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Mapletree L2X Stereo Line, User Manual

The Mapletree L2X Stereo Line product provides high-quality audio performance. Enhance your listening experience with this user-friendly device. Download the free user manual from our website to explore the product's features and unleash its full potential. Visit manualshive.com to access the manual and get the most out of your Mapletree L2X Stereo Line.

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Modular Series

L2X Stereo Line Preamplifier/Buffer

PSX Power Supply

User’s Manual

Revised Feb. 23/14

Mapletree Audio Design

Lloyd Peppard

R. R. 1, Seeley's Bay, Ontario, Canada, K0H 2N0

(613) 387-3830

www.mapletreeaudio.com

[email protected]

© Copyright Lloyd Peppard 2002-2014

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Summary of Contents for L2X Stereo Line

Page 1: ...mplifier Buffer PSX Power Supply User s Manual Revised Feb 23 14 Mapletree Audio Design Lloyd Peppard R R 1 Seeley s Bay Ontario Canada K0H 2N0 613 387 3830 www mapletreeaudio com info mapletreeaudio com Copyright Lloyd Peppard 2002 2014 ...

Page 2: ...onsists of a preamplifier chassis with provision for connection to the separate PSX power supply This allows separation between the two units and eliminates induced hum originating from power supply circuitry and components The Mapletree PSX power supply provides 12 VDC at 0 6 A for the heater supply and 250 VDC at full load 12 mA for the B plate supply The power connections to the preamplifier ch...

Page 3: ... one stereo line output The line input source selector switch is located between the input jacks Each input gain is custom specified to be either 10 dB or 0 dB unity gain at full volume The corresponding input resistance is 100 k or 470 k respectively which provides minimal loading for any line source such as CD DVD player tape deck tuner or PC sound card The line output impedance is less than 500...

Page 4: ..._____ Frequency response 100 k 50 pF load 1 V output 12 Hz 20 kHz 0 5 dB Maximum input voltage 5 V rms Voltage Gain 100 k load 1 kHz 10 dB or 0 dB for use as a buffer Output impedance 1 kHz 450 Input impedance 1 kHz 100 k 10 dB gain or 470 k 0 dB gain Hum and noise at output max volume less than 200 V rms Phase Inverting Power consumption 20 W Warranty___ Assembled MAD components are warranted for...

Page 5: ... Peppard 2002 2014 250 V R output 47 5K 1 10K 1 1u 400V 1M 1 511K 1 V1b 12SN7GT 1 2 3 4 5 6 A B 1u 400V 100K Source 1 2 R Line inputs Volume 0 1u 400V 1K 1 511K 1 250 V 54 V 49 V 250 V 475K 1 7 8 7 8 12 VDC Power In rear view 5 1K 2W 100u 400V B _ 12SN7s A 475K 1 1 9 V Ground bus chassis Ground bus 100K 1 100K 1 Gain 0 dB Gain 10 dB Gain 0 dB Gain 10 dB 47 5K 1 47 5K 1 Input resistors shown for ga...

Page 6: ...u 25V 6A R3 1 5K LED 115 VAC Mapletree Audio Design Preamplifier Power Supply PSX Copyright Lloyd Peppard 2012 14 Rev Feb 23 14 6 8K 5W L N G 115 VAC 1 3 4 8 7 6 5 115 VAC 115 VAC 3 4 2 1 5 6 7 8 115 VAC 25 mA 115 VAC 2 10 VAC 1 2 A 1 2 3 4 Rear View B GND Power Out MUR180 ...

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