[Limited-time Offer] EA4

Luxury & Precision's Circuit Technology x Purely Japanese Vacuum Tubes Rewrite History

To commemorate the 10th anniversary of the LUXURY & PRECISION brand, the high-power portable tube amplifier "EA4" is finally here after approximately two years of development. *The worldwide limited edition EA4 Limited (99 units) will be available for pre-order and sale at Fujiya Avic, Nakano.

The unique functions brought by numerous discrete designs break new ground in personalized audio, a first in the industry, complementing all connection compatibilities.

🔹 Precisely tuned tube preamplifier circuit to supply high voltage to the vacuum tube anode
🔹 Precise and ideal constant current source by discrete configuration
🔹 Combinable dual mode of ILA/ILH and four types of adjustments for two-stage gain input/output stages
🔹 12 Panasonic film capacitors used for coupling of the tube preamplifier
🔹 Special linear regulator optimized for vacuum tube resonant frequency
🔹 CNC machined metal dual shield and protective cover equipped for the vacuum tube
🔹 Vibration suppression design: eight high-damping silicone buffers placed on both sides
🔹 Improved bandwidth characteristics with two independent high-power positive and negative power supplies
🔹 For power filtering of the discrete headphone amplifier circuit, 16 Nichicon 10x12.5mm audio-grade aluminum electrolytic capacitors are used
🔹 Headphone amplifier power supply voltage can be selected between ±13V and ±15V
🔹 Equipped with six Panasonic 18650 low internal resistance battery cells
🔹 Internal resistance difference between cells adjusted to less than 0.5 milliohms
🔹 Eight TO252 package power transistors used in the discrete headphone amplifier circuit
🔹 Low-temperature drift alloy used for the emitters of large transistors, and 24 resistors with 250mW/0.5% precision adopted
🔹 Switchable from Class AB to Class A, with 11 levels of static current adjustment
🔹 Switchable between pure tube preamplifier mode and tube preamplifier + discrete mode
🔹 Volume design and control potentiometer follow and surpass the LP6Ti 7Anv
🔹 Balanced output per channel: 6800mW at 32Ω, 1200mW at 300Ω

🔶 Special article "Evolution of the EA4 to a New Dimension" is here

*Pre-order indicates a reservation.