What's a good alternative to Pass Labs?

And your speaker is? Sensitivity? power rating? 2 way/3 way?
average listening level? 8ohm/4ohm?

Give us a little info otherwise your going to get a lot of
answers that do you no good.

You may want to RE-visit the review of these speakers. The reviewer says that they are "shouty" at higher volumes. You may be sensitive to this region of hearing frequency??? I think the perceived bass warmth comes from the transmission line architecture. You just will not get the tight/taught response from the drivers with large surrounds and there is an 8" line/port that helps to reinforce the bass, but causes timing issues with the mid bass drivers which are faster. This may cause you to lose some detail/resolution.

Do you always use the JL subs when listening? (they may be faster or slower than the main drivers). Integration can be tricky.

Tls49 is correctnwith the link: here isk the paragraph in question~ "When I moved on to Lara Ruggles’s “Snowflake,” also from Sony’s AR1 SACD Sampler, I found that voices through the Criterions sounded less colored than through my reference B&W 802 Diamonds. The T+As’ midrange actually reminded me a lot of what I heard while listening to this track through Wilson Audio’s Sophia 3s -- Ruggles’s voice was vibrant, with excellent timing and depth, but also a bit harder and cooler at higher volume levels than through the PMCs or B&Ws. This brings me to my one and only criticism of the Criterions: Like the Wilsons, when the T+As are pushed hard, the upper midrange can sound a bit tilted up and teeter on sounding sharp, most notably with female voices. That’s not to say that their tweeters become noticeable, as do the Sophias’ -- they don’t -- but with some recordings, the Criterions’ CD arrays could sound a hint shouty".