Second hand unit, in excellent conditions, with original box and accessories, 1 year warranty.
MC phono stage special version
Change in format (from 22 cm to 43 cm) to accommodate larger power supplies, 21st-century features (DAC, streaming, Bluetooth, phono input, headphone output)… everything is designed to combine sonic refinement with daily usability.
The Transcap architecture remains the beating heart, providing body, presence, and naturalness, while the doubled power transistors stabilize the Heed amplifier under complex loads.
Result: faster, more dynamic, and more expansive reproduction.
Compared to the previous Obelisk Si3 + X2 duo, the new Heed Integrated amplifier immediately delivers a higher level of performance.
Audiophiles loyal to the “Classic” format will be reassured: handcrafted production continues, as does the availability of X2 and X2 Classic power supplies for upgrades.
HEED does not just offer a facelift: the Obelisk Integrated represents a deep redesign, built to last and evolve.
HEED takes a calculated risk with a 43 cm chassis, but the benefits are immediate: more internal volume for more robust power supplies, controlled thermal dissipation, and rich connectivity.
The Heed amplifier features a clean front panel with precise, readable buttons, while the rear houses two expansion slots for the DAC and streamer card.
Careful construction minimizes vibrations and background noise, ensuring exemplary operational silence.
Ergonomics improve without sacrificing identity: the Heed amplifier remains compact in spirit, but gains presence to integrate elegantly into a standard Hi-Fi cabinet.
The Super Integrated version, selected with higher-grade components and a more powerful power supply, further increases current reserve and low-frequency control: a Heed amplifier designed for demanding speakers and spacious living rooms.
Transcap
The Heed Obelisk Integrated maintains the famous Transcap technology, ensuring a smooth musical flow and natural micro-dynamics.
Its doubled power transistors provide exemplary control of speakers, even the most demanding ones.
More capable than the previous Si3 + X2 duo, it offers greater density and impact at a more accessible price.
Expandable, the Heed amplifier can accommodate an optional DAC module (2 optical, 1 coaxial, 1 USB) and a Roon Ready streamer card compatible with Qobuz, Tidal, and Spotify Connect.
Complete connectivity includes a variable Pre-Out for adding a power amplifier and a fixed Line-Out ideal for digitizing your vinyl records.
Easy to install and enjoyable to use, the Heed amplifier impresses with its smooth, balanced, and non-aggressive sound.
It pairs with a wide range of speakers, while the Super Integrated version delivers more current and dynamics for more ambitious systems.
Heed Audio at a glance
Heed Audio is not just another hi-fi electronics manufacturer with British audio heritage in its DNA — it is a manifesto of authenticity, passion, and independent vision. Founded in Hungary, the brand stands out for its radically human approach to sound reproduction. In a market so often dominated by numbers, measurements, and technological catchphrases, Heed chooses a different path: that of the listening experience as an absolute value.
Every Heed product is designed to serve the music, not the machine. The amplifiers, DACs, and external power supplies are built according to a philosophy that places musicality, tonal coherence, and natural soundstaging at the very centre. There are no gimmicks — just tonal integrity and emotional balance that recall the finest British electronics of the golden era, reimagined with elegance, craftsmanship, and a modern spirit.
And that’s exactly where it all began — with one defining example:
In the 1980s, those who brought home an ION Obelisk experienced something rare and precious: the feeling of having discovered one of hi-fi’s best-kept secrets. It wasn’t a flashy amplifier, nor did it shout its specifications. But from the very first listen, many enthusiasts realised that something extraordinarily musical was happening.
Here’s what it felt like:
A sense of wonder: at how such a compact device could drive even demanding speakers with such ease and refinement.
Emotion: because the Obelisk didn’t impress through brute power, but through its ability to tell the story of music — with fluidity, dynamic range, and a sense of timing reminiscent of valve amplifiers.
Deep satisfaction: the kind that comes from extended listening sessions, free of fatigue, drawn into a sound that keeps you there.
A sense of uniqueness: because owning an Obelisk meant making a choice that went against the grain — a commitment to musical substance over passing trends.
In short, those who welcomed such a device into their home discovered an amplifier that didn’t try to dazzle with figures or appearance, but that won them over gradually, listen after listen, by speaking directly to the heart.
And on this front, Heed Audio makes no compromises. It doesn’t follow fashion. It’s not made for everyone. But those who discover it rarely look back. Because listening with Heed isn’t about technical showmanship — it’s about returning to music as a deep, living, and emotionally resonant experience.
If you’re seeking the soul of sound, Heed is a name worthy of your attention — and your respect.
Second hand unit, in excellent conditions, with original box and accessories, 1 year warranty.
MC phono stage special version
The ZAX design project marks a new era for amplifiers, introducing new concepts aimed at creating an amplifier capable of driving any load under any input-signal condition. The ZAX design is based on a high-voltage (120 V DC), high-current (±20 A) circuit. To achieve this ambitious goal, our engineers required custom-made components:
• Special high-current, high-voltage transistors capable of handling low-amplitude signals.
• Special output devices featuring transistors capable of handling high currents and equipped with integrated temperature compensation.
• A special high-energy, low-flux-loss AC mains power transformer.
The result is the ZAX design! The ZAX delivers extraordinary sound quality: the FET stage provides a smooth and fluid soundstage, while the high-energy power transistors ensure excellent performance, with detailed high frequencies and authoritative, well-defined bass.
The electronic circuit is based exclusively on discrete components, transistors and FETs (input device), with no integrated circuits used in the signal path! (ICs cannot deliver high current!)
The amplifier features 5 high-level line inputs, an output for the loudspeaker system, and a tape-recording output.
The ZAX-70 replaces the ZAX-60 model. The new integrated amplifier offers increased power of 70 W per channel into 8 ohms and a chassis design that harmonizes with the other models in the range (CDP-603 CD player and Digitube). The ZAX-70 represents the evolution of the ZAX-60 for the “R” series of transistor electronics, characterized by a chassis with rounded sides. The shape is not merely an aesthetic evolution, but also ensures greater chassis rigidity, improved mechanical behavior of the cabinet, and better vibration control.
The ZAX-70 is designed with an exclusively transistor-based circuit, without the use of integrated circuits in the signal path. The bipolar transistors have been selected for their high current capability, reaching a peak current of 12 A! There is only one capacitor in the signal path; it is not electrolytic, but a high-quality film capacitor. There are no limitations on the current capability of the output stage, which can therefore drive loudspeakers with low load impedances.
The volume control is operated by an ALPS Blue Velvet series potentiometer; the control position is indicated by a blue LED, specially designed for its anti-static properties. A volume-controlled passive output allows connection of an active subwoofer or a headphone amplifier.
As with the chassis design, particular attention has been paid to eliminating and controlling every vibration generated by the power transformer.
An aluminum remote control is supplied for operating the amplifier's volume.
List of items included:
- Power cable
- Multifunction remote control
- User and maintenance manual
- Manufacturer's warranty
Technical Specifications:
POWER OUTPUT @ 8 OHM 70 W RMS per Channel
DAMPING @ 100 Hz > 100
Frequency Response – 1.5 dB @ max. power 10–50 kHz
Sensitivity for all line inputs 200 mV
Tape recorder output voltage 150 mV
Total Harmonic Distortion (THD) > 0.1%
Signal-to-noise ratio > 100 dB
Line input impedance 50 kΩ / 220 pF
Power supply and power consumption 110/220 VAC, 190 W, 50/60 Hz
Weight and dimensions 10 kg net – 430 × 300 × 108 mm (W × D × H)
Second hand unit, In excellent condition, supplied without the original packaging. Fitted with Philips ECG small-signal tubes and a brand-new matched quad of JJ KT88 power tubes. Includes a 1-year warranty.
B-Stock product, (read below) in excellent condition with original packaging, 2 year warranty.
The Rega Brio is an exceptional amplifier: musically complete, has a refined and powerful sound, and goes far beyond its class for balance and tunefulness
ATTENTION: Aurorasound products can only be shipped in Italy, for this reason orders received from abroad will be canceled.
Second hand product, in excellent conditions, with original box, 1-year warranty.
B-Stock product, (read below) in excellent condition with original packaging, 2 year warranty
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