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REAL TUBE SOUND, INNOVATIONS & RELIABILITY
After many years of repeated tests and improvements our OTL technology
gives a true sound and is among the finest available on the market today.
Advanced OTL Technology
HARTUNG OTL & HARTUNG OTL Kit are designed
by P. Doynov MSc. AEE

After years of perfecting the schematic and design Presla amplifiers gives you a realistic feeling of a concert hall.
Based on advanced engineering audio technology and high-quality and long life Russian military tubes those amplifiers combine finest sound all around and low impedance output. With power and reliability this amplifiers are among most desirable sound machines worldwide.

You have found the right spot for the right sound - as real as it should be. No matter what’s on your Vinyl Record Turntable or CD Player the sound will be same, as the musician, or the sound engineer had in their minds and put it on record.

Our OTL Hartung amplifiers will deliver it, as a valuable part of your true home reproduction system or home theater amplification.

Tube amplifier OTL Mania is spreading around the world and despite of costly designs, expencive mono-block with separate power supplies and the Know-How Engineering, Presla amplifier prices are affordable for large segment of fans of this type of amplifiers. Choices to get a HARTUNG OTL amplifier are:

- Clear and transparent sound

- Nice and compact design
- Don’t have bust your budget to have one pair at home

Put a HARTUNG amplifier in your Home Theatre today.

DRIVE ANY SPEAKER WITH THESE
POWERFUL AND REALISTIC
OUTPUT TRANSFORMERLESS 
MONO-BLOCKS /OTL/ AMPS
Output Transformerless OTL
HARTUNG OTL VACUUM TUBE AMPLIFICATION
FINE SOUND - AS REAL, AS IT SHOULD