Philosophy Behind the Hephaestus


In keeping with the Hephaestus Audio design philosophy (please see here and here), the Hephaestus is meticulously executed and all  audible parameters are designed to be as smooth as possible.  For example, components are placed to minimize interference, internal wiring is kept to an absolute minimum, and no connectors are used inside the amplifier – only solder. Frequency response, noise and distortion are all kept as smooth as possible across all operating ranges – from the threshold of hearing to the threshold of pain.  The reason for taking pains to do this is that our brain is wired to be hypersensitive to change, much more so than to absolute value.  The nature of our hearing is taken into account with the Hephaestus in order to give you the most engaging musical experience that your system is capable of.

More Detail on the Hephaestus


The Hephaestus (previously know as the HMA-1000) is the first product from Hephaestus Audio.  Combining incredible warmth, resolution and high power into an unbelievably small package, it is a technical marvel.  It is a fitting start for a company named in honor of the ultimate craftsman.

Benefits and Features Technical Specifications
Ultra-compact: Small package with big sound 1000 Wrms into 4Ω / 600 Wrms into 8Ω
High-power: Physical and emotional impact 20 Hz – 20 kHz +0.0/-0.5 dB (any load)
Efficient: Fill the room with sound, not heat 119 dB dynamic range (unweighted)
Detailed: Low noise for very high resolution 70 uVrms noise floor (unweighted)
Reliable: Spend time listening, not worrying 26 dB gain / 10 kΩ input impedance
Natural: Works with, not against, your hearing 9.0” x 6.75” x 2.25” / 3.5 pounds each
Unique: Not a repackaged amplifier or supply 90 day return policy with 100% refund
Craftsmanship: Hand built by the designer 7 year parts and workmanship warranty

How to Purchase the Hephaestus


You may purchase the Hephaestus online, direct from the factory.  The price is $4900 per pair of monoblocks and includes shipping.  Secure payment processing is handled via PayPal, but you do not need to have a PayPal account.  You may pay as with any other online credit card transaction.  Please remember that your amplifiers are hand built, so allow approximately two weeks for your order to ship.  Are you ready to try the Hephaestus Audio sound?  If so please click on the “Buy Now” button below to begin the journey that will forever change the way you enjoy your music.

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