A Layman's Guide to Multi-Zone Amplifier

Multi-Zone Audio Systems are agnate to a lot of stereo systems. They charge a pre-amplifier and a ability amplifier to action the audio.
The pre-amps date can be disconnected into three parts:
1. An ascribe selector - for selecting the basic you ambition to accept to
2. A pre-amplifier to acclimatize volume
3. An blaster to accommodate accent controls (from bass to treble)
Speaker Wiring
When base speakers to the amplifier, two means are accessible to wire assorted apostle pairs that are committed to one zone. They are "parallel" or "series".
When you plan to abode your speakers throughout your home, the best base action should be to wire the apostle brace in "parallel". If a apostle is damaged, the actual speakers would still abide to function.
On addition note, if you active your speakers in "series", a damaged apostle would arrest the arresting aisle and thereby could cause added speakers on that band to stop playing.
Impedance Loads
Most stereo amplifier is abiding amid 8 Ohms and 4 Ohms. This adherence ambit is aswell accepted as the amplifier's impedance level. "Impedance" refers to the attrition in which the amplifier can bear.
Most speakers accept an impedance of 8 Ohms, 6 Ohms, or 4 Ohms. If your amplifier is abiding to an impedance akin of 4 Ohms, you could affix one brace of 4 Ohms speakers to it or two pairs of 8 Ohms apostle in parallel.
As speakers are added to alongside base schemes, the impedance on the amplifier drops. The added speakers connected, the lower the impedance.
If the speaker's impedance amount is beneath that of the ability amplifiers, the amplifier will ache accident over time.
1/(Total Impedance) = 1/(Speaker 1's Ohm) + 1/(Speaker 2's Ohm) +...+ 1/(Speaker's r's Ohm)
an archetype below:
1/(6 Ohms) + 1/(6 Ohms) = 1/6 + 1/6 = 2/6 = 1/3 (3 Ohms is the absolute impedance)