audioXpress: December 2004, vol.35, No.12

SINGLE-ENDED TO DIFFERENTIAL MODE MADE EASY 
The author invites you to join the "big league od sound reproduction" with this high-power tube amplifier configuration. By Norman Thagard.

H.V. DIFFERENTIAL AMPLIFIER 
You can`t beat the price of this do-it-yourself high voltage differential amp project for your measurement work. By Charles Hansen

GFP-565 PREAMP FOLLOW-UP MOD 
Here`s an upgrade to a four-part series that dramatically improves the performance of the Adcom GFP-565 preamp. By Gary Galo

THE GALO-MODIFIED GFP-565 PREAMPS - A SONIC EVALUATION 
By Lorelei Murdie

REBUILD A CLASSIC: HEATH`S W-5M 
Follow these tips to bring new life to the venerable Heath W-5M amp. By Bruce Brown

SONIC COMPARISON OF POWER AMPLIFIER OUTPUT VS INPUT 
This simple test method is "beyond compare" in determining a power amp`s I/O signal. By Dennis Colin

REMAKING TANG BAND`S W3-8881S 
This article focuses on the cone driver as the key to improved loudspeaker performance. Bt Mark McKenzie

2004 Index 
Listings this past year`s articles by category and author.

NEW CHIP ON THE BLOCK 
D2Audio Class D Audio modules by charles Hansen

• KEY TOPICS
• H.V. differential amplifier
• GFP-565 modified
• Rebuilding Heath W-5M
• Remaking Tang Band`s WS-881S
• SE to differential mode made easy
• D2Audio Class D Audio Modules
• BOOK SPECIFICATION
• paperback
• black and white print
• 72 pages
• 205mm x 267mm
• 170g

Price; £5.50 +vat +p&p