how to connect 2 Atrium 8 speakers so each have L&R channels going to them
tniolu
Posts: 4
Answers
-
Are they the Atrium 8 SDI speakers?
-
yes.
-
From the owners manual:
I believe there is a selector switch near where the speaker wire is connected.
-
I understand this. However, I want to use 2 speakers with both L+R going to each speaker. The amp is rated to support 6-16ohm impedance. Question is what will this load present to the amp? This connection should be possible if impedance does not go out of range.
-
It should be a 4 ohm load, each speaker is 8 ohms. They each have two voice coils on the driver and two tweeters so they don't interact to change the impedance. Just think of a pair of speakers sharing the same driver cone and cabinet, still 8 ohms.
-
Then the configuration I want won't work. The resulting 4Ω impedance will cause the amp to be overdriven. I wonder if the following configuration, a series configuration, is possible? This would give me 16Ω, within the amps range.
-
In very general terms speakers don't sound very good when connected in series. Individual speaker components, such as woofers or tweeters, can be connected in series, but once a speaker system is put together a series connection isn't sonically advisable.
If you need a 6 ohm load impedance add a 2 ohm 10/15 watt resistor in series with the positive wire in your parallel connection. This is what happens inside speaker selector control boxes that have "impedance matching". -
I hope post is not too old.
Isn’t my risk of over driving the amp quite minimal at low volumes?
I want to add a second Atrium 8 speaker, too far from my existing one for traditional L/R listening, so wiring both in “single hookup” mode using the first wiring diagram in this post (not in series).
My modest Sony amp is 2ch supporting A/B, impedance: 6–16 ohms switchable, 100 W + 100 W (8 ohms, 1 kHz, THD 1% (peak not given).
I understand that this wiring results in nominal 4 ohm, but I understand (barely) “nominal” impedance as a variable concept that manufacturers tend to estimate conservatively. Although it’s “variables” plural -- at <=50% volume always, isn’t my danger of burning the amp very unlikely?
