Дополню: Пришел ответ от западного эксперта. Жаль, картинки потерялись. На них он соединил клемы по HF и LF между собой и пустил по одному каналу до 4 омного разъема в усилителе.

https://www.avforums.com/threads/technic...t-24034055

It doesn't quite work that way. No matter how many connections is might have 2 or 20, it is still a Stereo Amp with only TWO Amp Channels.

If your speaker are 4 ohms, then no matter how many wires you add to them for connection, they are still 4 ohms speakers.

Most amps, this being one of them, can operate within a limited range of impedance, and that is 4 ohms to 16 ohms. That's not the impedance of a given speaker, that is the total load presented to the amp channel, whether one or nine speakers.

Most speakers are 8 ohms, so if you have two pair of 8 ohm speakers connected to the amp, then their combined impedance is 4 ohms. That is the limit of the amp.

But again, it is not about individual speakers, it is about the total per channel load presented to the amp. That can be in the range of 4 ohms to 16 ohms.

In you case, your speakers are already 4 ohms, so the best you can do is one speaker on each amp channel.

What you are doing is called Bi-Wiring, one amp, two wires, one speaker. Most feel this makes no difference.

However, you do need to bridge between the Lower Terminal on the speaker (bass) and the Upper Terminals (Mid/High). I did this with a short section of wire and some Ring Terminals.

Here is the wire with the Ring Terminals attached -

[​IMG]

And here they are attached to the speakers -

[​IMG]

In my case, that jumper is on the speakers; in your case, the jumper is simply back at the amp.