Omron G2Z-222P-US replacement

New 70µm copper adapter board v.1.1. now in stock!

Prices in Euro €:
G2R>G2Z Adapter board “DIY” with solder pins: €5.
G2R>G2Z Adapter board with Omron G2R 8A sealed relay fitted and tested (ready to install): €32.

Postage/shipping to Europe or North America:
Adapter boards “DIY”: 5€. (up to 10 boards in one letter)
Adapter boards with Omron relay: 15€. (up to 4 units in one package)

Relay units will be sent as first class registered letter, and will be well packaged as to arrive in good shape.

Ordering and payment:
Please send your order via email to, or just write in the Paypal comment field what you need. Make sure to specify if you need 12VDC or 24VDC relays! Check what is printed on the original relays.

Payment: Paypal, to the same email address.

Betaling for DK ordrer: Bankoverførsel eller MobilePay (Brug venligst ikke Paypal). Se også her.

Background and details:
In many amplifiers from the ’80s, the Omron G2Z-222P-US is used as loudspeaker relay. Some in 12V and some in 24V model, but it is the same type relay. Problem is that these Omron relays are obsolete, and thus no longer available.

As a solution to this, I have made an adapter board, which makes it possible to fit a modern type Omron G2R relay as replacement. It is a small doublesided PCB, with same footprint as the original relay.

November 2018: The adapter boards are now V.1.1, with optimized layout and 70 µm copper layer, for highest performance.

On the topside, it matches the new Omron G2R type relay, and on the bottom side, it matches up with the old Omron G2Z-222P-US pin-out. Solder pins are fitted from the bottom side, where it mounts to the amplifier PCB:

These fit all amplifiers which originally has the Omron G2Z-222P-US relays. This includes:

– Luxman LV-105
– Luxman L-435
– Luxman M-02
– Braun Atelier A1 og A2.
– Sansui AU-D5
– Kenwood L-1000M
and many others..

You can purchase the adapter boards seperately, or a complete new relay unit ready to install in your amplifier. I use high quality sealed Omron G2R 8A relays, which is a good replacement for the original relays used, and will likely last longer.

If questions, then ask.


  • Michail Barouchos

    Is this the same size with the original?
    Because on the left and right are two coils.
    I have the lv 105u.
    Thank you

    • Jonas - Post author

      Yes, the adapter PCB doesn’t take up more space then the original relay, so there are no problems with other components close by.

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