Audio FAQ
The most Frequently Asked Questions about BE Audio Products
* This page will continue to grow over time *
Table of Contents
- How do I choose the right volume control for my application?
- Why do you use autoformers in your volume controls?
- How much power will the VC-J8 junction box handle?
- How many pairs of speakers can I put on one volume control?
- Question 5
How do I choose the right volume control for my application?
Choosing the right volume control for your application is important. In single listening zone systems the right VC can save money by using a lower power audio amplifier and in multi listening zone systems the right VC can eliminate the risk of damage to expensive high power audio amplifiers.
See audio application note: How to Select the Right Volume Control.
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Why do you use autoformers in your volume controls?
Autoformers have a lively, almost transparent sound quality, they sound noticeably better than regular transformers, L-pads, and resistive volume control designs.
Autoformers also minimize power loss and heat dissipation.
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How much power will the VC-J8 junction box handle?
More power than the 1-8 volume controls connected to it will need.
Each volume control is rated at 50W continuous per channel (or 150W music power) so eight volume controls combined would be 400W continuous (or 1200W music power). The VC-J8's oversized PCB traces are designed to comfortably handle this much and then some.
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How many pairs of speakers can I put on one volume control?
In-wall volume controls are designed to control a single pair of loudspeakers, not multiple pairs.
The automatic impedance protection chart (on the installation sheet) shows how many volume controls, each controlling one pair of loudspeakers, can be connected to a single amplifier. Speaker pairs are referenced instead of volume controls because this has become standard industry notation.
The number of impedance protected volume controls that can be connected to an amplifier depends on the loudspeaker impedance (4-8 ohm) and the minimum load impedance the amplifier is capable of driving (1-8 ohm).
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Question 5
[This is the answer to the question.]
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End of Audio FAQ