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CHRISTMAS SALE   |  10% OFF ALL MULLRD, EHX & TUNG-SOL TUBES  |  15-25% OFF SELECT TUBES

25% OFF Mullard 12AX7, Tung-Sol 12AX7   |   20% OFF Mullard EL34, Genalex 12AX7, EHX EL34   |   15% OFF Genalex KT88 & More

Through 1/8/2025

Electro-Harmonix

New Matched Quad (4) Electro-Harmonix 12AX7 Vacuum Tubes

10% OFF
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SKU:
NP027-4
UPC:
735757043818
MPN:
Quad 12AX7
Shipping:
Calculated at Checkout
On Sale
Now: $70.07
Was: $77.86
Frequently bought together:

Description

New Gain Matched Quad of Electro-Harmonix 12AX7 Vacuum Tubes

The EHX 12AX7 has become a standard, known for it's high gain and excellent mids and bass. It has a spiral wound filament to help cut down on noise and hum just like the vintage 7025 or 12AX7A tubes. These are one of the best deals around; you get rich tone for less!

Will work in place of: 12AX7, ECC83, 12AX7A, 7025, 12AX7WA, 12AX7WC, 12AX7WB, ECC803S, CV4004, CV492, 12AX7EH

Testing and/or Matching

At VIVA TUBES, all of our customers get the same high standard of testing and matching. Some sellers charge more for premium matches but we believe all of our customers should get the same level of quality and service. 

Tubes are tested and/or matched at full operating voltage with regulated power supply on a Maxi Matcher tester for general mutual transconductance (Gm). In addition, power tubes are tested/matched by plate current (Ip) and preamp tubes are tested/matched by gain. Rectifier tubes will be tested for emissions on a calibrated military grade tube tester. 

Our goal is to match within 5% with an upper limit of 15% (15% is the industry limit to consider a set).

Hand written test data included.

Note that we do offer a few models which are tested & matched at the factory. They will be matched by the same parameters (Ip & Gm) but to the manufacturer's standards. Factory testing will be indicated in the item title and description. 

Guarantee

We offer a minimum 90 day guarantee covering functional defects - including noise unless otherwise stated. The guarantee period begins the day you receive your order.

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Additional Information

reverb_offer:
offreverb_condition=Brand New"
reverb_shipping_profile:
$12.99
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on
Item Type:
Vacuum Tubes
Production Era:
New/Current Production
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