Higher powered but efficient amp with the imaging of a Pass XA-25?


I had an XA-25 for a trial driving a pair of Spatial X5’s (97db efficiency). That combo produced imaging depth like I have never heard before or since. But my room is big at 25 x 25 feet and the Pass couldn’t cut it at reasonable levels (too noisy). Now the Spatials are gone, using KEF Reference 1 with Rowland 535 monos. The KEFs are NOT efficient (85 db) and require some real grunt from an amp.

Does anyone know of a high powered (200-500 W/C), high current, balanced amp that is reasonably efficient (unlike Pass) and which can produce the layered depth and finesse of the XA-25? I do not want to go all tubes in my power amps. Hybrid is OK.

I have ordered a tube preamp (Rogue RP-7) to replace my Benchmark LA4. I think that will help but I doubt it will get me all the way there.

Thanks in advance.

markmuse

@jayctoy Do you have direct experience with these amps driving speakers in the Reference line? Tell me more, like sonic characteristics with these speakers.

 

If I do it will be for a pair of Joseph Audio Pulsar2 Graphene

You got that right!!!  I’m with you brother. 

Russ +. Nailed it.

Three out four of yours are good choices for new speakers.

I am buying one of them now.

I would swap the SF Olympica for the Amator Electa III.

That would be my ideal choice of those 4. Add a couple nice little RELs

and you are up by 200% from where you are now.

I just changed to a Coda Continuum 8 with my Kef reference 3. It makes beautiful  music. 

 

Thank you, everyone, for sharing your experiences and recommendations. You have given me plenty of food for thought. I will see what changes the Rogue preamp brings and then make some decisions. If I can remember I will update this thread but it likely will be 6 months or more.