- Adcom GFP-750 Two-Channel Stereo Preamplifier
- Adcom Model GTP-600 Surround Sound Tuner/Preamplifier
- Alternate Audio BCAP Preamplifier and CA-35 Power Amplifier
- An Experiment with a Passive Six-Channel /volume Control for Surround Sound: The Kimber/DACT Design
- Anthem TLP-1 Two-Channel Preamplifier and PVA-2 Two-Channel Power Amplifier
- Audio Electronic Supply AE-1 and SE-1 class A tube preamp and power amp
- Audio Electronic Supply Solid State Preamplifier AE-2
- Audio Note M3 Stereo Tube Preamplifier
- Balanced Audio VK-5i Tube Preamplifier
- Balanced Audio Technology VK-31SE Stereo Tube Preamplifier
- Blue Circle Audio BC21.1 Stereo Tube Preamplifier
- Blue Circle BC3000 MKII Dual Mono Linestage Tube Preamplifier
- Bruce Moore Companion II-c Tube Preamplifier
- Bruce Moore Companion III Two-Channel Tube Preamplifier
- Bryston BP-26DA Stereo Preamplifier with Built-in DAC
- Cary Audio SLP-88 Tube Preamplifier
- Densen B-200 Stereo Preamplifier
- Diva Classic 100 Pro Tube Preamplifier
- Electronic Tonalities Foreplay $99 Tube Preamplifier Kit
- Emotiva RSP-1 Stereo Preamplifier and RPA-1 Stereo Power Amplifier
- Hart Audio Kits: Phono Preamplifier K1450
- InnerSound Solid State Stereo Preamplifier
- Lamm L2 Reference Stereo Hybrid Line-Stage Preamplifier
- Mark Levinson No 326S Stereo Preamplifier
- Manley Shrimp Stereo Tube Preamplifier
- Manley 300B Stereo Tube Preamplifier
- McCormack Audio ALD-1 and TLC-1 solid state preamplifiers
- Monolithic Sound PA-1 Line-Stage Preamplifier and PS-1 Phono Stage
- Music Labs Preamplifier and Power Amplifier
- NuForce P-9 Stereo Preamplifier
- Opera Audio Consonance Reference R1.1 Tube Preamplifier
- Parasound HALO P 3 Two-Channel Solid State Preamplifier
- Parasound P/SP 1000 AV Processor/Preamplifier
- Parasound P/LD 1100 Solid State Preamplifier
- PS Audio GCP 200 Stereo Preamplifier and GCA MC-500 Five-Channel (500 Watts per Channel) Power Amplifier
- Rogue Audio Perseus Tube Preamplifier
- Sound Valves VTP-101i Preamplifier
- Sunfire Classic Tube Preamplifier
- Switchman-2 Multi-Channel Preamplifier and Switcher
- Wright WLA-12A Tube Preamplifier
- Wyetech Labs Coral Stereo Tube Line Stage Preamplifier
- Wyetech Labs Pearl Stereo Tube Line Stage Preamplifier