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New (to me) Grant Fidelity 2A3 amp... wow.

JoeDotCom

JoeDotCom

Super Member
I picked up a Grant Fidelity MS-2A3 Integrated from a local AKer yesterday. (I wont namedrop unless he cares to chime in :smoke: ) I researched this unit quite a bit before making the purchase. I have to say WOW. It sounds great and is about 1.5 times as large (physically) as I thought it was going to be. I was not able to find many photos of this unit because there were only TWO of these units produced for Grand Fidelity as sample amps.

from: http://www.grantfidelity.com/site/Grant_Fidelity_MS2A3_integrated_tube_amplifier
This 2A3 amp was a by-product during our design process of the A-534 single ended triode 300B tube amp. To overcome the 300B tube's limited power but still maintain the sweet sound and details, 2A3 tubes are used in this amplifier to get output power to 14 watts per channel. The A-534 ended up using EL34 tubes to improve output so we never had the need to launch this 2A3 amp.
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I wanted to share some photos of the MS-2A3 up along side my Pioneer SX-980 for a nice size and style contrast. The amp is running a quad of Shuguang 2A3C. Looking at photos, I can see this amp looks a lot like the Yaqin MS-2A3. However, Grant Fidelity mentioned that their version of the amps that were produced were designed to GF's own specifications.

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hibuckhobby said:
Looks great Joe! Glad you like it. How's it do with those Avid's?
Bob
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I tried the Avids and they did not work with the amp very well. so I may go back and try connecting them to the other tap. the pioneers sounds awesome, and I plan to try the polks soon as well.

I wanted to add some other pictures. I have not been able to find many under the hood photos ok this amp under its various brand names.

I was having some trouble with the amp's power transformer. it had a mechanical hum ( so not through the speakers). so I took the amp apart and removed the power transformers cap. thankfully removing the cap has nearly eliminated the hum. the next question is can I get the cap back on and still keep calm down. For now, I am enjoying her "topless". :)


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Sent (and possibly poorly voice-to-text transcribed) on a mobile device. :)
 
I was also having some trouble with the remote. it is heavy duty and awesome. but the way the buttons were designed it rattles a bit when you move it around. so I took it apart and added some padding to hold the button in place better. I want to get some better rubber or something but I use to what I had on hand.

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now it is acting more like a remote and less like a tambourine. :)



Sent (and possibly poorly voice-to-text transcribed) on a mobile device. :)
 
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last night was jazz, so tonight is electronica!

Sent (and possibly poorly voice-to-text transcribed) on a mobile device. :)
 
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