Start with the definition of "good bass" (or bad bass). Extension? Resolution? Emphasis versus other frequencies (think Massive Attack, etc)? Answer according to what's important to you, rather than what others think is "good bass". Your answers will help determine your choice of DAC...and everything else in your system.
Are we talking about lower bass, or mid bass (where lots of music lies)?
In my experience, "slam" is attributable more to amplification/speaker pairing than to a DAC. It could also be that your friend's preamplifier input impedance (or amplifier input impedance if running direct from a DAC with volume control) matches better with his PS DSD than the Lampizator DAC he heard (this assumes he heard the Lampizator in his system). If your friend heard the Lampizator DAC and PS DSD in different systems, then all bets are off because there are too many variables to make a decent comparison.
In my system, the Lampizator Baltic 3 (engine 53) had very good bass in terms of extension and frequency balance. The Bricasti Design M1S2 has better resolved bass (detail), and it's balanced within the frequency spectrum. It's faithful to the recording, which is important to me. I don't want my system to add anything that's not on the recording. If I decide I want a little extra bass, then I can add an EQ filter via Roon (but I rarely do).
I generally wouldn't choose one DAC over another based on comparing bass reproduction. One DAC that wowed me with bass when I first turned it on was a Schiit Audio Yggdrasil, but it quickly grew tiresome.