4 Ohm Load

Mike,

You're welcome. Keep in mind that boosting the bass, via tone controls or an equalizer, will dramatically increase the power demands on the amplifier, also increasing the likelihood that an underpowered amplifier will clip. Although if the boost is modest, and the volume levels are low, you'll probably be ok.

Best regards,
-- Al

Excellent points have been made above. I would add a note of caution about the possibility of clipping the amp and damaging your tweeters as a result.

Stereophile measured your speakers as having a sensitivity of about 87db for 2.83 volts input at 1 meter. Given the 4 ohm nominal impedance, that corresponds to about 84db for 1 watt input, at 1 meter, which is quite low for use with a 27W amplifier.

That is of particular concern if you are listening to material with wide dynamic range, meaning a large difference in volume between the loudest peaks and soft passages. Well recorded classical symphonic music is a good example of that. That will cause you to turn up the volume control much higher than you would for compressed material having narrow dynamic range, resulting in power demand on peaks that greatly exceeds the amp's capability. The resulting distorted, clipped waveform will contain high frequency energy that is not present in the original material, which the speaker's crossover will route to the tweeter.

So I would suggest avoiding material that has wide dynamic range, and being careful to not turn up the volume to the point of audible distortion.

Regards,
-- Al

Hi Magfan,

Your point about the importance of phase angle is certainly a good one. However, the specific issue I was addressing, the possibility that amplifier clipping caused by the relatively low sensitivity of the speaker coupled with the low power rating of the amp might in turn cause tweeter damage, I think would still be a concern even if the speaker were purely resistive, with 0 phase angle at all frequencies.

Best regards,
-- Al