CVR and Admark Amps

I've been reading the manuals for some of the amps from both of these brands and they have left me a bit confused. I'm hoping some kind folk here can provide some clarity for a few things. These questions are based off the CVR D2004 however similar things apply to admark as well.

levyte357- wrote: Answer is simple. At least if you buy a big enough Powersoft, K or X series, it will actually drive your speakers sufficiently, even if it doesn't meet published spec.

Edited by smitske96 - 14 March 2023 at 9:48am

JWS wrote: I've been reading the manuals for some of the amps from both of these brands and they have left me a bit confused. I'm hoping some kind folk here can provide some clarity for a few things. These questions are based off the CVR D2004 however similar things apply to admark as well. 1. These amps come with a 10amp plug, however it says at 1/3rd power it can pull 15-25amps depending on the resistance. How is this possible? Or are they referring to the output current that has been stored in the capacitors like a battery almost? Does this mean there is any benefit to running them off a 15amp circuit? 2. These amps have dip switches on the back that control the input sensitivity, however the higher the gain in db the lower the voltage goes. Why is this? For example; 32db = 3.18V, 35db = 2.25V, 41db = 1.13V.  3. The manual says the knob on the front controls the output amplitude. I thought it would be an attenuator for input sensitivity. What does this knob actually do? I have tried communicating directly with the companies however due to them being Chinese they have a hard time understanding my questions. They couldn't even tell me whether or not it's better to run off a 10 or 15amp circuit, which is why I'm posting here. Hope someone can be of assistance. Cheers:)

1. my CVR came with a genuine 32A powercon. some of the similar amps have a captive lead (4mm csa I think I have seen). what makes you think it is limited to 10A? If it has a UK mains plug with a 10A fuse just cut it off and fit a ceeform or powercon if you want (do check the size of the conductors in the lead first though). Even running through a 10a fuse gives 2300W average. The peaks in current draw won't blow the fuse.

2. the voltage is the voltage input required to give full rated output. the lower the input sensitivity the bigger the dB difference between input and output voltages.

3. the knob attenuates the input signal. the input sensitivity and gain are fixed by the dip switches.

You are currently only making assumptions on a previous case from s different case. 

levyte357- wrote: I know of a British made lightweight, with an extremely well respected name, that also came with genuine Powercon 32A input socket. It was quoted with max current draw of 32A. Did anyone ever draw 32A on metered mains, unlikely, as at 4 ohm stereo, if you ran it on sub, with hpf below 50hz, the amplifier limited itself.

so it's not just the Chinese amps you are cynical about! 

Edited by levyte357- - 14 March 2023 at 10:14am