The King MKII
A tube/MOSFET hybrid headphone amplifier designed by Bascom King exclusively for Audeze and voiced around the LCD-4 headphone. It is aimed at listeners wanting a high-end desktop amp. The listing marks it as a legacy product no longer sold by the maker.
- Designed by Bascom King exclusively for Audeze
- Two-stage hybrid: E88CC tubes plus MOSFET output
- 6 W of music power
- Separate PCBs and regulators per channel
- No capacitors in the signal path
- Meters tuned for use with the LCD-4
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The King MKII is a desktop headphone amplifier created for Audeze by circuit designer Bascom King. It uses a two-stage hybrid topology: a pair of twin-triode E88CC input tubes, a differential P-MOSFET driver stage and MOSFET output devices. NPN MOSFETs are used so that devices can be matched closely, and the amplifier is rated at 6 W of music power.
The design places the left and right channels on separate circuit boards, each with its own voltage regulators and a perforated magnetic shield. An oversized toroidal transformer is molded in epoxy and shielded. A DC servo between the input and output stages holds DC offset near zero, and a symmetrical regulated supply provides ±16 V DC to the output devices. No capacitors sit in the signal path.
The chassis is anodized, with 1/2" side panels, 1/4" top and bottom panels and a 5/8" clear-coated front panel. Active components and the AC input are enclosed in a Faraday-cage shield to reduce RFI. Front-panel meters are calibrated to show SPL and power levels when used with the LCD-4. The unit is built in California.
Specifikationer
- Märke
- Audeze
- Modell
- The King MKII
- Kategori
- Hörlurar
Audio
- Topology
- Two-stage hybrid
- Input tubes
- Pair of twin-triode E88CC
- Driver stage
- Differential P-MOSFET
- Output devices
- NPN MOSFET
- Music power
- 6 W
- Signal path
- No capacitors in signal path
- DC offset control
- DC servo circuit between input and output stages
Power
- Output device supply
- ±16V DC, symmetrical regulated
- Transformer
- Oversized toroidal, epoxy-molded and shielded
- Regulation
- Separate voltage regulators per channel
Physical
- Side panels
- 1/2" thick
- Top and bottom panels
- 1/4" thick
- Front panel
- 5/8" thick, clear-coated
- Finish
- Anodized casework
- Shielding
- Faraday cage on active components and AC input
- Channel layout
- Left and right on separate PCBs
- Front-panel meters
- Reflect SPL and power levels with LCD-4
- Origin
- Built in California
General
- Designer
- Bascom King
- Matched headphone
- Audeze LCD-4
- Model code
- 300-BA-1110-01-B
- Status
- Legacy product, no longer available for sale