All products are manufactured to order with a 60% non-refundable up-front deposit.
Turnaround time can vary due to numerous factors and is approximately 6 - 8 weeks.
A selection of upgrades are also currently available for each product.
Please see the Upgrade Options listed below for more details.
For further details on price structure and how to take your order further,
Please send your enquiries to ghansen@zsd
Option 1 - NOS valves, Transformer and selected caps
Option 2 - Esoteric Output Caps
Option 3 - Extra MM input with selector switch
This upgrade must be ordered with the initial order of this product - NOT available as an after-market upgrade.
Option 1 - NOS valves, Transformer and selected caps
Option 2 - Esoteric Output Caps
Option 3 - External remote control for volume control only
Option 1 - Selected resistors
Option 2 - Esoteric Signal Capacitors