Pass Labs XA-25 PURE Class A Amplifier - NEW

PASS LABS XA-25 SILVER

MSRP $5,665

Brand new sealed in box - Shipped directly from Pass Labs!

Fly Hifi Stereo is Pass Labs' hometown dealer here in Auburn California.

Feel free to call the shop with any questions or special requests.

The new XA25 offers this at slightly lower power, without frills, at a lower price. It embodies new components and innovative circuits coupled with the best elements of the previous generation.

The signal path from input to output has been simplifi ed to fewer components. Degeneration, “the other form of feedback” has been eliminated. The output stage consists of a single pair of 800 watt new generation output transistors operating push-pull Class A. We still use the same “New Old Stock” of small power JFETs and cascoded MOSFET, in the classic “CFA” voltage gain circuit. The amplifi er is still DC coupled and has no frequency compensation.

The result is faster, lower distortion, lower noise, higher damping and larger Class A operating envelope into low impedance loudspeakers, all in a simple 3 stage circuit with total of three pair of push-pull gain transistors.

In their ideal state, matched push-pull FETs give perfect “square law” cancellation of distortion, an effect somewhat spoiled by degenerative Source resistance used to constrain the “personality” of the devices. The removal of this form of feedback is an important element in the performance of the XA25 and is accomplished by new approaches to stabilizing gain and bias of push-pull FETs.

This gives a lower output impedance, more gain, and lower spectral content of distortion, as evidenced by measurements (see the specs section), but the more important factor is the difference it makes to the music.

We observed this difference some years ago in listening tests. Degeneration removed some of the organic quality to the sound and so became the subject of further development work.

The XA25 measures superbly, but its subjective qualities are most special. In an industry where products with great specs are frequently found to be dry and boring, this amplifi er breathes life into the music.

SPECS AT A GLANCE

• Class / Type: Class A, Stereo
• Power: 25 W / 8 Ω (per channel)
• Gain: 20 dB
• Inputs: RCA
• Power consumption: 240 W
• Chassis: 1 | Weight: 48.5 lbs

All Pass Laboratories products purchased new from an authorized Pass Laboratories dealer in North America are covered by a transferable, limited 3-year warranty. This warranty includes all parts and labor charges incurred at the factory or factory specified repair facility, exclusive of any subsequent or consequential damages. Damage due to physical abuse is specifically excluded under this warranty.

For this warranty to apply the customer is responsible for returning the product unmodified to the factory within the specified warranty period. The customer assumes all responsibility for shipping and insurance to and from the factory or a factory specified repair facility. The conditions and stipulations of this Pass Laboratories warranty only applies to units originally sold new through an authorized dealer. Warranty on factory repair is 60 days and covers only the scope of the original repair.

FREE SHIPPING WITHIN THE LOWER 48!

PLEASE NOTE - ALL PASS LABS AND FIRST WATT UNITS ARE BUILT TO ORDER!

PLEASE ALLOW FOR BUILD TIME PRIOR TO SHIPMENT.
FEEL FREE TO REACH OUT FOR BUILD TIME ESTIMATES PRIOR TO PURCHASE.

INTERNATIONAL BUYERS - PLEASE CALL OR MESSAGE.

The item is also available for pickup at Fly Hifi Stereo Store in Auburn CA.