2 Ohm Tekton Pendragons

Two different issues,
1 4 ohm speakers are common these days so in that regard nothing out of the ordinary for Tekton to choose that route. If a 4 ohm load is relatively flat and avoids steep phase angles (Particularly at lower frequencies) many amplifiers can manage that. I drove a friend’s 4 ohm  Double Impacts with my 300b SET without any problems.

2 The topic of this thread is more specifically referencing 2 ohm nominal speaker loads. This is not a common choice at all and for good reason . Many posters on this thread have givenlogical reasons as to why this is so.
Big difference between 2 ohm versus 4 ohm nominal speaker impedance loads.

One is commonplace and the other is rare (For very good reasons). Who has even questioned the 4 ohm Moabs (Probably very similar to the Double Impacts mentioned earlier). It is not the topic as it’s not a 2 ohm load.
Charles

@kijanki
Ohm's  Law in effect😊.
Charles

Hi @kijanki,
Requiring 2.83x the current for a given power level doesn't seem an insignificant amount of increased demand.  
Charles 

@speakermaster, 
It has been postulated by others on this forum in the past that the  high impedance speaker's decreased manufacturing was due to,
 1 The increasing availability in the 1960s  of transistor amplifiers that made obtaining more watts much less expensive compared to tube power.

2 A good quality high impedance speaker is relatively  more expensive to build and requires more effort.  These 2 factors are said to have led the shift to 4 ohm speakers becoming more popular and the default choice.
Charles 

@rhljazz,
BTW the  discontinued VAC Kevin Hayes designed Renaissance models were 300b push-pull ciruits(1990s) have 2 ohm speaker taps to use if push came to shove. Nonetheless they were at their best sonically when driving higher impedance speaker loads. All one had to do was listen.
Charles

@mapman, +2
You have been on point with your comments on this thread.
As you and others have noted there’s ’little’ rationale for a 2 ohm nominal speaker load. The only possibility I can envision for 2 ohm impedance and 98 db sensitivity is seeking a high SPL/ volume objective.

Ralph (Atmasphere) has explained very eloquently that the lower the speaker impedance load the more amplifier distortion. Less distortion when driving higher impedance loads. I guess to some he doesn’t know what he’s talking about. Okay.
Charles