Ascend CBM, HTM and CMT Generations: Every Model Compared

Last updated: October 9, 2026

The Ascend CBM, HTM and CMT line on Speaker Ranking spans 2 generations and 5 models, from the Ascend Acoustics CBM-170 SE and Ascend Acoustics CMT-340 SE Center to the Ascend Acoustics CBM-170 SE2, Ascend Acoustics HTM-200SE2 and Ascend Acoustics CMT-340 SE2. Ratings run from 2.1/5 to 4.4/5. Of these, 3 are still sold.

Each column below is one generation, oldest on the left. Each row follows one model into the model that replaced it; a long arrow means a model skipped a generation. Ratings are out of 5, and an estimated rating comes from measured models in the same family.

More from this brand: every Ascend Acoustics speaker ranked.

Generation by generation

CBM-170 SE to CBM-170 SE2

The Ascend Acoustics CBM-170 SE2 replaced the Ascend Acoustics CBM-170 SE. It rates higher, 3.8/5 against 2.1/5.

Spec CBM-170 SE CBM-170 SE2
Drivers 6.5” proprietary composite polygel cone woofer, 27mm custom SEAS soft dome tweeter 27mm custom SEAS soft dome tweeter, 6.5” proprietary composite polygel cone woofer
Sensitivity 91dB 86.8dB
Bass Extension (-3dB) approx. 80Hz 70Hz
Weight 14 lbs (6.35 kg) each 15 lbs (6.8 kg) each

CMT-340 SE Center to CMT-340 SE2

The Ascend Acoustics CMT-340 SE2 replaced the Ascend Acoustics CMT-340 SE Center. It rates higher, 4.4/5 against 3.7/5.

Spec CMT-340 SE Center CMT-340 SE2
Drivers 27mm SEAS soft dome tweeter, 2x 6.5” long-throw polygel woofers Two 6.5-inch woofers; 27mm soft-dome tweeter
Sensitivity 90dB anechoic 92dB at 2.83V/1m anechoic
Bass Extension (-3dB) 85.7Hz 77.6Hz
Weight 26 lbs (11.8 kg) 29.1 lbs (13.2 kg) each

Frequently Asked Questions

How many generations of the Ascend CBM, HTM and CMT are there?

Speaker Ranking covers 2 generations of the Ascend CBM, HTM and CMT, from the Ascend Acoustics CBM-170 SE and Ascend Acoustics CMT-340 SE Center to the Ascend Acoustics CBM-170 SE2, Ascend Acoustics HTM-200SE2 and Ascend Acoustics CMT-340 SE2.

What replaced the Ascend Acoustics CBM-170 SE?

The Ascend Acoustics CBM-170 SE2 replaced the Ascend Acoustics CBM-170 SE. It is rated 3.8/5, against 2.1/5 for the Ascend Acoustics CBM-170 SE.

What replaced the Ascend Acoustics CMT-340 SE Center?

The Ascend Acoustics CMT-340 SE2 replaced the Ascend Acoustics CMT-340 SE Center. It is rated 4.4/5, against 3.7/5 for the Ascend Acoustics CMT-340 SE Center.