My experience is only with the P3ESR and Proac Tablette 50 Signature.
From what I gather the Studio 100 is a lower-end model in comparison to the 1SC which used to be Proac's reference monitor. Although decent, the Studio 100 is not in the league of the 1SC in terms of poise and refinement. The 1SC will have superior separation, imaging and delicate highs, whereas the Studio 100 will sound as what Zkzp8 had described, though the bass will go deeper due to the larger cabinet and mid-bass driver. Between the Studio 100 and 1SC, I wager it's a choice of a bigger scale and fuller sound of the Studio 100, or a more refined and delicate sound of the 1SC.
Personally I would go with either the 1SC or P3ESR. The P3ESR will have the signature "organic bloom" of the Harbeth house sound which gives a warm glowing feel to music. The Studio 100 is not at the level of both these speakers though it may be able to play louder.
Since you find the Studio 100 an excellent speaker, you may want to consider it over the 1SC or P3ESR to minimize your risk if an audition can't be arranged.
From what I gather the Studio 100 is a lower-end model in comparison to the 1SC which used to be Proac's reference monitor. Although decent, the Studio 100 is not in the league of the 1SC in terms of poise and refinement. The 1SC will have superior separation, imaging and delicate highs, whereas the Studio 100 will sound as what Zkzp8 had described, though the bass will go deeper due to the larger cabinet and mid-bass driver. Between the Studio 100 and 1SC, I wager it's a choice of a bigger scale and fuller sound of the Studio 100, or a more refined and delicate sound of the 1SC.
Personally I would go with either the 1SC or P3ESR. The P3ESR will have the signature "organic bloom" of the Harbeth house sound which gives a warm glowing feel to music. The Studio 100 is not at the level of both these speakers though it may be able to play louder.
Since you find the Studio 100 an excellent speaker, you may want to consider it over the 1SC or P3ESR to minimize your risk if an audition can't be arranged.