Los Numeros

Specifications

Total Power Output: 100 Watts RMS @ 10% THD
Satellite Power Output: 12 Watts RMS per channel
Subwoofer Power Output: 52 Watts RMS
System frequency response: 28Hz - 20kHz
Crossover frequency: 160Hz
Signal to Noise Ratio: 80 dB
Input Sensitivity: 130 mV max
Input Impedance: 10 kOhms
Satellite Dimensions (H x W x D): 152 x 76 x 76 mm each
Subwoofer dimensions (H x W x D): 310 x 190 x 280 mm
System Weight: 14.75 lb (6.7 kg)

Power Supply: AC 90V - 240V (built-in auto switching transformer)
Satellite Driver (per satellite): 57 mm diameter neodymium magnet driver, shielded
Subwoofer Driver: 150 mm diameter driver, magnetically shielded
Signal Input (audio source):
Two 3.5 mm (1/8") stereo mini-connector
One 3.5 mm (1/8") digital 4 channel jack
Signal Output (headphones): 3.5 mm (1/8") stereo mini-connector

Notes

100 watts gives a nice wallop of power, although the 10% distortion is a little high. RMS (root mean square) numbers are the only true measurements of power, it measures the average power of a sine wave, not just the peaks. Once again, we don't have a +/- decibel range for the frequency response numbers. I can tell you that the Xtrusio DSR-100 doesn't put out any useable bass close to 28Hz.

Positives include the use of neodymium magnets which have one of the best magnetic power to mass ratios for speaker design. The multi-voltage auto-switching power supply is great for those who move a lot or for those who want to give the Xtrusio DSR-100's to their friends overseas.

Light Metal

When I tried to describe the aluminum subwoofer to friends, with its curved non-parallel edges and cold to the touch sides, some people thought I was describing a wastebasket. Nothing could be further from the truth, as the aluminum sub really deserves a better display platform than the spot underneath your desk.

The Logitech design incorporates both improved function and design. Rather than sticking to the classic subwoofer cube design, the Logitech subwoofer has an elliptical shape. The shape should prevent any unwanted resonance in the sub and provide a very stiff enclosure, provided the metal is strong enough. If the metal wasn't thick enough, the sub could in theory, turn into a bell or cymbal. That doesn't seem to be the case here, as the Logitech sub is very sturdy.