Description

One of the highest-output 8-pin pentodes available. Originally manufactured in the United States by G.E.®, it delivers 35 to 50 watts per tube and was original equipment in amps during the ’70s and early ’80s. A big, clean, tight tube with amazing headroom and performance and great power and dynamics. A similar tube is the KT88 (used by Sunn® and others). The highest-output power tube in this family.

Our highest-output 6550 is slightly easier to push into distortion than the original G.E. version and has a harder response than the "C" for tighter, quicker response. Good for bass amps and metal, when more pronounced note definition is desired with just a touch of distortion.

Matched sextet of GT-6550-R tubes rated from power range 1-10. Each sextet has a specific rating (i.e. R2, R7, etc.). Tubes are matched and biased to a specific output level.

  • R1-R3 = Low: Early distortion, wide range, softer attack good for Rock and Blues solos.
  • R4-R7 = Medium: Normal performance, great dynamic range/attack and best all around rating type for all styles of playing
  • R8-R10 = High: Most dynamic range, most clean power/less break-up for power players, Jazz and bass amps.


Please review item descriptions to ensure proper ordering.

Series Other Power Tubes
Dimensions 7.38x8x5.5 IN
Weight 0.54 kg
Product Type Tubes

Specifications

SKU
5550113624
Brand
Groove Tube

Please Note: This item may be on display at the Mooloolaba Music Shop and may have been available for demonstration to in store patrons. We take careful and meticulous care, boxing and cleaning of your product before the shipping or selling of an item. If you do want photos before making a purchase please call our shop where one of our staff can assist in sending more detailed images.

Mooloolaba Music reserves the right to cancel, at any time before delivery and for whatever reason, an Order that it has previously accepted. Mooloolaba Music may do this for example, but without limitation, where:

a) Mooloolaba Music's suppliers are unable to supply Goods that they have previously promised to supply
(b) an event beyond Mooloolaba Music's control, such as storm, fire, flood, earthquake, terrorism, power failure, war, strike or failure of computer systems, means that Mooloolaba Music is unable to supply the Goods within a reasonable time
(c) Goods ordered were subject to an error on the Website, for example, in relation to a description, price or image, which was not discovered prior to the Order being accepted;
(d) The products shown in the images above product may differ to the purchased product. Changes could include, different stands, treatments, slight variations in colour, In-built batteries and charging ports. Please contact our team for further clarification.

We ask that you research parts carefully before buying.
Purchase of any non-licenced part as a replacement spare part is at your own risk.
Some branded replacement parts also require professional installation to fit correctly.
If in doubt we will be happy to advise further and confirm suitability before purchase.

Reviews

Groove Tube

Se Groove Tubes GT-6550-r Med Sextet

Read reviews · SKU 5550113624
$675.00
Price includes GST


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