#Elac debut 2.0 series
#Elac debut 2.0 free

However, there is a discontinuity in the port's rolloff, as well as a small glitch in the woofer's output, at the frequency of the strong panel resonance.

#Elac debut 2.0 free

(The port resonance holds the woofer stationary at its tuning frequency.) The port's own output (red trace) peaks between 35 and 70Hz, and its upper-frequency rollout is free from high-level resonant modes. This is confirmed by the nearfield measurement of the woofer's response (fig.3, blue trace), which has a sharply defined notch at that frequency. The saddle centered on 48Hz in the impedance magnitude trace in fig.1 suggests that this is the tuning frequency of the flared port on the cabinet's rear panel. Herb Reichert commented that the B6 'seems to like tubes.' Indeed it does, and the shape of the solid impedance trace in this graph does suggest that the speaker's treble will be a little higher in level when connected to a tube amplifier's 8 ohm taps (again, see later).ДЇig.2 Elac Debut B6, cumulative spectral-decay plot calculated from output of accelerometer fastened to center of top panel (MLS driving voltage to speaker, 7.55V measurement bandwidth, 2kHz). With a minimum value of 6 ohms at 190Hz and an electrical phase angle that is high only when the impedance magnitude is also high, this will be a very easy load for the partnering amplifier to drive. I have plotted how the Elac's impedance varies with frequency on a more extended vertical scale than usual (fig.1), as the magnitude remains above my usual 20-ohm scale limit for the entire treble region. I suspect that this difference is due to the B6's behavior in the top octaves (see later). My estimate of the Elac B6's voltage sensitivity was 85dB/2.83V/m, which is 2dB below the specified 87dB/2.83V/m.

Lunarable Forest Foldable Mattress Doodle Herbs Pattern on Dark 78.7 x 47.I used DRA Labs' MLSSA system and a calibrated DPA 4006 microphone to measure the Elac Debut B6's frequency response in the farfield for the nearfield frequency response, I used an Earthworks QTC-40, which has a Вј' capsule and thus doesn't present a significant obstacle to the sound.

#Elac debut 2.0 series

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