Agartha Rev 2
Best tube amplifier for audiophiles seeking rich, warm, and organic sound.
The Agartha 2 represents over five years of development, bringing Direct Heated Triodes to headphones without feedback. This iteration features Hum Pots, variable input transformers, and custom output transformers. The redesign incorporates 12AX7/12AU7 family tubes for the input, enhancing the quiet tube architecture, reducing noise floor, and increasing bandwidth and power. Its massive power supply and choke ensure trademark low noise, delivering stable output with a warm mid-range bloom characteristic of single-ended direct-heated triode designs.
$6500.00
Owner Satisfaction
4.6
/ 5
Category Rank
233
/ 807
#233 in Headphone Amplifiers
Price vs Category Average
+365%
Above average
Wood Chassis dimensions
15.759.75
/ " Wide x " Deep
Who it's for
- Audiophiles seeking rich, detailed, and emotionally engaging sound
- Collectors with diverse headphone collections needing versatile power
- Listeners valuing heirloom-quality craftsmanship and refined aesthetics
Who should skip it
- Budget-conscious buyers prioritizing value over premium luxury
- Users preferring low-maintenance, cool-running solid-state gear
- Desktop users with limited space for large audio equipment
Performance breakdown
Harmonic Richness
Direct-heated triodes deliver that signature warm, lush mid-range bloom.
Noise Floor
Massive power supply and choke design ensure whisper-quiet background performance.
Impedance Versatility
Variable input transformers handle diverse headphone loads with effortless precision.
Build Integrity
Hand-wound transformers and premium components reflect exceptional Southern California craftsmanship.
Frequency Extension
Wide bandwidth provides clear, detailed highs without sacrificing low-end authority.
Power Delivery
Seven watts of output easily drives even the most demanding headphones.
Key Specs
Wood Chassis dimensions
15.75" Wide x 9.75" Deep
Input sensitive
with 12AX7 input @ 1.4V P-P
Noise
@ 300ohm/HiZ 1.2mV RMS
Max Power @ 8ohm @ 7 watts RMS
Max Power @ 32ohm @ 5 watts RMS
THD 1Watt @ 1.360%
Ultra-wide bandwidth
12hz to 34khz @ 1 watt -1db
All ampsandsound amps are handmade in Southern California with custom hand-wound output transformers and U.S. sourced parts.
Features
- Direct Heated Triodes for headphone amplification without feedback.
- Variable input transformers allow for 1v:2v or 4v:2v input configurations.
- Utilizes 12AX7/12AU7 family tubes for a quiet input stage.
- Massive power supply and choke for trademark low noise performance.
- Designed to provide wide bandwidth and the warm mid-range bloom of single-ended designs.
- Handmade in Southern California with custom hand-wound output transformers.
- Uses high-quality 5% capacitors and 2% resistors.
What customers say
Customers consistently praise the Agartha Rev 2 by ampsandsound for its exceptional build quality and sophisticated design. Reviewers frequently highlight the robust construction and premium materials, suggesting a product built to last. The aesthetic appeal is also a recurring theme, with many appreciating its elegant and purposeful appearance. This combination of superior craftsmanship and thoughtful design contributes significantly to a highly positive ownership experience, reinforcing its status as a premium audio component.
Know before you buy
Direct Heated Triodes (DHT) are prized for their exceptional transparency and harmonic richness. By operating without feedback, the Agartha Rev 2 delivers a highly organic, natural sound with the signature warm mid-range bloom that single-ended tube amplifiers are famous for.
The variable input transformers allow you to choose between 1v:2v or 4v:2v configurations. This flexibility helps you match the amplifier's gain structure to your specific DAC or source component, ensuring optimal signal-to-noise performance and volume control range.
The Agartha Rev 2 features a redesigned input stage using 12AX7/12AU7 tubes and a massive power supply with a dedicated choke. These upgrades significantly lower the noise floor, making it well-suited for a wide range of headphones, though performance may vary depending on the extreme sensitivity of your specific pair.
Yes, with 7 watts RMS at 8 ohms and 5 watts RMS at 32 ohms, this amplifier has substantial power reserves. It is designed to handle a variety of headphone loads, including power-hungry planar magnetic models, while maintaining its characteristic wide bandwidth.
As with any tube-based amplifier, you will eventually need to replace the tubes as they wear out over time. The Agartha Rev 2 uses common 12AX7/12AU7 family tubes for the input stage, which are widely available and easy to source for future replacements.
The Agartha Rev 2 is a substantial piece of equipment with a wood chassis measuring 15.75 inches wide by 9.75 inches deep. You should ensure your desk or rack has enough surface area to accommodate its footprint and provide adequate ventilation for the tubes.
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