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AMR PH-77 Reference Class Phono Equalisier

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-- Sat, 07/04/2009 - 10:38

22 EQ curves, 8 levels of gain, 64 steps of load, 3 inputs and onboard 24bit/96kHz Analogue-to-Digital converter with remote ... sweet ... if only I can afford one ...
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DM (not verified) -- Sat, 07/04/2009 - 10:39

Carlson (not verified) -- Tue, 07/07/2009 - 08:08
  • Other than the 22 EQ curves:
  •  
  • 8 levels of gain 72dB, 66dB, 60dB, 54dB, 48dB, 42dB, 36dB, 30dB for complete cartridge compatibility, optimally matching Cartridges with output levels from below 0.1mV to over 12mV.
  •  
  • 64 steps of load for pinpoint resistive and capacitive loading.
  •  
  • 3 switchable inputs to select the desired cartridges and tonearm combination, be it elliptical or spherical stylus cartridges, stereo or mono cartridges, fixed or flexible tonearms, linear tracking or pivoted with Moving Magnet or Moving Coil cartridges.

Does one need so many different options?

The artful Bodger (not verified) -- Wed, 07/08/2009 - 09:44

Carlson writes:

Does one need so many different options?

No, not at all.

One only needs the right one out of each of the lists of all of the options, the one that matches ones turntable, cartridge and arm combo and the record being played.

But what are the chances finding just that right combination of all of them by accident?

Migule (not verified) -- Thu, 07/09/2009 - 00:18

The short answer is YES if you are a vinyl lover. If you are only a casual vinyl listener, has less than 100 vinyl records, the answer is NO.

For example, I have ~500 vinyl records (and growing) and ~800CDs, I will consider those options to be quite essential.

Right now I have a pretty good phono stage ARC PH-7 with my Clearaudio Master turntable and Lyra Helikon SL cart.

Regarding the various EQs, yes, one does need them, I have quite a numbers of DG, Columbia and Decca records, which are just nearly un-listenable on the RIAA EQ.

The gain of the PH-7 is too low and hence I always have to turn the volume way up for vinyl listening, which created lot more background noise than it is necessary. So adjustable gain is nearly a must for me.

Also the loading that I like is somewhere between the 500ohm and 200ohm tabs which PH-7 offers, so a finer adjustable loading is important for me.

Finally, given that the Clearaudio Master has the option to mount more arms, I do have a couple more arms and cartridges now lying in the storeroom which I would love to exploit, so again multi input is a big plus for me.

With the above (EQ, gain, load and inputs) in mind, I would say I now only got 60% of the performance from my vinyl collection, so I am seriously looking for an upgrade to unlock the rest 40% of the performance.

But again, if you are only a very casual vinyl guy, then those features won’t matter.

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