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Review and Measurements of Massdrop THX AAA 789 Amp

Rottmannash

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Mine as well.
 

al2002

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Anyone know if this is discontinued? it hasn’t been available for a while.
 

bequietjk

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Would be wicked if they came out with an updated 789 with even better measurements:)
 

Rottmannash

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Would be wicked if they came out with an updated 789 with even better measurements:)
You mean, like the Monoprice version? The 887?
 

Jimster480

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Anyone know if this is discontinued? it hasn’t been available for a while.
I notice that it isn't available on Amazon or any other store it seems... according to Drop it has 23k requests but they haven't actually built it again.
 

Rottmannash

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Thanks for the tip. I googled the Monoprice. It’s in stock and cheaper than the Massdrop. Amir’s review of the Monoprice was quite positive too.
I bought one on sale several months ago in case my Massdrop amp went kaput.
 

Rottmannash

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Selarom

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Glad to hear a lot of you have been enjoying this amp for a long time. I can't say the same. The scratchy volume pot is a real problem. and trying to replace it is a challenge. The volume knob seems to be glued with epoxy to the stem. I keep it at a steady volume and control volume from the DAC. However, even with this issue, I enjoy the way it drives my HD600 like a boss.
 

Veri

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Glad to hear a lot of you have been enjoying this amp for a long time. I can't say the same. The scratchy volume pot is a real problem. and trying to replace it is a challenge.
Yeah mine got scratchy quite quickly, too. It's the same for both drop and monoprice variants though.
 

vaidd

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Glad to hear a lot of you have been enjoying this amp for a long time. I can't say the same. The scratchy volume pot is a real problem. and trying to replace it is a challenge. The volume knob seems to be glued with epoxy to the stem. I keep it at a steady volume and control volume from the DAC. However, even with this issue, I enjoy the way it drives my HD600 like a boss.
I had the same issue and found no way to cleanly swap the potentiometer. Instead, I cleaned & lubed it and it's been good for the last 1.5 years. More on my solution in #1491.
 
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