SW1X LPU V Phono Pre-Amplifier

LPU V DHT Phono Pre-Amplifier

Let Your Vinyl Come Alive

LPU V is our top of the line 45 Directly Heated Triode power output tube based Phono Pre-Amplifier. LPU V offers the most alive, holographic and transparent presentation of music. It is part of our Performance Level 5 line up that represents a no-compromise & no-expense-spared design philosophy.

The input stage of the LPU V uses the EF37A, an octal variant of the renowned EF86. Both of these tubes were used in RTR tape recorders during the early 1960s and played a key role in producing some of the finest analogue recordings ever made. The interstage/driver is based on the musical and well known 6SN7 double triode. The output stage is now based on the 45 DHT power valves. LPU V is at the penultimate level of any phono stage, making it the most natural and organic sounding pre-amp for any turntable.

LPU V Phono Pre-Amplifier Top of the Line Phono

LPU V DHT Phono Pre-Amplifier

Let Your Vinyl Come Alive

LPU V is our top of the line 45 Directly Heated Triode power output tube based Phono Pre-Amplifier. All in all, LPU V offers the most alive, holographic and transparent presentation of music. It is part of our Performance Level 5 line up that represents a no-compromise & no-expense-spared design philosophy.

The input stage of the LPU V uses the EF37A, an octal variant of the renowned EF86. Both of these tubes were used in RTR tape recorders during the early 1960s and played a key role in producing some of the finest analogue recordings ever made. The interstage/driver is based on the musical and well known 6SN7 double triode. The output stage is now based on the 45 DHT power valves.

SW1X Audio Design™ LPU V Phono Features:

Specially Selected and Harmonically Matched Component & Material Quality
MM Phono Pre-amplifier is suitable for all moving magnet (MM) or moving coil (MC) in combination with a matching SUT
3 Gain Stage Pentode Input-RIAA-Double Triode Interstage-Directly Heated Triode Output Stage Design
Signal Output Transformer De-coupled, Zero NFB, Triode Valve Output Stage in Pure Class A, (inductive loading & de-coupling) Circuit Topology
Split 2 Chassis Design for minimum Noise Floor
SW1X Audio Design™ Custom Designed Signal Output Transformers
Based on 2 x EF37A Pentodes Input, 1 x 6SN7 Double Triode and 2 x 45 DH Triodes on Output
Active Series-Resistor-less RIAA Equalization for maximum dynamics
5U4GB Valve Rectified C2LC2LRC (choke filtered) B+ Power Supply
47K Input Impedance & < 200 Ohm Output Impedance
Total Gain is approx. 46-52 dB depending on the Choice of Valves
Maximum Input Voltage: 300mV
3 x Mains Transformers & 6 Filtering Chokes

Specifications

Tube Compliment: 2 x EF37A, 1 x 6SN7, 2 x 45, 1 x 5U4GB, 1 x 5Y3, 2 x VR90/105
Dimensions: Height (mm) 140 x Width (mm) 440 x Depth (mm) 410
Weight (kg): 29.5
Max Power Consumption (W): 55
Output Noise, Unweighted (mVrms): < 5
Output Impedance (Ohms): <120

Specifications

Tube Compliment: 2 x EF37A, 1 x 6SN7, 2 x 45, 1 x 5U4GB, 1 x 5Y3, 2 x VR90/105
Dimensions: Height (mm) 140 x Width (mm) 440 x Depth (mm) 410
Weight (kg): 29.5
Max Power Consumption (W): 55
Output Noise, Unweighted (mVrms): < 5
Output Impedance (Ohms): <120

Seperate Power Supply Unit

LPU V Phono Pre-Amplifier is a unique 2-Chassis Design where the 2nd chassis is separate power supply, designed to eliminate EMI (electro-magnetic interference). The two Chassis are connected via premium quality SW1X Magnum & Twin Opus Cables

Seperate Power Supply Unit

LPU V Phono Pre-Amplifier is a unique 2-Chassis Design where the 2nd chassis is separate power supply, designed to eliminate EMI (electro-magnetic interference). The two Chassis are connected via premium quality SW1X Magnum & Twin Opus Cables