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stereosound
Published on 07/31/08 at 09:16
My opinion (July 26, 08) will be complementary to that of [small-night] of 06/01/2007
I communicate my disappointment only on the quality of the amp. Integrated headset (one of the reasons for my purchase). Compared hearing (Sennheiser 32 ohms) with the headphone output of the ML9600 ALESIS Masterlink, there was a glaring lack of serious.
So I made measurements on the impedance of 32 ohms, and found that the signal breaks down to 40 Hz (- 7 dB) compared to 1000 Hz
I had a mail in SM Pro who confirmed the validity of my analysis (below) and confirms that a correction be made on future models. So to the owners of an older version and followers the soldering iron:
- The housing Ouvir
- Identify the NJM4556 next to the headphone jack and two condos next (47μF/25v or 106 Hz Low Cut Fr @ 32 ohms)
- Change by 470 μF/25v (mini or cut Low Fr 10.6 Hz @ 32 ohms). Take condos quality AUDIO (type ELNA)
- Remove the two 27 pF condos on the VC Op amp (under limiting acute)
This is not the best sound in the world but frankly it has become better (more punchy in the low and best attacks).
I communicate my disappointment only on the quality of the amp. Integrated headset (one of the reasons for my purchase). Compared hearing (Sennheiser 32 ohms) with the headphone output of the ML9600 ALESIS Masterlink, there was a glaring lack of serious.
So I made measurements on the impedance of 32 ohms, and found that the signal breaks down to 40 Hz (- 7 dB) compared to 1000 Hz
I had a mail in SM Pro who confirmed the validity of my analysis (below) and confirms that a correction be made on future models. So to the owners of an older version and followers the soldering iron:
- The housing Ouvir
- Identify the NJM4556 next to the headphone jack and two condos next (47μF/25v or 106 Hz Low Cut Fr @ 32 ohms)
- Change by 470 μF/25v (mini or cut Low Fr 10.6 Hz @ 32 ohms). Take condos quality AUDIO (type ELNA)
- Remove the two 27 pF condos on the VC Op amp (under limiting acute)
This is not the best sound in the world but frankly it has become better (more punchy in the low and best attacks).