If you have done this with two amps already it’s very likely that it’s the speakers. To give it a third test perhaps purchase a high watt mid fi amp from a big box store try it and return it? That should assure you it’s the speakers not the amp if the bass is the main problem.
The only other thing I can think of is the high dampening on the Hegel somehow not matching the speakers profile. What was the other new amp?
Hegel h190 has great bass normally. And it’s a super flexible amp that gives you a foundation to try many different types of speakers.
In terms of things to check - the capacitors could be an issue, the crossover or the foams around the speaker. Is there any sign of rust or degradation at the speakers posts or in the transducers? These are highly regarded speakers so perhaps there are vintage kef specialists who can help. For what it’s worth I have a Hegel with rebuilt vintage tannoy hpds and its a great match. But they have a new cabibet, new foams etc.
Kerp us posted.
The only other thing I can think of is the high dampening on the Hegel somehow not matching the speakers profile. What was the other new amp?
Hegel h190 has great bass normally. And it’s a super flexible amp that gives you a foundation to try many different types of speakers.
In terms of things to check - the capacitors could be an issue, the crossover or the foams around the speaker. Is there any sign of rust or degradation at the speakers posts or in the transducers? These are highly regarded speakers so perhaps there are vintage kef specialists who can help. For what it’s worth I have a Hegel with rebuilt vintage tannoy hpds and its a great match. But they have a new cabibet, new foams etc.
Kerp us posted.