KT88-STR REDBASE TAD Premium Matched

Preview: RT894 Quartett (4 gematchte Röhren)

RT89 KT88-STR REDBASE TAD Premium Matched

From €295.80 *

*Prices incl. VAT plus shipping costs

In Stock, delivery time approx.1-4 working days (Within Germany)
The delivery times for shipping abroad can be found here.

Part Number: RT894
Packaging Size: 24x6x15 cm
Packaging Weight: 0.32 kg
UPC: 4251594901297

Our favourite Tube in the KT88 / 6550 Class TAD - KT88-STR REDBASE -... more

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Product information "KT88-STR REDBASE TAD Premium Matched"

Our favourite Tube in the KT88 / 6550 Class

TAD - KT88-STR REDBASE - analog sound in perfect audio-quality

High Performance Audio Beam Power Tetrode

Our new TAD KT88-STR REDBASE is built in the style of the early British MOV KT88 with the big and heavy glass envelope and beautifully polished metal base.

The REDBASE features a gold control grid for outstanding low-noise performance and reliable stability.

A breath-takingly big and precise tone and great appearance make the new TAD KT88-STR REDBASE the best choice for both, high-end audio

applications and powerful bass guitar amps, providing a natural and threedimensional tone with pleasingly full warmth and fine, subtle highs.

A very musical response, with great sound and finest details in mids and top-end; a linear and harmonious overall response with a very organic tone, make the TAD KT88-STR REDBASE our favourite tube in the KT88 and 6550A class.

Tube Type:	KT88
Selection:	Premium

Documents...

Available downloads:

Download TAD-Datasheet_KT88-STR-REDBASE-Version 1.2

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Here you will find the most important information about the matching of our tubes more

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Information about TAD Matching

Here you will find the most important information about the matching of our tubes

When does a tube become a Premium Selected tube?

Power tubes

All power tubes labeled Premium Selected have passed the following tests:

- Plate Current (PC) and Amplification (TC)

- Low Noise Test

- Microphonic Test

- Sonic Tests

- Shock Tests

- Listening Tests

- Shorts & Leakage Tests

Premium RT-Matching of Power Tubes

Our Premium Matching is an exact matching of power tubes with identical Plate Current (PC) and Transconductance (TC).

TAD Premium Selected tubes are guaranteed for a period of 6 months (according to terms of warranties)

for the quality criteria mentioned above.

Preamp tubes

All preamp tubes labeled Premium Selected have passed the following tests:

- Low Noise Test

- Microphonic Test

- Gain Test

- Sonic Tests

- Shock Tests

- Listening Tests

- Balanced Output Test

Premium Selected

We call the tubes SELECTED which have passed above tests and thus qualify as reliable all-round tubes of their type.Typically this is around 30-60% from a batch that receives the SELECTED label from TAD.

For applications in particularly sensitive functions such as V1 or input stage with combo amps, V1 in high-gain amps, tube microphones and phono preamps, we recommend using the respective HIGHGRADE selection

HIGHGRADE SELECTION

But only those tubes which pass these tests best are labeled Highgrades.Typically this is approx. 3-10% from a production batch that qualifies for the HIGHGRADE rating from TAD.

Due to the very high selection requirements, this article is temporarily only available to a limited extent! Please note our shop-information on availability.

Matching and Selecting Options for Preamp Tubes

Matching in Pairs for preamp tubes means that two tubes show identical gain, hence, four characteristically identical systems.

This matching method includes our Balance-Selection. We highly recommend this matching method for hi-fi systems.

TAD Premium Selected/Highgrade tubes are guaranteed for a period of 6 months (according to terms of warranties)

for the quality criteria mentioned above.