AUDIBLE ILLUSIONS PH-1 PHONO STAGE PREAMPLIFIER - SOLID STATE
- The shortest path from the record groove to your soul.
Hidden within the grooves of vinyl records is information capable of transporting listeners into a
wonderland of musical experiences. Mined properly, records have the ability to reproduce a natural
sound truly faithful to the original recorded event. With the cartridge converting mechanical energy
into electrical energy, the challenge becomes how to properly preserve and amplify the signal to get
the sound off the record and into your soul.
Three years ago, two of the most respected names in audio joined forces with the goal of building a
state-of-the-art phono preamplifier to do just that. Not satisfied with the status quo, the goal was to
design a phono stage leveraging their decades of experience but taking full advantage of the latest
devices and materials. They say all good things take time and great things perhaps a little longer.
Today we are pleased to share the results of their effort by announcing the Audible Illusions PH-1
Phono Preamplifier - the shortest path from the record groove to your soul.
Designed by legendary audio engineers John Curl and Carl Thompson, the PH-1 is undoubtedly
destined for greatness. The PH-1 leverages a single-ended design philosophy with a circuit
comprised of only the finest devices and components. It employs through-hole construction for
maximum possible sound quality and reliability and a two-chassis design. The control and power
supply units are housed independently which isolates noise and vibration from the delicate audio
section. The two units are connected together via a specially designed, high performance shielded
umbilical cable that is designed to prevent outside noise from affecting the audio signal.
The PH-1 is a no-compromise dual-mono design with the left and right channels electrically and
mechanically isolated from each other to allow true dual mono operation - resulting in definitive
stereo separation and sonic purity. The circuits are wrapped in an enclosure that is functional and
visually stunning. The PH-1 is capable of delivering a musical experience with a level of intellectual
and emotional authenticity only bettered by the live musical event itself.
Most would agree that its rare for an audio product to combine expert craftsmanship and stellar
performance with high value. Yet like other components from Audible Illusions, the PH-1 preserves
this tradition. Listen and we think you will agree that the PH-1 delights with its musicality and timeless
Front Panel has separate MM and MC inputs; MC Cartridge
loading of 50, 100, 500 Ohm and 47k Ohm. Optional User Adjustable Loading for MM and MC inputs.
Off/On and Muting switches.
Record Out and Signal Out.
- Circuit design is proprietary John Curl JFET construction. External power supply has four fully-
regulated JFET power supplies. Main chassis has two fully-regulated power supplies.
- All circuit boards are hand soldered with silver-bearing solder. Phono boards are gold plated.
Circuit traces are OFC copper.
- Precision-machined chassis built on a strong framework designed to dampen vibration. Faceplate,
control knobs, covers and Ssde panels are machined from military-grade aluminum. Screws are
non-magnetic stainless steel.
- Thick faceplate has chamfered top & bottom edges with light-grey semi-gloss sand finish. Center of
faceplate brushed-clear anodized with black lettering. Audible Illusions logo engraved, gold filled.
Control knobs have low-light backlit illumination. RCA jacks are cryode-treated gold plated copper.
- Heavy-duty detachable umbilical cord has military grade amphenol connector connects dual-
independent power supplies. Heavy-duty IEC line cord included.
- Completely handcrafted in USA.
GAIN: MC - 60dB ; MM - 40dB
THD+N: .01% 10Hz20kHz
RIAA EQUILIZATION: .1dB 20Hz to 20kHz
OUTPUT NOISE: -100dB @ 2V Output 20Hz to 20kHz
OUTPUT IMPEDANCE: 50ohm
DIMENSIONS: Each Chassis 17W x 11D x 4H (Incl. Feet)
NET WEIGHT: 45 Lbs. Both Chassis
SHIPPING WEIGHT: 55 Lbs