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ATLAS amplifiers are capable of driving virtually any high quality speaker. An innovative hybrid design incorporates a bipolar output stage, bipolar driver stage, and vacuum tube input gain stage. They stand alone as the only hybrid amplifiers with zero feedback, essential for maintaining harmonic integrity, air, space and coherence. The Atlas provides your choice of full range or high-pass inputs. This unique built-in filter is ideal for speakers featuring powered woofers, such as Vandersteen, or for audio and home cinema systems using outboard powered sub-woofers. Saturn Series design themes are evidenced in the specialized all-aluminum chassis construction and elaborate power supply design.
Pairs well with

Atlas Stereo Amplifier
Product details
Hybrid Design High Performance
Zero feedback and fully differential amplifier with complementary balanced bridge design contributes to clean, open sound. Direct input bypasses all crossovers and switching for ultimate purity. Bus technology reduces power supply impedance between output devices for more instantaneous current. Power supply uses two transformers and three chokes. The high current section uses a dedicated transformer and choke input power supply. The vacuum tube B+ power supply has choke input and is discretely regulated. The result is unequalled clarity and control.
Flexibility
Amplifier has a built-in high-pass crossover: 6 dB / octave, 16 settings from 40 Hz to 200 Hz in approximate 10 Hz increments for use when using a separate subwoofer. Atlas is also available from the factory as a monoblock for exceptionally high power applications.
Details Matter
Cardas patented rhodium-plated binding post with single knob lockdown. All aluminum chassis construction assures durability. Stainless steel cover for transformers prevents magnetic fields from interacting with sensitive audio circuitry, preserving low level musical nuances.
Three Editions
Altas Stereo is available in three versions: Standard, Signature or Eclipse. Atlas Mono is available in two versions: Signature or Eclipse. Atlas Stereo can be factory upgraded to the Signature version, all Atlas units can be factory upgraded to Eclipse edition.
Specs and FAQs
Power & Performance
Power Output: 200wpc channel into 8Ω, 400wpc into 4Ω. Signal to noise: 120dB Bandwidth at full power: 4 - 150kHz Rated THD at full power: <1%
Inputs and Outputs
RCA and XLR input. Input Impedance: 470K Output Impedance: .25 at 1kHz
Weight & Dims
Dimensions: 18"w x 8"h x 19"d Weight: 70 lbs