Tube Comparison Tool
Choosing the right audio tube has never been easier. With real world comparisons and real world measurements, these ratings use up-to-date sampling to determine statistical performances. No hype, just truth. Your satisfaction begins here.
| Electro-Harmonix 12AT7 |
 Electro-Harmonix 12AT7 EH Preamp Vacuum Tube
$23.95
|  |
| The Electro-Harmonix 12AT7 preamp vacuum tube presents a clear, uncolored tonality with a very strong amount of signal gain. Musical details are very accurate with strong headroom dynamics. Internal construction provides mild microphonics resistance. The EH 12AT7 is a good choice for reverb driver, line stage, and phase inverter positions. |
| JJ ECC81 / 12AT7 Preamp Vacuum Tube |
 JJ ECC81 / 12AT7 Preamp Vacuum Tube
$19.95
|  |
| The JJ ECC81 / 12AT7 preamp vacuum tube presents a warm, harmonically rich tonality with a medium amount of signal gain. Musical details are articulate with good signal compression. Solid internal construction provides excellent microphonics and tube rattle resistance. The JJ ECC81 / 12AT7 is equally good for reverb driver, line stage, and phase inverter positions as well as first position gain stages. |
| JJ ECC81 / 12AT7 Gold Pin Preamp Vacuum Tube |
 JJ ECC81 / 12AT7 Gold Pin Preamp Vacuum Tube
$37.95
|  |
| The JJ ECC81 / 12AT7 gold pin preamp vacuum tube presents a warm, harmonically rich tonality with a medium amount of signal gain. Musical details are articulate with good signal compression. Solid internal construction provides excellent microphonics and tube rattle resistance. The gold plated pins provide corrosion resistant surfaces for optimum signal transfer. The JJ ECC81 / 12AT7 is equally good for reverb driver, line stage, and phase inverter positions as well as the premier choice for first position gain stages. |
| NOS CV4024 (ECC81 / 12AT7) |
$49.95
|  |
| The new old stock (NOS) British Mullard made miltary grade CV4024 / ECC81 / 12AT7 preamp vacuum tube presents a warm tonality with a medium amount of signal gain. Good headroom and dynamics provide clear musical reproduction without muddiness. Internal construction provides fair microphonics resistance. The Mullard CV4024 is a great choice for reverb driver, line stage, and phase inverter positions. |
| JAN 12ATWC |
$29.95
|  |
| The new old stock (NOS) USA Philips made miltary grade (joint army navy - JAN) 12AT7WC preamp vacuum tube presents a clear tonality with a medium amount of signal gain. Good headroom and dynamics provide clear musical reproduction without muddiness. Internal construction provides good microphonics resistance. The JAN Philips 12AT7WC is a great choice for reverb driver, line stage, and phase inverter positions. |
| Sino 12AT7 |
$23.95
|  |
| The new production Sino 12AT7 preamp vacuum tube presents a crystalline tonality with a medium amount of signal gain. With great headroom and wide dynamics, musical signals sound clear without muddiness. Internal construction provides mild microphonics resistance. The new production Sino 12AT7 is a good choice for reverb driver, line stage, and phase inverter positions. |
| Tung-Sol 12AT7 / 6201 New Production |
 Tung-Sol 12AT7 / 6201 New Production Preamp Vacuum Tube
$29.95
|  |
| The new production Tung-Sol 12AT7 preamp vacuum tube presents a clear, uncolored tonality with a gentle amount of signal gain. With strong headroom and wide dynamics, musical signals are very transparent. Internal construction provides mild microphonics resistance. The new production Tung-Sol 12AT7 is a good choice for reverb driver, line stage, and phase inverter positions. |
| BLACK SABLE JJ ECC83 / 12AX7 Gold Pin |
 BLACK SABLE JJ ECC83 / 12AX7 Gold Pin
$149.95
|  |
| The BLACK SABLE JJ ECC83G preamp vacuum tube exhibits a warm, rich tonality with a gentle amount of signal gain and quick compression. The solid short plate design provides an articulate response with excellent microphonics resistance. The gold plated pins provide corrosion resistant surfaces for maximum signal transfer. These BLACK SABLE tubes are hand selected for low noise and microphonics as well as balanced internal triodes. The BLACK SABLE JJ ECC83G is the best choice for first gain stage positions but works equally well anywhere premium ECC83 / 12AX7 is needed. |
| BLACK SABLE Sovtek 12AX7LPS |
$99.95
|  |
| The BLACK SABLE Sovtek 12AX7LPS preamp vacuum tube exhibits a stable, clear tonality with a pleasant amount of signal gain and a full low-end response. AC filament hum is extremely low thanks to the unique spiral wound filament. The solid long plate design provides a wide headroom and quick signal dynamics. These BLACK SABLE tubes are hand selected for low noise and microphonics as well as balanced internal triodes. The BLACK SABLE Sovtek 12AX7LPS is recommended for line stages and phase inverter positions and for any application where a premium 12AX7 / ECC83 tube is preferred. |
| BLACK SABLE Tung-Sol 12AX7 Gold Pin |
 BLACK SABLE Tung-Sol 12AX7 Gold Pin
$99.95
|  |
| The new production BLACK SABLE Tung-Sol 12AX7 preamp vacuum tube presents a stable, uncolored tonality with a gentle amount of signal gain. Musical details sound clear, free of muddiness or brittleness. AC filament hum is extremely low thanks to the unique sprial wound filament and the solid short plate internal construction greatly reduces microphonics and tube rattle. The gold plated pins provide corrosion resistant surfaces for maximum signal transfer. These BLACK SABLE tubes are hand selected for low noise and microphonics as well as balanced internal triodes. The BLACK SABLE Tung-Sol 12AX7 is the premier choice for first gain stage positions, but works equally well anywhere a premium quality 12AX7 is needed. |
| Electro-Harmonix 12AX7 EH Preamp Vacuum Tube |
 Electro-Harmonix 12AX7 EH Preamp Vacuum Tube
$29.95
|  |
| The Electro-Harmonix 12AX7 preamp vacuum tube presents a stable, uncolored tonality with a gentle amount of signal gain. Musical details sound clear without muddiness or brittleness. AC filament hum is extremely low thanks to the unique sprial wound filament and the solid internal construction greatly reduces microphonics and tube rattle. The EH 12AX7 is the premier choice for first gain stage positions, but works equally well anywhere a premium quality 12AX7 is needed. |
| Electro-Harmonix 12AX7 Gold Pin Preamp Vacuum Tube |
 Electro-Harmonix 12AX7 Gold Pin Preamp Vacuum Tube
$39.95
|  |
| The Electro-Harmonix 12AX7 gold pin preamp vacuum tube presents a stable, uncolored tonality with a gentle amount of signal gain. Musical details sound clear without muddiness or brittleness. AC filament hum is extremely low thanks to the unique sprial wound filament and the solid internal construction greatly reduces microphonics and tube rattle. The gold plated pins provide corrosion resistant surfaces for maximum signal transfer. The EH 12AX7 is the premier choice for first gain stage positions, but works equally well anywhere a premium quality 12AX7 is needed. |
| Genalex - Gold Lion B759 / ECC83 / 12AX7 Preamp Vacuum Tube |
 Genalex - Gold Lion B759 / ECC83 / 12AX7 Preamp Vacuum Tube
$69.95
|  |
| The Genalex - Gold Lion B759 / ECC83 / 12AX7 Preamp Vacuum Tube presents a stable, clear tonality with a gentle amount of signal gain. Musical details are transparent with a faithful low end response. AC filament hum is extremely low thanks to the unique spiral wound filament. The long plate design provides a wide headroom and quick signal dynamics and the solid internal construction provides the lowest microphonics of all the long plate 12AX7 / ECC83 types. The gold plated pins provide corrosion resistant surfaces for maximum signal transfer. The Gold Lion B759 is the preferred choice for line stage and phase inverter positions, but works equally well anywhere a premium quality 12AX7 is needed. |
| Genalex - Gold Lion ECC83 / 12AX7 Preamp Vacuum Tube |
 Genalex - Gold Lion ECC83 / 12AX7 Preamp Vacuum Tube
$31.95
|  |
| The Genalex ECC83 / 12AX7 preamp vacuum tube presents a bright tonality with a medium amount of signal gain. Musical details are clear and articulate without being muddy sounding. Solid short plate construction greatly reduces microphonics and tube rattle. The Genalex ECC83 / 12AX7 is the preferred choice for first gain stage positions, but works equally well anywhere a premium quality 12AX7 is needed. |
| JJ ECC803s / Hi-Performance 12AX7 Preamp Vacuum Tube |
 JJ ECC803s / Hi-Performance 12AX7 Preamp Vacuum Tube
$24.95
|  |
| The JJ ECC803S preamp vacuum tube exhibits a warm and articulate tonality with a gentle amount of signal gain and soft compression. The long plate design provides a wider headroom with fair microphonics resistance. The JJ ECC803S is recommended for line stages and phase inverter positions. |
| JJ ECC803s / Hi-Performance 12AX7 Gold Pin Preamp Vacuum Tube |
 JJ ECC803s / Hi-Performance 12AX7 Gold Pin Preamp Vacuum Tube
$39.95
|  |
| The JJ ECC803G preamp vacuum tube exhibits a warm and articulate tonality with a gentle amount of signal gain and soft compression. The long plate design provides a wider headroom and fair microphonics resistance. The gold plated pins provide corrosion resistant surfaces for maximum signal transfer. The JJ ECC803G is recommended for line stages and phase inverter positions. |
| JJ ECC83 / 12AX7 Gold Pin Preamp Vacuum Tube |
 JJ ECC83 / 12AX7 Gold Pin Preamp Vacuum Tube
$34.95
|  |
| The JJ ECC83G preamp vacuum tube exhibits a warm, rich tonality with a gentle amount of signal gain and quick compression. The solid short plate design provides an articulate response with excellent microphonics resistance. The gold plated pins provide a corrosion proof surface for maximum signal transfer. The JJ ECC83G is a great choice for first gain stage positions, especially when harmonic gain is desired, but works equally well anywhere a quality ECC83 / 12AX7 is needed. |
| JJ ECC83s / 12AX7 Preamp Vacuum Tube |
 JJ ECC83s / 12AX7 Preamp Vacuum Tube
$19.95
|  |
| The JJ ECC83 preamp vacuum tube exhibits a warm, rich tonality with a gentle amount of signal gain and quick compression. The solid short plate design provides an articulate response with excellent microphonics resistance. The JJ ECC83 is a great choice for first gain stage positions, especially when harmonic gain is desired, but works equally well anywhere a quality ECC83 / 12AX7 is needed. |
| Mullard 12AX7 / ECC83 New Production Preamp Vacuum Tube |
 Mullard 12AX7 / ECC83 New Production Preamp Vacuum Tube
$34.95
|  |
| The Mullard 12AX7 / ECC83 new production preamp vacuum tube presents a stable, clear tonality with a pleasant amount of signal gain and a full low end response. AC filament hum is extremely low thanks to the unique spiral wound filament. This solidly constructed long plate design provides a wide headroom and quick signal dynamics and good microphonics resistance. The Mullard 12AX7 / ECC83 is the preferred choice for line stages and phase inverter positions, but works equally well anywhere a quality 12AX7 is needed. |
| Sino 12AX7B Preamp Vacuum Tube |
 Sino 12AX7B Preamp Vacuum Tube
$19.95
|  |
| The Sino 12AX7A preamp vacuum tube presents a crystalline tonality with gentle amounts of signal gain and a soft compression. Musical details are very articulate with no muddiness. The short plate construction keeps microphonics and tube rattle low. The Sino 12AX7A is an excellent choice for first gain stage positions, especially when heavy preamp distortion is desired, but works equally well anywhere a quality 12AX7 is needed. |
| Sovtek 12AX7LPS Preamp Vacuum Tube |
 Sovtek 12AX7LPS Preamp Vacuum Tube
$32.95
|  |
| The Sovtek 12AX7LPS preamp vacuum tube exhibits a stable, clear tonality with a pleasant amount of signal gain and a full low-end response. AC filament hum is extremely low thanks to the unique spiral wound filament. The solid long plate design provides a wide headroom and quick signal dynamics and fairly good microphonics resistance. The Sovtek 12AX7LPS is recommended for line stages and phase inverter positions. |
| Sovtek 12AX7WA Preamp Vacuum Tube |
 Sovtek 12AX7WA Preamp Vacuum Tube
$26.95
|  |
| The Sovtek 12AX7WA preamp vacuum tube presents a stable, uncolored tonality with a pleasant amount of signal gain. Musical details stand out with a slightly compressed headroom. Solid short plate internal construction greatly reduces microphonics and tube rattle. The Sovtek 12AX7WA is a great choice for first gain stage positions, but works equally well anywhere a quality 12AX7 is needed. This Sovtek 12AX7WA is one of the most widely used 12AX7 tubes found in new production amplifiers. |
| Sovtek 12AX7WB Preamp Vacuum Tube |
 Sovtek 12AX7WB Preamp Vacuum Tube
$34.95
|  |
| The Sovtek 12AX7WB preamp vacuum tube presents a stable, clear tonality with very strong amounts of signal gain. Musical details stand out with a slightly compressed headroom. The short plate construction greatly reduces microphonics and tube rattle. The Sovtek 12AX7WB is a great choice for first gain stage positions, especially when high amounts of gain are desired, but works equally well anywhere a quality 12AX7 is needed. |
| Sovtek 12AX7WC Preamp Vacuum Tube |
 Sovtek 12AX7WC Preamp Vacuum Tube
$32.95
|  |
| The Sovtek 12AX7WC preamp vacuum tube presents a bright, clear tonality with medium to strong amounts of signal gain. Musical details stand out with a slightly compressed headroom. Solid short plate construction greatly reduces microphonics and tube rattle. The Sovtek 12AX7WC is a great choice for first gain stage positions, especially when additional amounts of gain are desired, but works equally well anywhere a quality 12AX7 is needed. |
| Tung-Sol 12AX7 New Production Preamp Vacuum Tube |
 Tung-Sol 12AX7 New Production Preamp Vacuum Tube
$34.95
|  |
| The new production Tung-Sol 12AX7 preamp vacuum tube presents a stable, uncolored tonality with a gentle amount of signal gain. Musical details sound clear, free of muddiness or brittleness. AC filament hum is extremely low thanks to the unique sprial wound filament and the solid short plate internal construction greatly reduces microphonics and tube rattle. The Tung-Sol 12AX7 is the premier choice for first gain stage positions, but works equally well anywhere a premium quality 12AX7 is needed. |
| Tung-Sol ECC803s 12AX7 Gold Pin Preamp Vacuum Tube |
 Tung-Sol ECC803s 12AX7 Gold Pin Preamp Vacuum Tube
$47.95
|  |
| The new production Tung-Sol 12AX7 preamp vacuum tube presents a stable, uncolored tonality with a gentle amount of signal gain. Musical details sound clear free of muddiness or brittleness. AC filament hum is extremely low thanks to the unique sprial wound filament and the solid short plate internal construction greatly reduces microphonics and tube rattle. The gold plated pins provide corrosion resistant surfaces for maximum signal transfer. The Tung-Sol 12AX7 is the premier choice for first gain stage positions, but works equally well anywhere a premium quality 12AX7 is needed. |
| BLACK SABLE JJ E88CC / 6922 Gold Pin |
 BLACK SABLE JJ E88CC / 6922 Gold Pin
$149.95
|  |
| The Black Sable JJ E88CC / 6922 gold pin preamp vacuum tube presents a harmonically rich tonality with a medium amount of signal gain. Wide headroom and delicate compression provide excellent articulation and listening ease. Solid internal construction provides extremely low microphonics and tube rattle. The gold plated pins provide corrosion resistant surfaces for optimum signal transfer. These BLACK SABLE tubes are hand selected for low noise and microphonics as well as balanced internal triodes. The Black Sable JJ E88CC / 6922 with gold pins is the first choice for any position requiring a premium quality 6922. |
| Electro-Harmonix 6922 EH Preamp Vacuum Tube |
 Electro-Harmonix 6922 EH Preamp Vacuum Tube
$32.95
|  |
| The Electro-Harmonix 6922 preamp vacuum tube presents a clear tonality with a strong amount of signal gain. Excellent headroom and wide dynamic range provide signal transparency and clarity. Solid internal construction provides very low microphonics and tube rattle. The Electro-Harmonix 6922 is a great choice for any position requiring a quality 6922. |
| Genalex - Gold Lion E88CC / 6922 Preamp Vacuum Tube |
 Genalex - Gold Lion E88CC / 6922 Preamp Vacuum Tube
$74.95
|  |
| The new production Genalex - Gold Lion E88CC / 6922 preamp vacuum tube presents a clear tonality with a very strong amount of signal gain. Excellent headroom and wide dynamic range provide signal transparency and clarity. Solid internal construction provides extremely low microphonics and tube rattle. The gold plated pins provide corrosion resistant surfaces for optimum signal transfer. The Genalex - Gold Lion E88CC / 6922 is a great choice for any position requiring a premium quality 6922. |
| JJ E88CC / 6922 Preamp Vacuum Tube |
 JJ E88CC / 6922 Preamp Vacuum Tube
$27.95
|  |
| The JJ E88CC / 6922 preamp vacuum tube presents a harmonically rich tonality with a medium amount of signal gain. Wide headroom and delicate compression provide excellent articulation and listening ease. Solid internal construction provides extremely low microphonics and tube rattle. The JJ E88CC / 6922 is a great choice for any position requiring a quality 6922. |
| JJ E88CC / 6922 Gold Pin Preamp Vacuum Tube |
 JJ E88CC / 6922 Gold Pin Preamp Vacuum Tube
$34.95
|  |
| The JJ E88CC / 6922 gold pin preamp vacuum tube presents a harmonically rich tonality with a medium amount of signal gain. Wide headroom and delicate compression provide excellent articulation and listening ease. Solid internal construction provides extremely low microphonics and tube rattle. The gold plated pins provide corrosion resistant surfaces for optimum signal transfer. The JJ E88CC / 6922 with gold pins is a great choice for any position requiring a premium quality 6922. |