 | Adcom GFP-750 preamplifier
Wes Phillips, Vol.22No.3, March, 1999 |
| Aunt Corey's Homemade Buffered Passive Preamplifier
Corey Greenberg, Vol.14No.11, November, 1991 |
| Ayre Acoustics K-1 preamplifier
Wes Phillips, Vol.20No.3, March, 1997 |
| Balanced Audio Technology VK-40 preamplifier
Robert Deutsch, Vol.24No.7, July, 2001 |
| Boulder 810 line preamplifier & 860 power amplifier
Fred Kaplan, Vol.30No.12, December, 2007 |
| Boulder 1012 D/A preamplifier
Jonathan Scull, Vol.24No.12, December, 2001 |
| Boulder 2008 phono preamplifier & 2010 preamplifier
Michael Fremer, Vol.25No.7, July, 2002 |
| Bryston BP25-MC preamplifier
Larry Greenhill, Vol.19No.10, October, 1996 |
| Burmester 011 preamplifier
Brian Damkroger, Vol.28No.7, July, 2005 |
| Cello Palette Preamplifier
Lewis Lipnick, Vol.15No.6, June, 1992 |
| Classé Omega line-level preamplifier
Jonathan Scull, Vol.22No.7, July, 1999 |
| Conrad-Johnson Premier 18LS line preamplifier
Larry Greenhill, Vol.25No.12, December, 2002 |
| Final Laboratory Music-4 phono preamplifier, Music-5 line preamplifier, & Music-6 power amplifier
Art Dudley, Vol.26No.1, January, 2003 |
| Grace Design m902 Reference D/A headphone amplifier
Wes Phillips & John Atkinson, Vol.29No.4, April, 2006 |
| Hafler Iris preamplifier
John Atkinson, Vol.12No.6, June, 1989 |
| Halcro dm10 preamplifier
Paul Bolin, Vol.27No.4, April, 2004 |
| Harman/Kardon Citation Eleven preamplifier
J. Gordon Holt, Vol.3No.4, April, 1977 |
| Mark Levinson No.326S line preamplifier
John Atkinson, Vol.29No.1, January, 2006 |
| HeadRoom BlockHead headphone amplifier
Jonathan Scull, Vol.25No.7, July, 2002 |
| HeadRoom Max headphone amplifier
Wes Phillips, Vol.20No.2, February, 1997 |
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