Sovtek
New Matched Quad (4) Sovtek 6550WE Vacuum Tubes
- SKU:
- NP158-4
- UPC:
- 6.45208E+11
- MPN:
- Quad 6550
- Availability:
- Ships in 1 business day or less.
- Shipping:
- Calculated at Checkout
Description
New Plate Current Matched Quad of Sovtek 6550WE Vacuum Tubes
The Sovtek 6550WE features a higher transconductance, higher output power, and an excellent sound performance. It will bring out that excellent range for any guitar amp.
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.
Additional Information
reverb_offers: |
off |
reverb_model: |
6550, 6550WE, 6550A, KT88 |
reverb_condition: |
Brand New |
reverb_shipping_profile: |
$24.99 |
reverb_upc_does_not_apply: |
on |
Item Type: |
Vacuum Tubes |
Production Era: |
New/Current Production |
1 Review
-
Happy as Larry
I replaced the stock Shuguang KT88's in my Chinese RFTLYS A2 amp with a set of the Sovtek 6550WE and to say I am happy would be an under statement. Detail has improved with a more all round natural sound, whereas before the treble could sound a little hard at times, these tubes just have a more airy feel. I don't know if this is just standard with most 6550 tubes since this is the first set I have heard, but would heartily recommend them. Would just like to add a thank you to Viva Tubes for shipping to Cambodia