Aye, strange when the linear supply is fine at 16v. Amps still work, just have the squeal in the background.Originally Posted by brian2957
Don McCorleone
Location: Galashiels
Posts: 13,701
I'm inthescottishmafia.
Aye, strange when the linear supply is fine at 16v. Amps still work, just have the squeal in the background.
“Music has always been a matter of energy to me, a question of fuel. Sentimental people call it inspiration, but what they really mean is fuel. I have always needed fuel. I am a serious consumer. On some nights I still believe that a car with the gas needle on empty can run about fifty more miles if you have the right music very loud on the radio”
Hunter S Thompson
Trade: 20/20 Audio
Location: Glasgow
Posts: 7,728
I'm Brian.
I adjusted the Maplins PSU down to 15.8v and everything was fine.
Don McCorleone
Location: Galashiels
Posts: 13,701
I'm inthescottishmafia.
Well this battery pack has three voltages, 12, 16,19. 16 actually measures just over 14v, but still squeals..
“Music has always been a matter of energy to me, a question of fuel. Sentimental people call it inspiration, but what they really mean is fuel. I have always needed fuel. I am a serious consumer. On some nights I still believe that a car with the gas needle on empty can run about fifty more miles if you have the right music very loud on the radio”
Hunter S Thompson
Trade: 20/20 Audio
Location: Glasgow
Posts: 7,728
I'm Brian.
Is there something inbuilt into the supplied PSU which the linears don't have . My Bantam is running quite happily from my 12v car battery .
Don McCorleone
Location: Galashiels
Posts: 13,701
I'm inthescottishmafia.
Dunno, but it does it whether the charger is plugged in or not.
“Music has always been a matter of energy to me, a question of fuel. Sentimental people call it inspiration, but what they really mean is fuel. I have always needed fuel. I am a serious consumer. On some nights I still believe that a car with the gas needle on empty can run about fifty more miles if you have the right music very loud on the radio”
Hunter S Thompson
Senior Member
Location: Southport, Merseyside
Posts: 157
I'm Nigel.
I tried the Maplin full on and it measured 16.4v on my example but the unit was buzzing like a bee. I backed off to 16v and this worked fine. i still think the 12v security system battery is better, sweeter and more detailed. I give it a charge every 48hrs. John mentioned that it was preferable to leave the amp powered all the time, whether the blue light was on or off was up to the individual. I have enquired as to what's the difference, eg what's not powered when the amp is connected to a supply but switched off, however he hasn't responded yet.
Senior Member
Location: De Bilt - the Netherlands
Posts: 300
I'm Steven.
Aside from the squealing at 16V, can anyone of the new owners lift another tip of the veil of how his/her BM2 excels with the battery attached?
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Steven
Trade: Beresford Media & Electronics
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You should only use the battery pack at 12V.
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Don McCorleone
Location: Galashiels
Posts: 13,701
I'm inthescottishmafia.
I should be clear, I'm talking about running Temple Audio Bantam Gold Class D amps.
“Music has always been a matter of energy to me, a question of fuel. Sentimental people call it inspiration, but what they really mean is fuel. I have always needed fuel. I am a serious consumer. On some nights I still believe that a car with the gas needle on empty can run about fifty more miles if you have the right music very loud on the radio”
Hunter S Thompson
Purveyor Of Tunes
Location: Cricklewood
Posts: 9,074
I'm ILOB.
I use mine at 12v no issues Ali
Can you try a 12v car or bike battery and see if it has the same issues
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