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Tube Hybrid Headphone Amplifier
The Most Serious Tube Design—Far Beyond its Price
Some inexpensive (and not-so-inexpensive) tube amps don’t use tubes to their full potential, “starving” them with low plate voltages or using op-amp buffers for output. Not Vali 2. Vali 2 uses a unique, class-leading power supply that gives us 60V on the plate. Combined with a fully discrete, current-mode noninverting hybrid topology, Vali 2 redefines what you can expect from an affordable tube amp, even at 2x its price.
Vali 2 is covered by a limited warranty that covers parts and labor for 2 years, and 90 days on the tubes. That’s 2x the coverage of most amps in this price range.
Serious Power, Gain Switching, Preamp Outputs
Vali delivers 1W into 32 ohms for hard-to-drive headphones—and, at the same time, offers a low gain mode for low-noise performance with sensitive headphones. You can also use the preamp outputs to add a tube preamp to your power amp or powered monitors.
Made in USA. Really.
By “made in USA,” we mean made in USA. The vast majority of the total production cost of Vali 2—chassis, boards, assembly, etc—goes to US companies manufacturing in the US. Our board house is 20 minutes away from our office in Newhall. Our chassis guys are just over the hill in the Valley. Yep, the wall wart is from China, but there you go. There is some give and take to reach this price point.
Roll Your Own Sound
Vali 2 is supplied with a single NOS 6BZ7 tube, which can be swapped for the same tubes we use in Lyr 2 and Mjolnir 2—feel free to use virtually any ECC88, 6922, 6DJ8, 2492, etc to “roll” the sound to your own preference. Plus, you only need a single tube, so rolling is easy and more affordable!
Frequency Response: 20Hz-20Khz, -0.2db, 5Hz-150KHz, -3dB
Maximum Power, 16 ohms: 1300mW RMS per channel
Maximum Power, 32 ohms: 1000mW RMS per channel
Maximum Power, 50 ohms: 650mW RMS per channel
Maximum Power, 300 ohms: 270mW RMS per channel
Maximum Power, 600 ohms: 140mW RMS per channel
THD: <0.03%, 20Hz-20KHz, at 1V RMS, low gain
IMD: <0.05%, CCIR, low gain
SNR: >99db, unweighted, referenced to 1V RMS, low gain
Crosstalk: -68dB, 20Hz-20KHz
Output Impedance: 1.2 ohms in low gain mode, 5.8 ohms in high gain mode
Gain: 5 (14dB) or 1.25 (2dB)
Topology: Tube voltage gain with convolved bipolar current mode inverter and discrete bipolar class AB output stage
Protection: delayed start and fast shut-down with muting relay
Power Supply: wall wart with 24VAC and 6VAC outputs, regulated HV and LV rails for tube and bipolar components, 6V AC heater
Power Consumption: 9W
Size: 5 x 3.5 x 2.75”
Weight: 1 lb