HiFiMAN Susvara Headphones and EF1000 Amplifier Combo

NANOMETER GRADE

The driver's incredible thinness, less than a millionth of a meter, and extremely low mass mean it can produce tremendously low distortion levels yet offer a highly dynamic response. By combining this diaphragm and "Stealth Magnet" technology each working in harmony, the audio produced is of a remarkable tonal quality and clarity. The "Window Shade" on the SUSVARA has been painstakingly optimized to avoid arty-resonant frequencies. This leads to superior aural purity, tonally clean and unadulterated yet provides practical protection for the ultra-fine diaphragm and additional offering an appealing visual aesthetic.

THE ULTIMATE COMPLEMENTS

The EF1000 is the SUSVARA's official amplifier, which utilizes a separate power supply design. Its SSRP circuit uses six 6922 vacuum tubes and six pairs of transmitters in parallel. The result is a perfect combination of the beautiful sound from the vacuum tubes and the powerful output of a solid-state amp.

HYBRID DESIGN

The headphone output is 20w, pure Class A. The amplifier output is 50w, pure Class A, and 110w, Class A/B. The SRPP circuit uses six 6922 vacuum tubes and six pairs of transmitters in parallel along with a separate power supply design. The EF1000 volume control uses the same relay-based attenuator technology as the SHANGRI-LA. This offers a silky smooth response and ultra-low distortion from its use of dedicated pathways.

FORM FOLLOWS FUNCTION

Special ergonomic design it01L for superb comfort and extended listening.

Specifications
EF1000:
Input Stage: Vacuum Tube SRPP Circuit
Headphone Output for 35Ω Load: 20w. pure Class A
Amplifier Output for 8Ω Load: 50w. pure Class A, 110w. Class A/B
SNR (A weight): 108dB
Dynamic Range: 111dB
Weight:
Main Unit: 13.45 kg (29.65lb)
Power Supply: 11.2 kg (24.69lb)
Dimensions:
Main Unit: L460x280x170 mm3 (18.11" x 11.02" x 6.69")
Power Supply: L360x 200x170 mm3 (14.17" x 7.87" x 6.69")
SUSVARA:
Frequency Response: 6Hz-75kHz
Impedance: 60Ω
Sensitivity: 83dB
Weight: 450g (15.9oz)