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Joined: 5/28/2014(UTC) Posts: 24 Location: Foggia
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Dear Twisted Pear Audio Support, I am using BIIISE and legato 3.1 fully assembled, connected in balaced to the integrated amplifier PRIMARE I30. The problem is this: When I connect the cd player (PRIMARE CD31) in balanced, the amplifier emit its full power, but when I connect legato 3.1, does not emit all its power, going with the volume control at the stroke end. I am attaching the specifications of the amplifier and cd player, so as to be able tell me the correct gain (in my case) for the Legato. if you can reccomend me the values of the resistances. TECHNICAL SPECIFICATION I30 http://www.primare.net/a.../files/I30usermanual.pdfBalanced inputs 560mV Line inputs 280mV Tape outputs 280mV TECHNICAL SPECIFICATION CD31 http://www.cmy.com.my/ca...g/images/PrimareCD31.pdfOutput Analogue Unbalanced 2.0VRMS Output Analogue Balanced 4.0VRMS Output Impedance 100 OHm Waiting for your kind reply, Best Regards Giuseppe
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Joined: 6/17/2008(UTC) Posts: 921 Thanks: 1 times Was thanked: 70 time(s) in 69 post(s)
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Reading the manual you'll see: " Other Applications If you want to change the output voltage you need to adjust both the top - I/V (R1-R4) values and bottom - CCS (R9-R16) values in proportion to each other. I have found that a ratio of 1/4.4 works very well for top resistor values up to about 364Ω. I have not tried gain any higher than that. If you need to please contact us. " http://www.twistedpearau...to_user_manual_3.1.0.pdfTry using 200R for R1-R4 and 887R for R9-R16. This will increase overall gain, both balanced and single ended. If your connecting single ended only, you can just increase the gain in the BAL-SE stage (OPAMP).
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