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WDPre3 Valve
Preamplifier
Ref: WDPRE3
A brand new and innovative valve
preamplifier featuring low impedance drive to suit any power
amplifier. This 5 input line level preamp is essentially an
SE triode power amplifier in concept. WDPre3 uses an ECC82
double triode arranged as input voltage amplifier and power
output amplifier stages, the latter driving large 20:1
output transformers.
The use of output transformers not only provides a low
impedance drive but also avoids any possibility of slew rate
limiting in the output stage making the performance
independent of the capacitance of interconnect cables. Thus
the WDPre3 will successfully drive long cables connecting to
power amplifiers near the speakers if you wish. Twin pairs
of outputs allow easy connection to power amplifier and
headphone amplifier, or bi-amping.
Another advantage is due to the interwinding screens used in
this advanced design. Effectively the primary and secondary
windings are isolated from each other allowing us to break
the ground connection between preamp and power amp thus
avoiding the possibility of hum loops.
Read the Hi-Fi World review by
clicking here,
External dimensions with valves: W135 x D310 x H80mm.
Weight: 3.5kg
Multi input standard kit:
£495.00 (Built and Tested £665.00)
XL upgrade £75.00
Note: This preamplifier requires WDPSU3 Power Supply.
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WDPSU3 Power Supply for
WDPre3 and WDPhono3
Ref: WDPSU3
High performance choke power
supply with separate HT and Heater feeds for both WDPre3 and
WDPhono3 preamplifiers. Supplies the correct, smoothed, HT
voltage for each unit. Can be used with either unit
individually or both together. Outputs are via new, low
impedance, multi-way sockets - plugs and umbilical cables
supplied.
Now with new, optimised, PCB design with full Star Earthing
and supplied with Ultra Fast, Low Noise, Schottky Heater
Diodes.
External dimensions with valves: W135 x D310 x H80mm.
Weight: 1.5kg
Standard kit:
£299.00 (Built and Tested £379.00) |
