ALEF Delta Sigma - Ultra High Performance
The ALEF Delta Sigma electronics are simply the finest you will ever hear...period!
Delta Sigma has created circuits that are flat & stable to 6Mhz and not requiring special cables.
Crafted with ultra high construction quality using the finest quality components to insure the highest level of performance and a long, trouble-free life.
Sonically, think the transparent purity of the finest OTL amplifiers but lightning fast with a greater top end extension, a more open sound, deeper & tighter bottom octaves, more effortlessly explosive dynamics and an amazing lifelike presentation of tonal qualities.
Delta Sigma has created circuits that are flat & stable to 6Mhz and not requiring special cables.
Crafted with ultra high construction quality using the finest quality components to insure the highest level of performance and a long, trouble-free life.
Sonically, think the transparent purity of the finest OTL amplifiers but lightning fast with a greater top end extension, a more open sound, deeper & tighter bottom octaves, more effortlessly explosive dynamics and an amazing lifelike presentation of tonal qualities.
Pagani Zonda The Pagani supercar (~ $1million) is considered by many in the know to be the world's finest automobile. Breathtakingly beautiful in its' carbon fibre body - pictures certainly do not do it justice. Pagani sells a very limited number of its' custom, hand built supercars each year for it's clients who want the absolute best.
After Horacio Pagani heard the Delta Sigma audio system and wanting the absolute best sound system for his extraordinary automobile, he commissioned Delta Sigma to design the official sound system for the Pagani.
The world's best sound system for the world's finest automobile.
For those who simply prefer the absolute best.
After Horacio Pagani heard the Delta Sigma audio system and wanting the absolute best sound system for his extraordinary automobile, he commissioned Delta Sigma to design the official sound system for the Pagani.
The world's best sound system for the world's finest automobile.
For those who simply prefer the absolute best.
Delta Sigma's newest ALEF amplifiers based on the extraordinary & state-of-the-art DC-6Mhz design
receives the prestigious Haute Fidelitie's very rare "Reference" award! Here is what they say about new DUET SE:
Dynamics: "The Alef communicates tremendous energy on transients. The magnitude when listening to the bass line gives a real sense of presence in the room. The chords are clear and precise, the rhythm is accurately articulated and one feels no bass volume exaggeration meaning the ALEF is sovereign and in control of the lowest octaves."
Soundstaging: "High level of precision of spatial soundstaging is a part of this Italian Dual-Mono stereo block. Although it has such extraordinary qualities of dynamics without restraints, one could not expect same high level of signal resolution and equally high level of soundstaging. It can virtually create a space of holographic illusion and the Alef creates a portrayal of live singing and melodic reproduction"
Tonality/Transparency: “This amplifier offers a very pure listening, very neutral listening experience due in part to the ultrawide bandwidth – on paper and also subjectively. Very powerful male voice & delicate female voice often suggest that of a triode - sometimes approaching the absolute very best with accurate voice without paralysis.”
receives the prestigious Haute Fidelitie's very rare "Reference" award! Here is what they say about new DUET SE:
Dynamics: "The Alef communicates tremendous energy on transients. The magnitude when listening to the bass line gives a real sense of presence in the room. The chords are clear and precise, the rhythm is accurately articulated and one feels no bass volume exaggeration meaning the ALEF is sovereign and in control of the lowest octaves."
Soundstaging: "High level of precision of spatial soundstaging is a part of this Italian Dual-Mono stereo block. Although it has such extraordinary qualities of dynamics without restraints, one could not expect same high level of signal resolution and equally high level of soundstaging. It can virtually create a space of holographic illusion and the Alef creates a portrayal of live singing and melodic reproduction"
Tonality/Transparency: “This amplifier offers a very pure listening, very neutral listening experience due in part to the ultrawide bandwidth – on paper and also subjectively. Very powerful male voice & delicate female voice often suggest that of a triode - sometimes approaching the absolute very best with accurate voice without paralysis.”
ALEF Delta Sigma - Products
ALEF Duet-SE Stereo amplifier
The best solid-state in the world
The best solid-state in the world
Simply, the best sounding amplifier available…
Highest level of technology
Unsurpassed levels of transparency, dynamics & resolution Deeper & better controlled bass Extraordinary “Soul” that makes others sound soulless. Nothing else compares!
Highest level of technology
Unsurpassed levels of transparency, dynamics & resolution Deeper & better controlled bass Extraordinary “Soul” that makes others sound soulless. Nothing else compares!
ALEF Orchestra
Stereo Integrated amplifier
Stereo Integrated amplifier
ALEF Orchestra is born on legacy of Delta Sigma North Pole SE integrated, but now raised to new levels combining upgraded DUET SE circuit design with build in state-of-art preamplifier, known from North Pole preamp series.
ALEF Solist
Mono amplifier blocks
Mono amplifier blocks
ALEF Solist Mono blocks build on design of DUET SE, but packed in two separate enclosures to achieve higher output power and higher A class bias. Design is same 0-6MHz ultra high bandwidth.
ALEF Duet-SE specifications:
- Based on proprietary state-of-the-art DC-6Mhz design
- 180w/ch @ 8 ohms
- 600w/ch @ 0.1 ohm
- 10,000w/ch Impulse Power (for unrestrained dynamic peaks)
- Highly biased to Class-A
- Inputs: RCA & XLR (1 pr each)
- Totally stable into low impedance loads
- No special cables & settings required
- Substantial anti-vibration technology esp on power supply
- Available as Mono, 2-channel, 3-channel & Integrated
ALEF Duet-SE - Design feat. cont.
- Litz ultrapure copper internal wire standard - silver optional
- Pure copper binding posts standard - silver optional
- Key components are hand shielded with a copper foil and grounded
- Printed circuit board tracings 4x thicker than currently available
- Very high power reserve is provided by many small fast capacitors wired in parallel and positioned as close as possible to active device
ALEF Duet-SE - Design features:
- (2) Transformers—each capable of massive 680 VA
- “Planted” in a thick quartz powder for noise shielding & vibration control
- “Drowned” in resin within a very expensive mu-metal shielded enclosure
- Entire transformer box is “floated & suspended” by several silent vibration blocks
- All magnetic radiation and mechanical vibrations are completely suppressed