- Home Page /
- Musical Instruments /
- Musical Instrument Accessories /
- Guitar Accessories /
- Amplifier Accessories /
- Parts /
- Tubes /
- 6550-TK Black Diamond Series Vacuum Tube Matc...
0 ratings
Item #:
202815974
6550-TK Black Diamond Series Vacuum Tube Matched Pair
Item #:
202815974
PHP 16917
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Tuesday, July 28
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Each tube is rigorously tested, cryogenically treated and extensively burned-in to ensure reliability.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Matched Pair
Ensures optimal performance and consistent sound quality, providing exceptional audio fidelity favored by audiophiles and musicians alike.
Black Diamond Series
Offers superior build quality and premium materials to enhance durability, ensuring long-lasting use while delivering warm, rich tones.
Versatile Compatibility
Designed to integrate seamlessly with various amplifiers and audio equipment, making it an ideal choice for both home and studio environments.
Product Details
| Country of Origin | This item will be imported from US |
| What is in the box | 6550-TK Black Diamond Series... For more details, please check description/product details |
Who Should Buy?
-
Audio Enthusiasts
Ideal for audiophiles seeking superior sound quality and performance in their audio systems using vacuum tubes.
-
Guitar Amplifiers
Perfect for guitarists wanting to enhance their amp's tone and warmth with quality matched vacuum tubes.
-
Hi-Fi Systems
Great for high-fidelity audio systems requiring reliable, matched pairs for consistent performance in sound reproduction.
-
Budget Shoppers
Not suitable for users looking for low-cost alternatives as these tubes come at a premium price.
-
Casual Listeners
May not be appreciated by casual listeners who do not notice differences in audio quality or performance.
-
Solid-State Users
Not recommended for users of solid-state equipment, as they won’t benefit from vacuum tube characteristics.
Product Description
6550-TK Black Diamond Series Vacuum Tube Matched Pair
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the output power of the TELEFUNKEN 6550-TK?
Answer: The TELEFUNKEN 6550-TK delivers up to 35 watts. -
Question:
Are the tubes tested for reliability?
Answer: Yes, each tube is rigorously tested and cryogenically treated to ensure reliability. -
Question:
Can these tubes be used in any amplifier?
Answer: It is essential to consult with the equipment manufacturer or a qualified technician for proper tube selection.
TELEFUNKEN Tubes Editorial Review
No editorial reviews found
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Platform Trust & Buyer Confidence
MT
Mohd
Verified buyer
“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer
“Accurate delivery timing given”
16 June 2026 · via Trustpilot
YB
Youcef
Verified buyer
“Not madly expensive like I thought, and much quicker than promised.”
15 June 2026 · via Trustpilot
LM
Leila
Verified buyer
“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”
6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer
“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
PHP 16917
Order now and get it around Tuesday, July 28
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Manufactured in partnership with JJ Electronic for superior quality.
- Designed for harmonic richness and tonal balance.
- High output power tube ideal for guitar amplifiers.
- Delivers up to 35 watts effortlessly, based on 6L6 design.
- Guaranteed performance with rigorous testing and cryogenic treatment.
- Perfect for musicians seeking reliable and stable sound.
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.