MoFi Sourcepoint 8 or Q Acoustice Concept 50s

Op, Crutchfield has a scratch-and-dent pair available. They claim their S&D items are usually in decent condition. The holiday extended return period is already in effect.

Extremely high impedance peaks like that can often be well addressed by a high value resistor in parallel with the inputs

I hope you know what you are talking about here. A “high-value” parallel resistor — say, 100 Ω — won’t effectively flatten an impedance peak that high. The resulting impedance would still be around 43 Ω, based on 1/(1/75 + 1/100). That peak wouldn’t come close to the nominal impedance until a much lower value, such as 10 Ω, is used — which yields 1/(1/75 + 1/10) = 8.8 Ω.

Also, there is a downside of using a single parallel resistor, i.e., it affects the entire impedance spectrum, not just the peak. Even the region already near nominal impedance would drop — for example, 1/(1/8 + 1/10) = 4.4 Ω — effectively turning an easy-to-drive speaker into a more demanding one.

If the goal is to address only the impedance rise around 2 kHz (as MoFi did with the SP-10 ME), a more refined approach is required. I’d be happy to explain how that can be done if you could not figure that out, ’Engineer.’

@lanx0003 I contacted Crutchfield about the Concept 50 last month and the scratch and dent is actually  a single unit - the only one they have remaining.  There is also a dealer in the UK that has a single unit listed on Ebay.

So you’re on the hunt for a new pair of speakers and you’re down to a choice of two.  Suggest you buy both from a dealer or retailer that will let you buy and try and return one set for free or for a nominal fee.  A/B test them in your room with your equipment playing the music you love.  Keep the pair you like best and return the other.  The only way to know for sure and not have buyers remorse or FOMO in my experience.  Happy hunting!  

@maam522a, I held off making a recommendation but my recent experience may be useful.

I’ve been in this hobby for decades and have churned through a wide variety of components.  After moving (ie a new room), my system, while of very good quality, didn’t adapt well.  Also, each component was separate (including mono blocs) and I wanted to simplify.

So I started with speakers.  I certainly agree with auditioning before buying but that was difficult with the general decline in brick and mortar stores plus moving to a much smaller community with only one quality audio dealer.  That meant reviewing owner reports as well as reading reviews.  From that my short list included OHM so I took advantage of their factory return policy and ordered a pair to audition.  Unfortunately they didn’t adapt to my room well either so I returned them.  Great folks though.  Then I saw a flurry of reviews for the new MoFi SP 888.  I had heard earlier models designed by Andrew Jones, plus I had listening experience with concentric drivers in Tannoy models.  Fortunately Crutchfield has a 60-day return, so I felt confident and ordered a pair.

The longer I’ve listened to the MoFis the more I enjoy them.  They give a warmish musical presentation.  Without going through the audiophile list of descriptive terms I can just say they are greatly satisfying.  Good recordings of small groups can sound like the performer(s) are in the room.  Larger musician groups, where that is not realistic, still offer a decent live simulation.  I also changed to an integrated amp with 90 WPC which is fully adequate in my 28x19x10 room.  This is mainly with jazz, classical, and classic rock.

So good luck in your search.