Obelisk Si-D III line level and DAC integrated amplifier


Legendary RC-coupled Integrated Stereo Amplifier with DAC

There was a neat shoebox amplifier in the 1980s which stirred emotions in unsuspecting 'Hi-Fi Freaks' and music lovers alike. Sadly, the unabashedly different design of the original Ion Obelisk had become entirely forgotten. Well, almost entirely.

After two decades of silence, Heed resurrected this legendary integrated, updating its exterior aesthetics and internal components. More importantly, however, Heed challenged themselves with the demanding task of preserving the classic Obelisk’s absorbing delivery and infectious musicality, while offering even greater transparency, leading-edge detail and more gripping dynamics. Mission accomplished – the Heed Obelisk Si has become a must-hear sensation straight out of the gate.

The Obelisk Si III builds upon the award winning mkII (Best stereo amp £1000-£1500, What Hi-Fi? Awards 2012). It refines and hones the endearing drive and qualities of this highly regarded integrated amplifier. During the years of evolution, the Obelisk Si showed us the nature of RC-coupled amplifiers. By the designing of the current version of this amp, the experts at Heed have found the solution that describes the magic it creates. Transcap technology is now the main path, which they pioneer and intend to follow, unaccompanied in the world.

The Obelisk Si MKIII is rated at a great healthy 50 watts per channel. Don’t be fooled by the kilowatt amps, this fifty is like a valve-amp fifty. And more, as a Transcap amplifier is rather different in this aspect. With this kind of power the Si is capable of astonishing dynamic authority and massive transients any time. Further on, there is the X2 power supply, which converts the Si-system into a preamp/power amp combo with dual mono power amplifiers. Now that’s something classy!

Heed Audio Obelisk Si-V III: Integrated Stereo Amplifier - Features & Benefits:

5 Analogue inputs
MM phono card
Upgradeable analogue power supply (Obelisk X2)
Heed 'Transcap' technology

The Obelisk Si-V III features a remote control for volume (input switching is mechanical to preserve the best quality of sound) and has five analogue inputs for a selection of sources, and in true Heed fashion the Obelisk Si-V III features an upgrade card system for some of their uniquely deft devices. The first input of this Obelisk Si has Heed's highly acclaimed and extremely musical and engaging Dactil 2.3 DA card (1x S/PDIF digital input) pre-fitted so you can enjoy your digital collection 'out of the box'.

Technical Data

Inputs: 5x analogue / including 1x S/PDIF digital
Outputs: 1x stereo speaker / 1x Tape out
Frequency response: 5 Hz – 60 kHz
Input impedance: 10 kΩ
Input sensitivity: 500 mV
Power (8Ω): 50 W / channel
SNR: 96 dB
Supported upgrade cards: MM phono (Vinyl-1.0)
Power supply options: internal / Obelisk X2 / X4
Max. consumption: 200 W
Weight: 6 kg
Dimensions (WxHxD): 22 x 8.5 x 36 cm

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