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The 21st century Obelisk 'si' (mkII) integrated amplifier features five line inputs, remote volume control, a substantial power supply (which can be further enhanced by the Obelisk 'x2' outboard power supply), and the ability to accept either optional phono stage or DAC modules.

Technically speaking, the Obelisk 'si' (mkII) defies conventional measurement - mere specifications can be wildly misleading here. Consider output power: the Obelisk 'si' (mkII) is conservatively rated at 35 watts per channel into 8 ohms. While this represents a humble enough watt/cost ratio, here 35 watts don't exactly equal 35 watts, since the Obelisk's non-DC-coupled design behaves rather more akin to valve amplifiers of similar rating. With this kind of power on board, better valve amps are capable of astonishing dynamic authority, and we're more than satisfied that the Obelisk 'si' (mkII) adheres to this paradigm and then some.

Home > HiFi > Integrated Amplifiers > Heed Audio > Heed Audio Obelisk SI MKII Integrated Amplifier

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Heed Audio Obelisk SI MKII Integrated Amplifier Heed Audio Obelisk SI MKII Integrated Amplifier Heed Audio Obelisk SI MKII Integrated Amplifier

Frequency response:

Input impedance:

Input sensitivity:

Power (8Ω):

Power (4Ω):

SNR (A-weighted):

Max consumption:


Dimensions (WxHxD)


10Hz – 60kHz (<0.1% THD)



35W/channel (50W with X2 PSU)

60W/channel (80W with X2 PSU)




22 x 8.5 x 36cm

Gloss black or White

Heed Audio Obelisk SI MKII Integrated Amplifier

Finishes: Gloss Black or Gloss White
Warranty: 12 months
Available from: Poole
Delivery: In-Store Purchase Only (no mail order)

Our Price: £1290.00

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