Speaker Measurements
CLIO Analysis — February 2026
About These Measurements
These are gated measurements — a time window isolates the speaker's direct sound before room reflections reach the microphone, yielding anechoic-quality data without requiring an anechoic chamber. The tradeoff is frequency resolution: the short gate window (~4ms) cannot resolve wavelengths below approximately 200Hz, which is why the frequency response plots begin there. Low-frequency behavior is characterized separately via near-field techniques.
On-Axis Frequency Response
Plot 1 — On Axis
MLS frequency response measured on-axis at 1 meter. 1/3 octave smoothing, 48kHz sample rate. Flat response from 200Hz to 15kHz with gentle rolloff above.
Off-Axis Dispersion
Plot 2 — Horizontal Off-Axis
Horizontal dispersion family at multiple off-axis angles. Shows controlled narrowing at high frequencies with smooth power response.
Plot 3 — Vertical Off-Axis
Vertical dispersion family. Tighter vertical pattern ensures consistent tonal balance within the listening window.
Crossover & Impedance
Plot 4 — Crossover
Individual driver responses showing crossover integration. Clean acoustic summation through the transition region.
Plot 5 — Impedance
Impedance curve measured via sinusoidal sweep. Dual impedance peaks visible with minimum impedance staying above safe amplifier loading thresholds.
Cumulative Spectral Decay
Plot 6 — Waterfall
Cumulative spectral decay (waterfall) showing energy storage and decay characteristics. Clean decay with minimal resonances — indicating well-damped cabinet and driver behavior.
Dimensions
Arcus Dimensions — With Stand
Front and side views showing cabinet and stand dimensions. Overall height 40.8" on stand, cabinet 17" tall × 10" wide × 12" deep, stand base 17.25" × 19.4".
Measurements by Danny Richie · GR Research — CLIO System — Feb 2026