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Mapletree Ear+ HD Super II, User Manual

The Mapletree Ear+ HD Super II is a high-quality headphone amplifier designed to enhance your listening experience. Get the most out of your device by downloading the User Manual for free from 88.208.23.73:8080. This manual provides detailed instructions to help you maximize the performance of your amplifier.

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Ear+ Purist HD 

 

 

 

 

Ear+ HD Super II  

High Definition Stereo Headphone Amplifier 

 
 
 

Users' Manual 

 

Rev Feb. 25/13 

 
 

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 2008-13 

 

Summary of Contents for Ear+ HD Super II

Page 1: ...Definition Stereo Headphone Amplifier Users Manual Rev Feb 25 13 Mapletree Audio Design Lloyd Peppard R R 1 Seeley s Bay Ontario Canada K0H 2N0 613 387 3830 www mapletreeaudio com info mapletreeaudio...

Page 2: ...ary protection for the power supply It is located under the chassis and can be accessed by removing the bottom cover of the power supply with the unit unplugged and waiting 1 minute after powering off...

Page 3: ...is required usually supplied with your headphones Headphone impedances from 30 to 300 are suitable for use with either the high impedance Hi Z or low impedance Lo Z output jacks The low impedance out...

Page 4: ...EL84 6BQ5 output tubes Matched pairs are not required Replacement tubes can be obtained from several suppliers in the U S and Canada Both types are currently manufactured and are also available as new...

Page 5: ...ut 0 32 W Po max Rload 680 mW 25 500 mW 32 160 mW 100 57 mW 300 28 mW 600 Overload characteristic 1 kHz 50 Ohm load Hi Z output Output impedance at 1 kHz Hi Z 2 6 Lo Z 1 3 Input impedance 50 k Gain Hi...

Page 6: ...119DA 1K 1 Tant 12AX7 5751 Headphones Hi Z 6 7 8 3 2 7 9 6 7 8 3 2 7 9 Headphones Lo Z 120 VAC 100u 400V 33K 1 W 5 CF 100u 400V Power 1 A 250 V LED Pilot 12AX7 EL84 100u 400V L N EL84 1K 4 5 4 5 4 5...

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