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Master Room XL-305
Master Room XL-305
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Old 16th August 2008, 04:10 PM   #1
kamskoma is offline kamskoma
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Location: Nordkap
Default Master Room XL-305

I need some info regarding Master Room XL-305 Reverb, I need the schematics or at least the pin out for the IC ESM532C DIL configuration.

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Old 21st October 2008, 07:26 PM   #2
mediatechnology is offline mediatechnology  United States
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Hi kamskoma -

I designed the XL-305's electronics while at MicMix.

I've posted schematics of the unit here:


It has the ESM532C SIP pinout. I've been unable to find the datasheet. It was made by SGS/Thomson.

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Old 20th March 2010, 09:15 PM   #3
mediatechnology is offline mediatechnology  United States
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john1 at the Pro Audio Design Forum was kind enough to send me a pdf of the ESM532C datasheet. It's posted here:

Pro Audio Design Forum • View topic - ESM532C Power Op Amp Datasheet
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Old 9th June 2010, 10:41 PM   #4
rootbeeraudio is offline rootbeeraudio
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Default problem with reverb

Hello mediatechnology,
I was wondering since you designed it if you could help me troubleshoot my unit. The unit turns on but doesn't really pass signal. The LED meters do not show any sort of signal. I have replaced the chips, voltage regulators, and the filter caps recently. Could it be that ecm chip? I can only find them on ebay and am scared to spend so much on two new ones if they are fine? Any tests I should try? Any help is greatly appreciated. Thanks
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