• The swap meet forum is for private non-commercial transactions. Only unmoderated members can post here.

    diyAudio provides this forum for the convenience of our members, but makes no warranty nor assumes any responsibility. We do not vet any members. Use of this facility is at your own risk. Customers can post any issues in those threads as long as it is done in a civil manner. All diyAudio rules about conduct apply and will be enforced.

FSC: Rod Elliot preamplifier

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
The preamp is great sound, selling for AUD $790, with a very detailed sound, free of grain, totally quiet and ease of use. Rod Elliot intended the design to match with Zen Nelson Pass power amps. Build construction is very high quality, heavy duty 8kg case, quality parts and finish is well above commercial class standard.

This is a custom built solid state preamplifier implementing a Elliott Sound Products (ESP) design. It is a very simple and effective class-A design described in details here: Minimalist Discrete Hi-Fi Preamp

The original circuit is built with fresh new parts supported by the following:

- 2x R-core transformers, one for the pre-amp board the other for everything else
- 3 separate regulated power supplies for powering pre-amp board, input and output switching boards and volume control circuit
- Relay input switching board, output turn-on delay (programmable) and muting relay board
- Twisted Pear Audio Joshua Tree relay driven volume control driven by a digital encoder (Joshua Tree - A Twisted Log Attenuator)
- Filtered AC input
- 230V electric power mains
- CNC machined black anodised aluminium box.
- A lot of love and care invested in building this amp with the overall value of parts being north of AUD $1500
 

Attachments

  • 5795A55E-7AA1-43A2-B0B5-39D0A776FD95.jpeg
    5795A55E-7AA1-43A2-B0B5-39D0A776FD95.jpeg
    100.8 KB · Views: 250
  • 2CEDBA60-9400-4F8B-95BE-378E6AEA92CD.jpeg
    2CEDBA60-9400-4F8B-95BE-378E6AEA92CD.jpeg
    200.7 KB · Views: 256
  • D3930E5F-5602-4DCE-9D74-8E0C2B0245F5.jpeg
    D3930E5F-5602-4DCE-9D74-8E0C2B0245F5.jpeg
    88 KB · Views: 252
Last edited:
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.