Some or all Variants are In-Stock
In Stock and Ready to Ship
Ships in 1 to 3 business days. Monday to Friday, except bank holidays. Subject to stock availability and security checks.
- [Pre-owned] ZMF Caldera Open Redwood Burl Ltd
[Pre-owned] ZMF Caldera Open Redwood Burl Ltd
300 ohm Bio-cellulose Closed Back Headphones
- Revised ADS for proprietary drivers
- It comes with a hard case and cable
VAT and Duties Included for UK and Eligible EU Customers.
If you are outside the UK or EU, the price does not include any taxes. Local taxes and import duties will be extra. They will be raised by the local authorities and billed directly to the customer.
VAT and Import Taxes FAQ
[Pre-owned] ZMF Caldera Open Redwood Burl Ltd
The Process of Making Caldera
After modding, breaking, and completing hundreds of Fostex t50rp mods over the years I spent a lot of time staring at planar drivers. I tried experimenting to make the drivers sound effortless, dynamic and resolving. When modding though, I was always starting backwards, reverse engineering a driver someone else created.
I dreamt of making my own “from scratch” planar driver when ZMF transitioned to dynamic driver headphones, but with so many amazing planar’s out, I didn’t want to be reductive, or redundant. After a lot of failed experiments, and over 6 years of trying, the Caldera driver, CAMS (Caldera Asymmetrical Magnet Structure), and Atrium Damping System; the magic of ZMF’s proprietary planar technology has been born.

Technical specifications
No technical specifications available.
Shipping and Returns
RETURNS
Elise Audio has a standard 14-day return / exchange policy for electronic products (DAC/DAP):
- Must be returned in like-new factory condition
- Must include all original packaging and accessories
Please note that the return shipping cost is to be paid by the customer.
Read our full Returns, Warranty & Terms of service by clicking here
SHIPPING
We offer a range of delivery options to suit your purchasing needs. The options are presented to you at the checkout, in an easy to understand way.
Most orders for In-Stock items are shipped within 1 to 3 business days (Monday to Friday, except bank holidays), subject to stock availability and security checks. Please ensure you provide a valid phone number for us to contact you should verification of your identity be required.
For More information about our Shipping Policy please click here
Warranty
The Process of Making Caldera
After modding, breaking, and completing hundreds of Fostex t50rp mods over the years I spent a lot of time staring at planar drivers. I tried experimenting to make the drivers sound effortless, dynamic and resolving. When modding though, I was always starting backwards, reverse engineering a driver someone else created.
I dreamt of making my own “from scratch” planar driver when ZMF transitioned to dynamic driver headphones, but with so many amazing planar’s out, I didn’t want to be reductive, or redundant. After a lot of failed experiments, and over 6 years of trying, the Caldera driver, CAMS (Caldera Asymmetrical Magnet Structure), and Atrium Damping System; the magic of ZMF’s proprietary planar technology has been born.

RETURNS
Elise Audio has a standard 14-day return / exchange policy for electronic products (DAC/DAP):
- Must be returned in like-new factory condition
- Must include all original packaging and accessories
Please note that the return shipping cost is to be paid by the customer.
Read our full Returns, Warranty & Terms of service by clicking here
SHIPPING
We offer a range of delivery options to suit your purchasing needs. The options are presented to you at the checkout, in an easy to understand way.
Most orders for In-Stock items are shipped within 1 to 3 business days (Monday to Friday, except bank holidays), subject to stock availability and security checks. Please ensure you provide a valid phone number for us to contact you should verification of your identity be required.
For More information about our Shipping Policy please click here