Z-PC5 & Z-PC6 Phono & Line Preamp’s
$79.50
Z-PC5 Line Preamp, Tubes are 12AX7
Gain 12dB
Output Impedance 1.8K
Freq response +/- 0.05dB between 20Hz & 20KHz
Z-PC6 Phono Preamp, Tubes are 12AT7
Gain is 40dB, MM cartridge only
Input Impedance 47K
Freq response +/- 0.15dB of the RIAA curve between 20Hz & 20KHz
Available on backorder
This is the next step up from the original Dynaco circuits. Both the Z-PC6 Phono and Z-PC5 line Preamp's offer vastly improved circuits and performances over the original Dynaco designs, with far superior sound reproduction. The Phono preamp Z-PC6 uses 2x 12AT7's and the line preamp Z-PC5 uses 2x 12AX7's. Quality metal film resistors, film capacitors and ceramic tube sockets are standard with this kit. The PCB's are manufactured to FR4-TG standards with ground planes on both sides to improve screening as well as component screen printing to make assembly easier.
NOTE: the tubes require a 24VDC supply for the filaments, not 6.3V or 12.6VDC!
This Preamp Kit has been designed to be used with our Regulated Power Supply Kits. A standard Dynaco power supply using the PA211 power transformer will not work to power these kits.
A set of assembly instructions is also included. However tubes are not included. Please note that the photos are a general indication, and component colors and style can and will vary.
An important note about using the Z-PC5 & Z-PC6 kits: you will lose the functionality of ALL tone controls, blend, filter and loudness functions. The original selector switch needs to be replaced Z Series Selector Switch The Z-PC5 is a classic line preamp circuit without any of the above functions. Volume control MUST be 100K and balance control MUST be 250K!
The Z-series will also work with most solid state amps, but, there will always be exceptions and we cannot advise which soild state amps may require an impedance matching circuit, as there are just too many variables.
The output impedance of our Z-PC5 line preamp is around 70K and operates best into a high input impedance load.
If you want to retain tone controls using a modern tube circuit, you will need to consider our TCLA tone control kit, Z Series TCLA Tone Control Preamp
