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Novedades de la Berliner Philharmoniker's Digital Concert Hall y Sony ...

Para celebrar la actualización de los dispositivos Sony para soportar "live streaming", Digital Concert ofrece de forma gratuita un ticket de 30 días.

Now with live streaming and free 30-day access for all new and existing Sony customers

Sony has upgraded all* 2011 and 2012 models of TVs, Blu-ray players and select home audio systems with live streaming functionality. For the first time you can access the entire Digital Concert Hall through Sony's simple navigation system, designed specifically for easy access and casual users.

To celebrate this feature upgrade Sony is giving away a free 30-Day Ticket to each and every customer who has registered with the Berliner Philharmoniker's Digital Concert Hall.

This ticket is a gift. You are not agreeing to any subscription. Your access will expire automatically after 30 days. You may begin your 30 days whenever you like but you must request your ticket before 31st July 2012.

Fuentes / Documentos: Audioquest, Computer Audio Setup Guide (PDF)
« en: Julio 03, 2012, 14:46:50 »
Guías básicas Audiquest dedicadas a los computadores como fuente y su configuración -Mac y Windows-:  :angel:

Computer Audio Setup Guide

Computer Audio Demystified

OS X Audio Players: Amarra, Audirvana, Pure Music, Fidelia, Decibel, and BitPerfect

Sometime in 2011 I began thinking about the possibility of doing a review on high quality audio players for the Mac OS X operating system. Even though Windows users still represent a big part of Headfonia readers, I choose to focus on OS X for now because it’s easier to do as I use Mac myself, but also because for most developers, OS X seems to be the platform of choice when it comes to high quality audio playback.

Table of Contents

    * General Facts About Audio Players – Page 1
    * The Sonic Studio Players – Page 2
    * Audirvana Free and Audirvana Plus – Page 3
    * Pure Music – Page 4
    * BitPerfect – Page 5
    * Decibel – Page 6
    * Fidelia – Page 7
    * Common Settings Parameters – Page 8
    * Classification, Final Thoughts – Page 9

AKG K550 — A New Closed Headphone Favorite

One of AKG’s CES 2012 releases is the K550 ($299), a full-size, closed headphone sensitive enough to be driven from a portable player with the tonal accuracy of the K701/702, but with fuller bass presence. Finally, a closed headphone that rivals the Denon AH-D2000 that looks and feels like it will withstand the rigors of portable use!


The bass is tight and detailed as we’ve come to expect from AKG, but with a fullness that rivals the Denon D2000, only lacking the extreme sub-bass extension of the Denon. The mid-range presentation is lush, silky and cleaner than the thicker mids of the D2000, and while the highs are crisp and articulate, they never reach a point of harshness like the D2000 is prone to at higher volumes. We found the soundstage of the D2000 to be slightly more open and airy, but the K550’s imaging is excellent with good separation and definition, demolishing the sound of any other closed AKG headphone.


The excitement is high for the AKG K550 here at HeadRoom. We’ve been long-time fans of the Denon AH-D2000 and the K550 gives it a serious run for the money, especially at $50 lower MAP. This is a great choice for someone looking for a tonally accurate headphone with a tight and full bass response, but doesn’t want the fuller, thicker presentation of the D2000.

Bricolaje (DIY) / DIY Shielded RCA Interconnect Cables
« en: Febrero 23, 2012, 14:30:02 »
Una opción para cables RCA: Instrument and microphone cable

Instrument and microphone cable must provide a very good shielding to block noise and radio frequencies (RF) and it is designed to deliver a wide frequency band. This makes a lot of sense as instrument cables are used with guitars, microphones and studio equipment. Why should this not work for interconnects? That was the quest(ion).

DIY Shielded RCA Interconnect Cables

This project is a guide to build your own simple high quality RCA interconnect cables for your Hi-Fi audio system. These "better DIY RCA interconnects" are unbalanced and made using shielded instrument cable and high quality RCA plugs.

Auriculares / Sennheiser HD700 Unboxing
« en: Febrero 23, 2012, 14:19:27 »
Con fotos para comparar los HD700 y HD800

Sennheiser HD700 Unboxing

Música / Masterizado para iTunes
« en: Febrero 22, 2012, 14:40:31 »
Nueva sección en iTunes: Masterizado para iTunes

¿mayor calidad ... ?

Mastered for iTunes (PDF)

    La zona exclusiva "Masterizado para iTunes" da entrada a nuevos álbumes superventas de grandes artistas como Madonna, Paul McCartney, Kaori Muraji, U2, John Coltrane o Bon Jovi. El propósito de esta zona de iTunes es que los más aficionados puedan experimentar su música favorita con mayor calidad aún, replicando más exactamente lo que tenían en mente los artistas, ingenieros de grabación y reproductores al crear la obra.


    Los albumes masterizados para iTunes han sido especialmente optimizados para reproducir sonidos de más alta fidelidad en el ordenador, en el equipo de música y en los dispositivos portátiles de Apple. La zona Masterizado para iTunes ofrece ya una variada selección de música de diferentes géneros.

    Además de esta zona con álbumes de diferente género, se ha creado también una zona Masterizado para iTunes dedicada específicamente a Albumes de Música Clásica.

Bricolaje (DIY) / DIY: Sennheiser HD 800 "The Anaxilus Mod"
« en: Febrero 22, 2012, 13:27:26 »
DIY Modification for the Sennheiser HD 800: "The Anaxilus Mod"

the stock HD 800 remains a tad hard on my ears, and many headphone enthusiasts have expressed similar sentiments. Over the years a tweak for the HD 800 has been developing in the enthusiast community at Head-Fi.


Bricolaje (DIY) / Piccolo mini CNC por menos de 70$
« en: Febrero 17, 2012, 14:16:09 »
Una herramienta interesante ... mini CNC controlado por Arduino por menos de 70$ ...


Fuentes / The Altmann Tera-Player
« en: Febrero 06, 2012, 11:00:31 »
Por sólo 840€ ...  :o

The Altmann Tera-Player

An Interview with Charles Altmann


size: 57 x 57 x 18 mm

weight: 80 grams

case: all aluminum black anodized, laser engraved

front rear plates: 2mm aluminum black anodized, CNC machined

battery: Motorola LI-ION 700mAh

charging: mini-USB port 300mA, monitored by red LED

playtime on single charge: >12h (15h tested with 6 years old battery)

charge time: 2h 80%

Storage: SDHC card slot with 4/8/16 or 32 GB SDHC

currently testing SDXC cards with 64GB (all SDXC cards must be formatted to FAT32 for use in the Tera-Player)

Supported file type: WAV stereo 16-bit and 24-bit

Supported sample-rates: 44.1 / 48 / 88.2 / 96 / 176.4 and 192 kHz

headphone outputs: silver plated contacts, 2 separate outputs: teramega and superduper, can be used simultaneously

recommended headphones: Koss Porta-Pro, Kramer mod

main chip: ARM Cortex

oscillators: 2 separate precision Golledge crystal oscillators

DAC: modified NOS Philips R2R with current output

Oversampling: Zero

I/V conversion: Burr-Brown

headphone amplifiers: Burr Brown

navigation: tactile pad with 5 stainless steel buttons, gold plated contactor foil, hand assembled

volume control: 32-bit digital

navigation commands: next previous track / album / artist

supports iTunes® music library structure

5 (five) years limited warranty

made in Germany

Auriculares / Nuevos Koss Porta Pro KTC para iPhone
« en: Enero 31, 2012, 06:52:00 »
Novedad del CES ... versión de los clásicos Koss Porta Pro para iPhone con control remoto:

Adding artwork corrupts some Lossless iTunes files

Apple's Lossless audio format is a popular option for people importing CDs into iTunes who wish to preserve as much of the original song quality as possible; however, a number of people have been noticing that random tracks imported in this format become corrupted after artwork is applied to them.

En video streaming HD  ...

Free concert with the National Youth Orchestra of Germany, Markus Stenz and Mahler's Fifth Symphony

National Youth Orchestra of Germany 15/01/2012
Markus Stenz

Watch entire concert (01:41:15)

    *  Detlev Glanert
        Insomnium (24:48)

    *  Gustav Mahler
        Symphony No. 5 (1:16:27)

Del CES 2012: [nota: simplemente comparto el artículo sin entrar en el fondo del asunto ... ] 

Klipsch Group Sees Their Future In Apple’s Airplay [CES 2012]

“We feel like Airplay is going to be the next media,” Product Manager Gavin Reeg said during Klipsch’s 30 minute press event. Then it was VP of Product Development Mark Casavant’s turn, and he made it very clear: their future is in Apple’s Airplay.

Klipsch is moving to support Airplay in many (if not all) of the Audio Systems they release in the next 9-12 months, and are also seriously considering adding support to other product lines they own, such as the Energy brand.

Fuentes / Digital music sales top physical sales
« en: Enero 05, 2012, 22:15:01 »
Digital music sales top physical sales

For the first time in history, digital music sales topped the physical sale of music.

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