audioXpress: December 2003, vol.34, No.12

CONTENTS

BUILD A BOOSTED TRIODE AMPLIFIER 
Here`s a clever circuit design that boosts the output power of a SE triode connected 6L6 or 807. By Larry Lisle

A HEDGEMAN SUBWOOFER 
This slightly different approach to good bass reproduction revives a 35 year old design. By Cornelius Morton

CONSIDERING NEGATIVE FEEDBACK: OP AMP SIMULATION OF A TUBE AMP FEEDBACK LOOP 
The author presents a tube amp simulation that investiages feedback effects. Bt Dennis Colin

MAKING YOUR OWN RUBBER SURROUND 
Follow this DIY approach to extending the life of your speaker, and even improve speaker response. By Angel Luis Rivera

WHY SPEAKERS HAVE SLANTED FRONTS, PART 1 
We begin an interesting series that examines the advantages of tipped front panels and how to design your own. By G.R. Koonce

ADCOM`S GFP-565 PRE-AMPLIFIER, PART 2 
The author continues with this modifications-showing you how to improve the sound of this classic preamp. By Gary Galo

ONKYO DV-SP800 
A look at the features of this new audio player that handles both DVD-Audio and SACD formats. Reviewed bt Gary Galo.

EDITORIAL
A look back on 35 years of publishing

INDEX
This past year`s articles arranged by category and author

GLASS SHARD
four unusual Electro-voice amps.

• KEY TOPICS
• Adcom`s GFP-565 upgrade
• Slanted front speakers
• Making rubber surround
• Subwoofer
• Boosted triode connected amps
• Onkyo DV-SP800
• BOOK SPECIFICATION
• paperback
• black and white print
• 72 pages
• 205mm x 267mm
• 170g

 Price; £3.50 +p&p