Loudspeaker Designs and Articles for the DIY Enthusiast
Jim Holtz's:

Statement II performance
in a smaller, more cost
effective package?
You be the judge...
Major specifications

An 3 way MTMWW vented design featuring Dayton RS225-8 aluminum cone woofers, the The Seas 22TFF fabric dome tweeter, and the SB Acoustics SB15
coated paper
driver drivers housed in an open back cylindrical enclosures.  

Nominal Impedance: I'll call this one 6 ohms as the impedance curve has a 4 ohm minima at 80 Hz, but like the Finalists, spends more time above 6 ohms
as it does below. The minima is 4.3 ohms at
20 Hz, and again dips below 5 ohms between 50 and 120 Hz, but then spends the rest of its time above 5.5
at higher frequencies. The worst amplifier load is 5.6 ohms and -25 degrees at 58 Hz. This suggests an easy load for any reputable 6 ohm rated

Dimensions: external: 11" wide, 24" tall, 15.5" deep

Basic Sensitivity: Approximately 87 dB / 2.83v / 1 meter  

Max SPL: (Modeled at woofer published Xmax) 110 dB / 1meter
Main / Design Goals

Jim: The design goal I established for this project was to come as close as possible to the full sized Statements II in overall performance but lower costs and
offer a different driver configuration that would allow a less imposing cabinet for better WAF. I had no interest in designing yet another Statements variation
but rather establish a new design that offers top notch performance through careful driver selection with low distortion, excellent midrange for all types of
music and exceptional dynamic range for home theater use.

Links to:

Main / Design Goals

Driver Selection

Cabinet Construction

Crossover Design


Listening Impressions