REFERENCE

Pure High-End Sound Quality

The EISA awarded REFERENCE components obtain the highest attention and care during a long lasting development.
Without any compromise, each component is selected from the best ones available on the market.
Highest production quality and the most accurate supervision of every single part ensure not less than perfect performance, ultimate sound quality and workmanship for the highest demanding customer.
Emphasizing the high-end status of the REFERENCE products, each amplifier, speaker and subwoofer is finally certified by GROUND ZERO´s in-house quality department and delivered in a classy, logo-branded wooden box handmade in Germany.

REFERENCE Amplifier

The designation of the REFERENCE 2PURE and 4PURE amplifiers reveal the essential idea behind: Pure Sound Quality! By omitting strictly any kind of signal affecting filter, the result is a completely new and impressing high-end audio performance never heard before.
Only the best components ever have been considered good enough to find their way to the REFERENCE amplifier line-up.
Cooled by a high-quality copper-anodized aluminum heat sink, each model has been equipped with a slightly toned acrylic bottom allowing a glance on the selected components accurately arranged on the discreetly white illuminated and copper-plated double-layer pc board.

2000 Watts

4-channel ultimate high end amplifier with pure direct signal layout, BIAS adjustment and best quality selected parts for the most sophisticated listener´s demands

High-End 4-channel SQ amplifier
Symmetrical layout
Class AB technology
Pure direct signal path
Variable BIAS setting
Exclusive high quality components
Rhodium coated RCA sockets
Exclusive heatsink with engraved Ground Zero lettering
Acrylic bottom plate with LED illumination
Highest Sound Quality – without compromises!

Model	High-End SQ amplifier
Channels	4
Output Power (@ 4Ω)	4x 150 Watts RMS
Output Power (@ 2Ω)	4x 270 Watts RMS
Output Power (@ 1Ω)	4x 425 Watts RMS
max. Output Power (CEA-2006A / 10%THD+N)	2x 1000 Watts
Frequency Response	5 Hz – 38 kHz
HPF / LPF / BPF	○ / ○ / ○
Bass Boost / Phase switch	○ / ○
High Level Input / Auto-on	○ / ○
Remote	○
BIAS Setting	●
Link mode	○
Dimensions (W x L x H)	236 x 590 x 67.5 mm / 9.29 x 23.23 x 2.66″

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