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Summary of Contents for Extraudio X251 MKII Pure Class AD
- Page 1 Extraudio, high end Audio products X251 MKII Integrated Amplifi er Pure Class AD extraudio® Copyright © 2024 Extraudio, BV. All Rights Reserved Owner’s Manual - X251 V02...
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Page 2: Table Of Contents
Table of contents: Introduction -------------------------------------------------------------- 1 Welcome 2 Warning 3 Explanation 4 The contents Installation ---------------------------------------------------------------- 5 Unpackaging 6 Placement 7 Power ON/OFF sequence Front panel ---------------------------------------------------------------8 Rear panel ----------------------------------------------------------------9 Remote Control ------------------------------------------------------10 Some advice and tips/ Recommendations: ------------------- 11 Cleaning and maintenance 12 Product run-in and operating temperature 13 Fuse and Phase 14 Use electric power conditioner... -
Page 3: Introduction
INTRODUCTION 1. Welcome Thank you and congratulations on the purchase of your new Extraudio Pure Class AD integrated amplifi er, model X251 MKII. This integrated amplifi er is the result of a process of research, development, and innovation (R+D+I) carried out over 10 years in the Netherlands by specialized engineers. -
Page 4: Installation
Also, stay tuned to our hardware upgrade program at the following link: [Extraudio Services and Upgrades](https://www.extraudio.com/extraudio_services_and_upgrades/). -
Page 5: Front Panel
This preamplifi er is built with discrete components in pure Class A and is an essential complement to enjoy your vinyl LPs. NOTE: The Extraudio MM/MC/IEC phono preamplifi er option is not installed in the standard version; if you want this op- tion installed, please contact your offi cial distributor. -
Page 6: Rear Panel
6 with X251, and then turn the selector knob to the pro- the front panel selector knob. For cessor position of the X251. Once the Extraudio safety, there is the possibility to X251 completes its startup process in Processor... -
Page 7: Remote Control
Mute Our remote control has been conceived from a diff erent approach, focusing on user convenience. Extraudio aimed to off er battery life and operating distance as its main features, and these objectives have been achieved: The remote control does not have removable batteries but features a rechargeable internal battery that only needs recharging after approximately more than 100 days under normal usage conditions. -
Page 8: Some Advice And Tips/ Recommendations
12 Product run-in/warming-up and operating temperature Extraudio is fully aware of the empirical concept of the break-in or warming-up period for audio products equipped with thermionic valves or audiophile-grade capacitors. We can affi rm that our valve or solid-state products improve after an initial warm-up and break-in period, which lasts between 100 and 400 hours of operation. -
Page 9: Support
16 Support If you need support or have any technical questions about Extraudio products, contact your dealer or us by email at the following address so that we can provide you with fast and quality support: support@extraudio.com You can also contact us at the following postal address or by email: Extraudio BV Gravin Juliana van Stolberglaan 31, Offi... -
Page 10: Technical Data
17 Technical data Frequency response: Recommendation tube: 20Hz to 50Khz +0db Flat response Electro Harmonix 6922 Gold pin. (balanced triode and matched pair). Noise level / dynamic range / dBA: Premium versión, more silence: GOLD LION 6922 > 120 dB (20 Hz – 20 kHz, 8 Ω load) (balanced triode and matched pair). -
Page 11: Warranty
4. The customer must be in possession of the original invoice so that it can be authenticated in the event of any war- ranty claim and from their country. 5. The Extraudio product must not be modifi ed in any way or the warranty will be null and void. Consult changes of audio valves or tubes. -
Page 12: Energy Effi Ciency
< 0.25 W (Green Energy Star & ErP 1275/2008/EC compliant) Extraudio integrated amplifi er X251 Pure Class AD is equipped with a high power (EPAM module)amplifi cation module with very low power consumption, with an energy effi ciency of 89%. - Page 13 NOTES:...
- Page 14 NOTES:...
- Page 15 Extraudio BV Gravin Juliana van Stolberglaan 31, offi ce A8875 2263 AB - Leidschendam The Netherlands info@extraudio.com www.extraudio.com...
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