Speaker System

Wondering what to keep in mind when shopping for a speaker system? We connect with an AV expert to discover which features matter and which don’t.

Shopping for a speaker system? Then you’re no doubt wondering which features are worth the money, and which are pure marketing hype. We put the question to Dennis Erskine of The Erskine Group, an expert in audio and architectural acoustics to get the scoop. Here is his advice:


Q: Lots of features are promoted by speaker companies as important items to consider making your purchase – which ones are valuable, and which should be discounted entirely?

A: In general there is not a lot of worthwhile information being provided by speaker manufacturers within the consumer marketplace. While physical dimensions and weight have some value, the real information that matters is not or will not be provided. A perusal of speaker websites will find such terms as “unprecedented accuracy,” “pristine reproduction of the most complex musical passages,” and similar glittering generalities. Among the specifications, I find that most consumers are confused by statements such as “capable of 500 watts.” While I doubt the veracity in some cases, the consumer is often mislead (not intentionally) into thinking the speaker requires 500 watts. In the speaker world, the two biggest BS statements to watch out for are:

• That you can mix and match any speaker from within a broad product group and they will blend perfectly.

• The horizontally oriented center channel speaker will exactly timbre match with vertically oriented left and right speakers.

In both cases, there are a few laws of physics that would need to be set aside for this to be true.

Another problem I have is with the term “Reference Quality” or “Reference Speakers.” What does it mean? Referenced to what? Whose reference? Is Brand X’s “reference” the same as Brand Y’s “reference?” What’s the minimum performance level required to achieve “reference?” The only outfit I know of measuring speakers to determine if they really meet some level of performance is THX.


Q: Two subwoofers are better than one: True or False?

A: True. Two subs are always better than one and, in many cases, four are preferred. The use of multiple subwoofers is not to ramp up the boom of low-frequency effects, but rather to provide a consistent bass response in the seating area.

Showing 2 comments

  1. T.Rowe at 3:31am 3rd February 2010 I have a 80s LUXMAN L530 15w A 120W B (before ALPINE) its no ordinary 120 watt amp. turn on speker B and nothing hapens to speker A god bless hight current amps.(big caps)
  2. bradypatterson at 9:06am 21st December 2009 There's just as much confusion around amplifiers and power claims. Buyers should note that when it comes to manufacturer claims, all watts are not equal. Besides that, amplifiers don't make watts, they make volts. The number of watts is only determined when a load is placed across the voltage, and current flows between the terminals.

    Consider two amplifiers:

    1) A 50-watt rated amp that can actually deliver 57 watts continuous into 8 ohms, or maybe 75 watts (peak) for half a second or less, and shuts itself down when connected to anything less than a 6 ohm load.

    2) A 50-watt rated amp that can deliver 57 watts continuous into 8 ohms, or 200 watts (peak) for half a second, or can also deliver 100 watts continous into 4 ohms, and 200 watts continuous into 2 ohms. It also has peak power reserves able to deliver 400 watts (into 4 ohms) and 800 watts (2 ohms), for half a second.

    Both are "50 watt amps". Are they equal? Given the nature of music, and speakers, the second amp is far more capable! Unfortunately, most consumer amps are of the former variety. I happen to own a Proton AA-1150 (from the 1990's) which is more-or-less the latter. It's no ordinary 50 watt amp.
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