Earth Tones SE Class A Single-Ended Vacuum Tube Stereo Amplifier 12AT7/6L6GC
Single-Ended Class A topology
12AT7 Driver Tube
2x 6L6GC Power Output Tubes
Toroidal Power and Output Transformers
8 and 4 ohm Speaker Outputs
5W RMS Per Channel into 8 ohms
Input Impedance: 100K Ohms
Frequency Response: (18Hz to 47KHz)
Input Sensitivity: 900mVRMS (for maximum output of 5W)
Hand made in the USA
When I inserted Jesse's new creation, the Earth Tones SE tube amplifier, into my reference system, I was stunned by its performance. This amplifier which is unbelievably priced at $995 was competing with one of my reference amplifiers, priced at $14,000, across the sonic board regarding clarity/micro-details, beautiful colors/tonality, 3D imaging and immense spatiality in the sound-stage, along with excellent bass control for SET design.
This was with the stock tubes that Pine Tree Audio ships with. When I put in a pair of NOS RCA Black Plate 6L6 GC and a Sylvania NOS 12AU7 Gold Brand into the Earth Tones SE amplifier the beauty of the music even went to a higher level of enjoyment. Congrats! This is a great amplifier and an unbelievable bargain based on what Jesse sells it for. The Earth Tones SE tube amplifier will be my pick for budget amplifier of the year for Stereo Times "MOST WANTED COMPONENTS" for 2025.
-Terry London, Stereo Times Senior Staff Reviewer
Front
Rear
Earth Tones SE Amplifier Factory Demo
Recorded at Pine Tree Audio 09-16-25
Please choose 1080p from the settings menu.
Please listen on headphones for best representation of this amplifier.
Speakers: Klipsch Heresy I (modified)
Preamplifier: Pine Tree Audio Model 67+
Earth Tones SE – 5W Single-Ended Class A Tube Amplifier
The Earth Tones SE is crafted for listeners who seek a natural, organic, and emotionally engaging connection with music. Delivering 5 watts per channel of pure Class A power, it pairs a single 12AT7 driver with a pair of 6L6GC output tubes in a single-ended configuration, offering effortless flow and harmonic richness.
Instead of relying on heavy global feedback, the Earth Tones SE employs refined local feedback. This preserves spaciousness, presence, and dynamic life while maintaining excellent stability and bandwidth. The result is music that feels unforced, immediate, and deeply alive.
Custom toroidal transformers provide wide frequency response and low distortion, achieving a measured 18 Hz – 47 kHz (–3 dB). Every note emerges with texture, air, and a vivid sense of space.
The hand-finished red oak side panels complete the amplifier’s natural character, blending artisan craftsmanship with technical refinement. With both 4 Ω and 8 Ω taps, the Earth Tones SE partners seamlessly with high-efficiency loudspeakers, bringing recordings to life with warmth and authenticity.
Topology: Single-ended, Class A, no global feedback
Driver Tube: 12AT7
Output Tubes: 2 × 6L6GC (one per channel)
Power Output: 5 W per channel
Transformers: Custom toroidal power and output
Frequency Response: 18 Hz – 47 kHz (–3 dB)
Speaker Taps: 4 Ω & 8 Ω
Cabinetry: Hand-crafted red oak sides
With the Earth Tones SE, music isn’t just reproduced — it’s experienced in its most natural and human form.