Subwoofers! Etc.
On 22/02/2021 6:17 pm, wrote:
geoff wrote:
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Actually I'm repairing a Bose 1800VI power amp that is reputed to be
quite good. But when you pull it apart it turns out to be Carvin.
** Yep, a PM1400 " magnetic field " job.
Tip from an expert:
Be very wary of any amplifier that has speaker maker's name on it.
Bose, JBL, AR, Renkus-Heinz, EV, Altec ......
..... Phil
I was thinking about a different amp entirely, which was internally
Carvin - not Carver.
This says Bose on the PCBs - I wounder what the Carver one says. It is
a 'straightish' Class AB power amp with a touch where DC rails are
monitored and a triac momentarily switches in an extra section of mains
transformer primary if they dip. Nothing to do with Carver's sonic
holography magnetic field amp mumbo-jumbo, unless that's all it is ....
Had failed because the inside of the casing was essentially a solid
block of fluff and dust (pub).
geoff
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