A good place to look would be the Harbeth Usergroup on Harbeth's website. Alan Shaw, the owner participates in the forums. That question has undoubtedly been answered there already
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In the Harbeth User's Group, regarding the new C7ES3 vs the C7ES2, Alan Shaw states:
"I think the differences between the C7ES2 and C7ES3 have been documented here or on the main Harbeth web site ....
C7ES3 has ....
1. A new woofer
2. A new tweeter
3. A new crossover
4. Revisions to the cabinet damping arrangement that would be difficult to retro-fit to ES2 cabinets
5. Longer ports
6. Single wire, not bi-wire terminals
A Compact 7ES3 is the sum of all these parts and any lesser combination is not, technically a Compact 7ES3. At this time, and especially because of item 4 above, there is no upgrade path and we do not want to have a half-way situation between C7ES2 and 3 whereby 1, 2, 3, and 5 are upgraded but not item 4 (the cabinet)."
Based on the above, the C7ES2 and C7ES3 woofers are not identical.
Somebody's fibbing somewhere.....
the 7-2's and 7-3's are somewhat close in overall sound, but the 7-3's have tighter, deeper bass, overall clarity is way up, more detail. If you can find a nicely priced 7-2, not one that has been messed with, you'll be very happy.
I can't imagine the said speaker working properly, different crossover, etc.....I'd pass if I were you.
Personally I would pass on a speaker that has been modified, especially by third parties. Similarly like Chashas1, I would pick an original C7ES2 over a modified speaker. You wouldn't know the quality of workmanship of the modified speaker and the true performance of the originally designed speaker.
I've heard both. I favor the 7-ES2. Even though they are older, I feel the sound is more accurate, with zero listening fatigue and midrange to die for. The 7-ES3 is great too, but perhaps is adding some coloration in the lower frequencies. Both generations are examples of how fine, monitor-style loudspeakers should be engineered. If you have superior recordings in your collection of music, you will want to listen all day long.
Agree with Nolitan. However, if you love your present gear and stands, and the 7's are working great in your present room, I could easily see trading up to the 7-3's... The increase in clarity, bass extension and tightness would definitely pay for itself in the long term. And definitely have a great stand for either- skylans or Wayne Taylor's.
They are noticeably better than the 7-2's.
"Accurate" is highly subjective .
I'm wondering if posting to these old threads will generate a response? at any rate, , here goes. What about having the choice to buy either a 7-2 or 7-3 used and being I've yet to have Harbeth and this would be my first purchase I am inclined to go for the latest iteration with hoped for overall improvements .