• 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.

For Sale Holton Audio Amp Kit - Unused

Things you have for sale.
Hello,

Up for sale are a complete (no chassis) kit of parts to construct a Holton Audio 300W amp. Parts include:

(2) HPA-NXL500 Amplifier modules configured by Anthony as 250-300W amps with 4 mosfets each channel
(2) HPA-NXVPSU Power Supply PCBs without filter capacitors
(1) AC Mains Controller
(2) Speaker Protection PCBs
(2) Toroidy Audio Supreme 300VA 230V primary and 2x45V secondary with mounting plates

Asking EUR 600 for the lot.

IMG_3599.jpg


IMG_3600.jpg


I purchased these late 2020 with better intentions. The parts have remained packed as received - not modified, installed or used in any way.

Located in Germany. Buyer pays actual shipping costs in addition.


Best,
Mike
 
Mike, out of curiosity: why are the NXL500’s configured with 4 mosfets instead of 8? (NXL300?)


I am using a previous version and these Holton amps are among the best amps I ever heard!
Hi,

When I purchased I was interested in the NXL300 but Anthony did not have any in stock. So he offered to build a 300W version on the NXL500 pcb. He supplied it this way complete. Was not a modification made by myself or anyone else.

If anything it should improve performance by spreading heat dissipation over a large heat sink area.

Best,
Mike