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PSVANE Treasure KT88-Z matched pair main product image

PSVANE Treasure KT88-Z Power Tube Matched Pair

Black-glass KT88 pair for compatible push-pull output stages

$125.99
In Stock
Tube Type:KT88
Brand:PSVANE
Format:Matched Pair (2 pcs)

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Description

The PSVANE Treasure KT88-Z is a black-glass KT88-family output tube pair for compatible push-pull integrated amplifiers and power amplifiers. The current PSVANE official store does not list a dedicated Treasure KT88-Z page, so unverified numeric operating limits are not included.

Treasure KT88-Z replacement notes

  • PSVANE Treasure KT88-Z is a matched KT88 pair for compatible push-pull output stages that specify KT88-family power tubes.
  • The Treasure version is a different series choice from AIR KT88-AT, so it should have its own title, FAQ, and buying notes.
  • KT88 compatibility depends on the amplifier circuit, socket wiring, heater capacity, and bias range, not only the tube base.

Before ordering Treasure KT88-Z

  • Order the quantity your amplifier requires: matched pair for two output tubes or matched quad for four output tubes.
  • Confirm whether the amplifier manual allows KT88 and whether bias must be adjusted after installation.
  • Use the contact form before checkout if you are replacing 6550, EL34, or another nearby output tube label.

Compatibility

Use in KT88 positions in compatible amplifiers. Some amplifiers can support related families such as 6550, but substitution must follow the amplifier manual, socket wiring, and bias range.

Sound Signature

Warm, full, and controlled with the black-glass Treasure presentation aimed at quiet backgrounds, saturated midrange, and confident output-stage drive.

Testing & Matching

Sold as a 2-piece matched pair. Numeric electrical limits should be confirmed against the amplifier manual or official PSVANE documentation before installation.

Shipping & Warranty

Shipping

Ships within 1-2 business days. International shipping available.

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Warranty

90-day warranty against manufacturing defects. DOA coverage included.

View warranty policy ->

Buying questions

What does PSVANE Treasure KT88-Z replace?

PSVANE Treasure KT88-Z replaces KT88 output tube positions in compatible amplifiers that call for KT88-family tubes.

Is Treasure KT88-Z a matched pair?

This product is listed as a matched pair. Choose a matched quad if your amplifier uses four KT88 output tubes.

Can Treasure KT88-Z replace 6550?

Some amplifiers support both KT88 and 6550, but the manual or manufacturer should confirm the substitution before ordering.

What amplifier type is Treasure KT88-Z for?

PSVANE Treasure KT88-Z is mainly for compatible push-pull hi-fi amplifiers and output stages designed for KT88 tubes.

Should I check bias before replacing KT88 tubes?

Yes. Bias should be checked whenever the amplifier design requires it after output tube replacement.