Mullard 4003 12au7upscale audio platinum matched pairusedMullard 4003 12au7 upscale audio platinum matched pair Cryo treated.I have a beautiful matched pair of upscale audio grade mullard 4003 box plates tubes tubes. They are platinum grade tubes and cryo treated. They are awesome sounding tubes. I just don't use this ...75.00

Mullard 4003 12au7 upscale audio platinum matched pair Cryo treated.

Listing ID: lis5i2e8 Classified 
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Condition
9/10
Payment methods
Ships fromCoventry, RI, 02816
Ships toUnited States
Package dimensionsunspecified
Shipping carrierUSPS
Shipping cost$5.00
Original accessoriesBox
AverageResearch Pricing

I have a beautiful matched pair of upscale audio grade mullard 4003 box plates tubes tubes. They are platinum grade tubes and cryo treated. They are awesome sounding tubes. I just don't use this tube type any more. nice highs smooth mid band and great bass just a fantastic sound tube. They have a no more than 100 hrs on them, they are rated for 10,000 hrs they come in the original boxes with the upscale audio test results on the tubes boxes. I don't charge for PayPal and shipping is $5 within the USA

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