5K Torroidial Amp performance on 13A Socket

Various 5K amps peform differently, when on 13A/32A with varied mains sag.

CA18 I know personally will clip early on saggy mains ring, however few other 5K amps do not.

Would have thought CA18 with lots of smoothing would cope, but I know of few other big amps that are not as susceptible.

Is it due to huge number of transistors per channel needing hefty current?

No it is often down to the way that the driver stages are powered. Amps with isolated driver rails will sometimes prevent nasties from entrering the sound for longer as the voltage sags.

Given similar topologies i.e. class AB, H, G etc. the amount of current required by the amplifier should not change that much whether you have 10 or 16 devices per channel.

Tony

Tony Wilkes wrote: No it is often down to the way that the driver stages are powered. Amps with isolated driver rails will sometimes prevent nasties from entrering the sound for longer as the voltage sags.

Given similar topologies i.e. class AB, H, G etc. the amount of current required by the amplifier should not change that much whether you have 10 or 16 devices per channel.

Thanks TW.

Are you able to comment on differences between CA18 & QSC 5050?

Ray, Although I have heard both amps they were not being pushed hard so I cannot comment.

Tony

Tony Wilkes wrote: Ray, Although I have heard both amps they were not being pushed hard so I cannot comment.

They both sound very nice, better in quality than MA5000VZ.

However, the QSC does'nt clip as early as the CA18 on saggy mains.

levyte357 wrote:

Tony Wilkes wrote: Ray, Although I have heard both amps they were not being pushed hard so I cannot comment.

They both sound very nice, better in quality than MA5000VZ.

However, the QSC does'nt clip as early as the CA18 on saggy mains.

CA18 is 2 step Class-G and QSC RMX5050 is 3-Step Class-H.

Therefore 3 step Class-H QSC will waste less power into dissipated heat than 2 Step Class-G/H CA-18, hence less Sag on the mains. smiley1

3 Step class-H has much higher efficiency than 2 Step-Class-H



Kanwar

Please, Could someone list the amps with all these features:
-3 step class g/h
-double toroidal transformer

Kanwar wrote:
CA18 is 2 step Class-G and QSC RMX5050 is 3-Step Class-H.

Therefore 3 step Class-H QSC will waste less power into dissipated heat than 2 Step Class-G/H CA-18, hence less Sag on the mains. smiley1

3 Step class-H has much higher efficiency than 2 Step-Class-H
Kanwar

smiley32

Number of times I have asked similiar questions on SP, and was ridiculed by people explaining electricity is electricity... Guess it just meant they did'nt know the answer... smiley36

bitzo wrote: Please, Could someone list the amps with all these features:
-3 step class g/h
-double toroidal transformer

If you find any cheap ones, you need to tell me first... smiley36

come on.... let me think about dreaming gear...even if it's not cheap.

levyte357 wrote:

Kanwar wrote:
CA18 is 2 step Class-G and QSC RMX5050 is 3-Step Class-H.

Therefore 3 step Class-H QSC will waste less power into dissipated heat than 2 Step Class-G/H CA-18, hence less Sag on the mains. smiley1

3 Step class-H has much higher efficiency than 2 Step-Class-H
Kanwar

smiley32

Number of times I have asked similiar questions on SP, and was ridiculed by people explaining electricity is electricity... Guess it just meant they did'nt know the answer... smiley36

The owners of that forum have big "VOID" in their knowledge which is very Dangerous smiley2
and it is made for self appraisal not for neutral thought process.