplifier

EA4150XT 4-CH Power Amplifier

EA2250XT 2-CH XT Power Amplifier

EA2250XT 2-CH Power Amplifier
EA1450XT Mono Power Amplifier

Technical Specifications EA460-300XT EA4150XT EA2250XT EA1450XT

Rated Power Output (<0.1% THD/14.4 V)

4 x 65 W + 1 x 210 W @ 4 Ω 4 x 125 W @ 4 Ω 2 x 260 W @ 4 Ω 1 x 460 W @ 4 Ω

Rated Power Output (<0.1% THD/14.4 V)

4 x 95 W + 1 x 320 W @ 2 Ω 4 x 200 W @ 2 Ω 2 x 400 W @ 2 Ω 1 x 630 W @ 2 Ω

Rated Power Output (<0.1% THD/14.4 V)

2 x 190 W + 1 x 210 W @ 4 Ω 2 x 400 W @ 4 Ω 1 x 800 W @ 4 Ω n. a.
Line Level Input Impedance 24 kOhms 24 kOhms 24 kOhms 24 kOhms

Frequency Response (+/- 0.5 dB)

20 Hz – 20 kHz 20 Hz – 20 kHz 20 Hz – 20 kHz 20 Hz – 20 kHz
Signal/Noise Ratio >85 dB >85 dB >85 dB >85 dB
Damping Factor @ 4 Ω >200 >200 >200 >200

Dimensions (L x W x H, mm)

388 x 54 x 180 388 x 54 x 180 388 x 54 x 180 388 x 54 x 180