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We are proud to bring our top of the line Mercury 2 Cascode vacuum tube line stage
preamplifier to production.. It features the Type 85 six pin triode vacuum tube, and all
vacuum tube rectification, using the 5AW4 octal tube rectifier. The Mercury 2 Cascode
preamplifier is the next step beyond the highly acclaimed UltraVerve and our first Mercury
preamplifier.. We designed around the beautiful Type 85 triode vacuum tube because of,
quite simply, its ability to touch the ineffable.
We developed this line stage to complement our single ended triode amplifiers. One of the
things we achieved was to design a preamp that did not damage the dynamic quality of the
music. The Mercury 2 Cascode line stage is a true zero negative feedback Class A design.
The tube complement coupled with tube rectification produces a huge, full-bodied
soundstage and an angelically sweet and dynamic midrange. This preamp is just a joy to
listen through.
The Mercury 2 Cascode preamplifier features 100% hand wired point-to-point circuitry in
the audio as well as the power supply circuit. The brushed aluminum front panel is
available with either a silver or black anodized finish.. It features a soft start turn on circuit
for gentle startup. The design places very little stress on the tube compliment. This assures
extremely long service and sonic life of the tubes. Quality, Value, and Performance, by
deHavilland, "Hand made in California with a passion for sound since 1997"
The remote Mercury 2 is built exactly the same as the deHavilland Mercury Preamplifier,
with a Stereo Alps Motorized Potentiometer Volume Control instead of the Gold point
Stepped Attenuator Volume Control. Features Remote volume control with mute on -off
feature, infra red remote control.
According to Kara: The vacuum tubes we employ give you what in "Tube Lore" is
described as "BIG TONE", something you just can't get with nine pin miniature tubes found
in most preamps. 12AX7’s or 6922’s just can't get there. While many companies say that
the simplest circuit is the best, they don’t practice what they preach -- they have miles of
circuitry and solid state regulation everywhere. Our R&D shows that regulated power
supplies can ruin the dynamics and imaging, just like too much feedback does. We spend
more time and money on our filtering and use big, strong 5U4 and 5AW4 tube rectifiers,
because they provide super dynamics. Furthermore, all of our power supply and audio
circuit wiring is point to point, using the best wire available and the best dielectric known to
man -- air. And while others may dress their equipment up with fancy gold or chrome
plating and exotic woods that offer little or no sonic improvement, we prefer to use premium
components and provide you, the listener with affordable, high quality equipment. Our
gear is literally overbuilt to last a lifetime! At deHavilland, we are serious when we say that
we want more listeners to be able to experience the beauty of single-ended vacuum tube
sound, making this type of pre-amplifier available to a much wider range of listeners --
that's our story.
Design Specifications
* bandwidth: 20Hz to 80 kHz
* output class: Class A
* feedback: zero negative feedback
* maximum output: 30 volts p-p, gain approximately 12dB
* signal triodes: 2 X Type 85 SingleTriode
* cathode follower: 2 X 6BL7 Dual Triode Cascode Circuit
* rectifier tube: 1X 5AW4
* signal/noise ratio: 85dB
* inputs: four stereo
* outputs: two stereo
* input impedance: 50k ohms.
* output circuit: Cathode follower, minimum 10k Ohm load
* dimensions: 18"w, 11"d, 6"h
* weight: 26 lbs. including shipping carton.
Special Features
* All tube compliment
* Vacuum tube rectification
* Heater warm up delay timer
* Cardas Cable
* Silver teflon coated high purity copper wire
* Wonder Solder
* 100% hand wired point to point circuitry
* NEW! Silver or Black anodized brushed aluminum front panel
* Paint filled engraved logo
* Brushed aluminum anodized silver or black
* Output level balance controls - optional
* Side Wood Panel Ready- Chassis includes 2 per side 8-32
threaded anchor points to mount custom side panels.
* Shielded AC supply IEC cable
* High voltage power supply transformer
* High voltage 5AW4 rectifier tube
* Ground floating switch
* Vampire high purity solid copper wire
* Military Spec Paper in Oil Capacitors
* Auricap Capacitors
* Roederstein Resistors
* Goldpoint stepped attenuator features Smooth "precise feeling" turning torque. Highest
quality, Swiss made switch components. 24 position switches with "make before break"
contacts. Silver plated rivet type switch contacts with gold anti-corrosion coating.
Not available in all areas.
Depending on your location, your order may be directed to the deHavilland dealer nearest you.
preamplifier to production.. It features the Type 85 six pin triode vacuum tube, and all
vacuum tube rectification, using the 5AW4 octal tube rectifier. The Mercury 2 Cascode
preamplifier is the next step beyond the highly acclaimed UltraVerve and our first Mercury
preamplifier.. We designed around the beautiful Type 85 triode vacuum tube because of,
quite simply, its ability to touch the ineffable.
We developed this line stage to complement our single ended triode amplifiers. One of the
things we achieved was to design a preamp that did not damage the dynamic quality of the
music. The Mercury 2 Cascode line stage is a true zero negative feedback Class A design.
The tube complement coupled with tube rectification produces a huge, full-bodied
soundstage and an angelically sweet and dynamic midrange. This preamp is just a joy to
listen through.
The Mercury 2 Cascode preamplifier features 100% hand wired point-to-point circuitry in
the audio as well as the power supply circuit. The brushed aluminum front panel is
available with either a silver or black anodized finish.. It features a soft start turn on circuit
for gentle startup. The design places very little stress on the tube compliment. This assures
extremely long service and sonic life of the tubes. Quality, Value, and Performance, by
deHavilland, "Hand made in California with a passion for sound since 1997"
The remote Mercury 2 is built exactly the same as the deHavilland Mercury Preamplifier,
with a Stereo Alps Motorized Potentiometer Volume Control instead of the Gold point
Stepped Attenuator Volume Control. Features Remote volume control with mute on -off
feature, infra red remote control.
According to Kara: The vacuum tubes we employ give you what in "Tube Lore" is
described as "BIG TONE", something you just can't get with nine pin miniature tubes found
in most preamps. 12AX7’s or 6922’s just can't get there. While many companies say that
the simplest circuit is the best, they don’t practice what they preach -- they have miles of
circuitry and solid state regulation everywhere. Our R&D shows that regulated power
supplies can ruin the dynamics and imaging, just like too much feedback does. We spend
more time and money on our filtering and use big, strong 5U4 and 5AW4 tube rectifiers,
because they provide super dynamics. Furthermore, all of our power supply and audio
circuit wiring is point to point, using the best wire available and the best dielectric known to
man -- air. And while others may dress their equipment up with fancy gold or chrome
plating and exotic woods that offer little or no sonic improvement, we prefer to use premium
components and provide you, the listener with affordable, high quality equipment. Our
gear is literally overbuilt to last a lifetime! At deHavilland, we are serious when we say that
we want more listeners to be able to experience the beauty of single-ended vacuum tube
sound, making this type of pre-amplifier available to a much wider range of listeners --
that's our story.
Design Specifications
* bandwidth: 20Hz to 80 kHz
* output class: Class A
* feedback: zero negative feedback
* maximum output: 30 volts p-p, gain approximately 12dB
* signal triodes: 2 X Type 85 SingleTriode
* cathode follower: 2 X 6BL7 Dual Triode Cascode Circuit
* rectifier tube: 1X 5AW4
* signal/noise ratio: 85dB
* inputs: four stereo
* outputs: two stereo
* input impedance: 50k ohms.
* output circuit: Cathode follower, minimum 10k Ohm load
* dimensions: 18"w, 11"d, 6"h
* weight: 26 lbs. including shipping carton.
Special Features
* All tube compliment
* Vacuum tube rectification
* Heater warm up delay timer
* Cardas Cable
* Silver teflon coated high purity copper wire
* Wonder Solder
* 100% hand wired point to point circuitry
* NEW! Silver or Black anodized brushed aluminum front panel
* Paint filled engraved logo
* Brushed aluminum anodized silver or black
* Output level balance controls - optional
* Side Wood Panel Ready- Chassis includes 2 per side 8-32
threaded anchor points to mount custom side panels.
* Shielded AC supply IEC cable
* High voltage power supply transformer
* High voltage 5AW4 rectifier tube
* Ground floating switch
* Vampire high purity solid copper wire
* Military Spec Paper in Oil Capacitors
* Auricap Capacitors
* Roederstein Resistors
* Goldpoint stepped attenuator features Smooth "precise feeling" turning torque. Highest
quality, Swiss made switch components. 24 position switches with "make before break"
contacts. Silver plated rivet type switch contacts with gold anti-corrosion coating.
Not available in all areas.
Depending on your location, your order may be directed to the deHavilland dealer nearest you.
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