I just swapped out my Spendor S8e Speakers with some Zu Druid speakers. I found the Zu Druids to sound much more open and dynaic and impart more musical richness than the Spendors to me, particularly with vocals and guitar.
The highly efficient Zu Druids have very good midrange bass and are only lacking in the lower sub frequencies from around 40hz down. The are fast and they come up to speed quickly as they can be played well at low volume levels or can be driven hard. A sub easily fills in the lower sub frequency levels, yet they sound respectable without a sub. Expect them to sound terrible when you first get them as they improve dramatically over time in spite of factory break in.
In all fairness the Spendors are also great speakers. I seem a little clearer and more accurate than the Zu Druids and have bass deep into the sub frequencies. However, if you drive them real hard, they can cut out and make a buzzing sound. I imagine it is because they are puting out so much bass already.
The highly efficient Zu Druids have very good midrange bass and are only lacking in the lower sub frequencies from around 40hz down. The are fast and they come up to speed quickly as they can be played well at low volume levels or can be driven hard. A sub easily fills in the lower sub frequency levels, yet they sound respectable without a sub. Expect them to sound terrible when you first get them as they improve dramatically over time in spite of factory break in.
In all fairness the Spendors are also great speakers. I seem a little clearer and more accurate than the Zu Druids and have bass deep into the sub frequencies. However, if you drive them real hard, they can cut out and make a buzzing sound. I imagine it is because they are puting out so much bass already.