I agree with most of the responses here on the comparison between the SHL5+ and M30.2 which have been rather accurate. I listened to the SHL5+ and M30.1 and M30.2 side by side at the dealers late last year and earlier this year. As usual, a lot will depend on listening preferences. I will always pick the SHL5 Plus over the M30 series anytime, be it the original M30, 30.1 or 30.2. About 8 or 9 years ago when I bought my first Harbeth, I compared all M30, SHL5 (non-Plus back then) and the C7ES3. The M30 was pushed aside after the first listen and I was left comparing the C7ES3 and SHL5 back and forth several times before I decided on the speaker to purchase.
Back to the thread, the M30.2 surely sounds different from the SHL5+. It’s not just a smaller box with reduced scale and bass response. The overall presentation of the two speakers is different. The M30.1/M30.2 has the small studio sound with a more controlled presentation. Due to this trait, it does not have the airiness of the SHL5+. The SHL5+ sounds airier and more open than the M30.2. The M30.2 is a warmer sounding speaker and sounds slightly shut-in than the SHL5+. It’s not exactly a criticism toward the M30.2 as folks who prefer a warmer and controlled sound will like the M30.2 better. The M30.2 sounds more glorious with vocals but the SHL5+ is a more balanced and versatile speaker to me. Case in point, the M30.2 may sound great with vocals and jazz but not very good with pop and rock. The SHL5+ sounds equally good with pop and rock. And yes, the bass of the SHL5+ goes deeper and sounds fuller and more complete than the M30.2.
Back to the thread, the M30.2 surely sounds different from the SHL5+. It’s not just a smaller box with reduced scale and bass response. The overall presentation of the two speakers is different. The M30.1/M30.2 has the small studio sound with a more controlled presentation. Due to this trait, it does not have the airiness of the SHL5+. The SHL5+ sounds airier and more open than the M30.2. The M30.2 is a warmer sounding speaker and sounds slightly shut-in than the SHL5+. It’s not exactly a criticism toward the M30.2 as folks who prefer a warmer and controlled sound will like the M30.2 better. The M30.2 sounds more glorious with vocals but the SHL5+ is a more balanced and versatile speaker to me. Case in point, the M30.2 may sound great with vocals and jazz but not very good with pop and rock. The SHL5+ sounds equally good with pop and rock. And yes, the bass of the SHL5+ goes deeper and sounds fuller and more complete than the M30.2.