Speaker efficiency - theoretical question
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So, I've always liked music - both playing and listening to music. My first system was simply Mission speakers/Rotel amp/Philips CD. Then I left that with my parents when I took off for college. After college I got PSB T45/Thule Amp/Thule CD - which I was generally happy with.
Then a combination of moving country and wife not being particularly thrilled about the relative size of the T45's in our then not-so-big apartment made me sell the whole thing.
Anyone hire a welder to make speaker stands for them?
I am considering this route because shipping to HI is so expensive if I buy nice stands from the mainland.
I figure I can give the dimensions of the top/bottom plates and some kind of column (box or circular) to a welder and have them craft it. I will probably also ask for a hole to be cut out in the rear of column to fill with sand for added mass. Then I will spray paint the stands black.
Should the top plate dimensions be larger than the speaker dimensions, less, or fit the speaker exactly?
OK, I got the SET bug.
Today's the day I hook up my new SET 2A3c amp.
The amp is three watts per channel, well, four with 10% THD.
I'll be using it with some Apogee ribbons. The Apogee dips to one ohm resistance, and is 86dB 'sensitive.'
So, if 1 watt gives me 86 dB, but the amp output doubles its output with every halving of the resistance, then...
My four watt amp should give me 8 watts at four ohms, 16 watts at two ohms, and 32 watts at one ohm.
Therefore...
Hola,
I decided to finally take the plunge and biamp my Lowther DX-3's.
I went out and overspent on a new SET using genuine Western Eclectic 300B's, but now I can't for the life of me find where the tweeter hook ups are on the damned speaker.
I mean, I can find the main speaker hook up, and it looks almost like to goes right the the back of the speaker cone...but I can't find where the woofer and tweeter part diverge so I can hook up the two amps.
A little help?
So we've all studied the interesting graphics of the off-axis dispersion of a speaker. Performance can vary. It made me wonder about a somewhat theoretical question, though the issue that raised it was a practical one.
Suppose you have two speaker models. Both measure the same efficiency [edit: as measured by sensitivity] under standard testing (at a fixed point, x distance away, for a given power input). But one has better off axis response. (Let's assume it's true horizontally and vertically, as well as at various frequencies, etc.)