ankan
Member
Hi,
I am in the process of trying to find a suitable power amp for my new Electromorion ESLs, which I currently drive with a Pioneer SC-2023 A/V.
From extensive reading numerous reviews and opinions both here and at various sites, I have come down to either the Parasound Halo A21 (250W/8ohm) or the Parasound Halo A23 (125W/8ohm).
Having taking into consideration that the MLs need quite a lot of power to play at high volumes, both for music and home cinema, seems that the A21 is the way to go over the A23 (400W/8ohm).
Since the A21 is way pricier than the A23, I was thinking of getting the A23 and maybe in the near future get another one and bridge them.
Having read the A23 manual, it states that when bridged, it is better not to drive any speaker less than 8ohm and as we know the Electromotion are 6ohm and can in some frequencies dip down to 1,6ohm !!
The explanation for the above statement is that, at lower impedance the required current from the amp will be too much, so there is a possibility of over-heating.
It is not that the amplifier cannot give more power at lower load but rather, the extra current may over-heat the amp.
The Electromotion ESL, according to a lab test I have found http://www.listeningpost.co.nz/assets/martinlogan_electromotion_117595_1.pdf have some load dips but, as the report states the required power at these frequencies are not a problem for most modern power amplifiers.
What is your comment on this ? will the bridged A23's will have a problem with the Electromotions or should I go for the A21 just to be sure ?
I am in the process of trying to find a suitable power amp for my new Electromorion ESLs, which I currently drive with a Pioneer SC-2023 A/V.
From extensive reading numerous reviews and opinions both here and at various sites, I have come down to either the Parasound Halo A21 (250W/8ohm) or the Parasound Halo A23 (125W/8ohm).
Having taking into consideration that the MLs need quite a lot of power to play at high volumes, both for music and home cinema, seems that the A21 is the way to go over the A23 (400W/8ohm).
Since the A21 is way pricier than the A23, I was thinking of getting the A23 and maybe in the near future get another one and bridge them.
Having read the A23 manual, it states that when bridged, it is better not to drive any speaker less than 8ohm and as we know the Electromotion are 6ohm and can in some frequencies dip down to 1,6ohm !!
The explanation for the above statement is that, at lower impedance the required current from the amp will be too much, so there is a possibility of over-heating.
It is not that the amplifier cannot give more power at lower load but rather, the extra current may over-heat the amp.
The Electromotion ESL, according to a lab test I have found http://www.listeningpost.co.nz/assets/martinlogan_electromotion_117595_1.pdf have some load dips but, as the report states the required power at these frequencies are not a problem for most modern power amplifiers.
What is your comment on this ? will the bridged A23's will have a problem with the Electromotions or should I go for the A21 just to be sure ?