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Wilson Alexia 2 lacking some bass

Hello everyone,

I’m reaching out for advice on fine-tuning my system, as I'm noticing a minor lack of low-end response that seems unusual given the capabilities of my speakers.

Here’s the current setup:

  • Speakers: Wilson Alexia 2, positioned on spikes per the WASP guide
  • Amplification: Nagra HD mono amps
  • Digital Source: DCS Rossini Apex with DCS Rossini Clock
  • Server: Antipodes Oladra
  • Cabling: Shunyata Omega throughout
  • Room Dimensions: Approximately 20 x 15 ft

I’m wondering if the amps may not be the ideal match or if further adjustments to the speaker placement could help resolve this. Any insights would be greatly appreciated.

Thanks in advance

 

greenspyder718
koestner
664 posts
 

Placement is key, but the best bass response might not be the ideal placement for the mids and highs. A sub, or 2 under 50Hz with their own volume control might be the ticket for that last octave to really kick in.

onhwy61's avatar
onhwy61
5,212 posts
 

The minor lack of low end response?  Compared to what?  Using a test frequency track can help pinpoint the exact frequencies involved.  That should be determined before any solution can be attempted.

jond's avatar
jond
5,776 posts
 

+ 1 @onhwy61 and once determined then play around with speaker positioning.

audphile1's avatar
audphile1
4,892 posts
 

Congrats on this excellent system!

As others mentioned, run a frequency test. These speakers should have solid bass. 

Wilson recommendation in a manual for my Sabrina is speaker to listening position should be 1.1 to 1.2 times the distance between speakers (measured between center of tweeters).  That works for me but no two rooms are alike. 
Experiment and see. Walk around the room while test tone is playing to see if you are dealing with a listening position located in a null point

mazian's avatar
mazian
395 posts
 

Like westcoastaudiophile I see no preamplifier. If you are running straight from the DAC to the monos that could be your problem. Maybe look for a high end pre to match what is otherwise an incredibly good system, even if I don't like Wilson speakers.

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