Calypso Amplifier
Best stereo amplifier for audiophiles seeking uncompromising, high-fidelity speaker performance.
The Calypso Amplifier by ampsandsound is a premier two-channel stereo amplifier, continuing their nautical naming tradition. It focuses exclusively on exceptional speaker performance, built on the core values of their monoblock designs. This Class A amplifier utilizes Tetrode wiring with subtle feedback for enhanced linearity, wider bandwidth, and increased dynamics. Its fourth-generation power supply ensures extreme quietness and massive current delivery. Housed in a heavily braced 12-gauge steel chassis, the Calypso is a true dual mono design, featuring two complete, separate amplifiers within a single unit.
$11202.00
Owner Satisfaction
4.8
/ 5
Category Rank
37
/ 1719
#37 in Power Amplifiers
Price vs Category Average
+36%
Above average
Type
Power Amplifier, Class A, Tube
/ Power Amplifier, Class A, Tube
Who it's for
- Audiophiles seeking rich, emotionally resonant tube sound
- Listeners pairing high-efficiency speakers or demanding planar headphones
- Collectors valuing hand-wired craftsmanship and long-term reliability
Who should skip it
- Budget-conscious buyers preferring mass-produced solid-state alternatives
- Users avoiding the maintenance costs and heat of tube gear
- Owners of modern, low-sensitivity speaker systems
Performance breakdown
Build Integrity
The 12-gauge steel chassis offers tank-like durability and vibration resistance.
Sonic Linearity
Tetrode wiring and subtle feedback deliver exceptional tonal accuracy and bandwidth.
Background Quietness
Fourth-generation power supply design ensures an impressively low noise floor.
Dynamic Range
Massive current delivery provides punchy, authoritative transients for demanding speakers.
Channel Separation
True dual mono architecture eliminates crosstalk for a wide, immersive soundstage.
Operational Simplicity
Pure analog design prioritizes performance over modern convenience features.
Key Specs
Type
Power Amplifier, Class A, Tube
Max Power @ 8ohm
10 watts RMS (with KT88s and 5AR4s)
Frequency Response
10Hz to 50kHz @ -1dB @ 1watt
Dimensions (DxWxH)
14" x 18" x 8"
Weight
70 lbs
Input Sensitivity
990mV with 12AX7 input
Noise @ 8ohm
720µV RMS
Tube Complement
Matched pair of 6L6GC STR or KT88, single 12AX7, two 5AR4 or 5U4 rectifiers
Features
- True dual mono amplifier architecture
- Class A operation with Tetrode wiring
- Ultra-quiet fourth-generation power supply
- Exceptional speaker performance focus
- Enhanced linearity and dynamics
- Massive current delivery capability
- Heavy-duty braced steel chassis
- Balanced connectivity
What customers say
The Calypso Amplifier earns high praise for its exceptional sonic performance and robust build quality. Owners consistently highlight its masterful sound signature, blending classic tube warmth with modern precision. It delivers lush midrange textures while maintaining outstanding detail and an expansive soundstage. A key feature is its immense power, effortlessly driving demanding planar magnetic headphones to unlock their full potential. The amplifier's construction is universally lauded as aesthetically pleasing and tank-like, reflecting its premium, hand-built nature. While the initial cost is high, users feel the superior performance and versatility justify the investment, viewing it as a long-term musical asset.
Know before you buy
A true dual mono design means the left and right channels are completely independent, each with its own power supply and circuitry. This eliminates crosstalk between channels, resulting in superior stereo separation, a wider soundstage, and more precise imaging.
The use of Tetrode wiring with subtle feedback enhances the amplifier's linearity and bandwidth. This configuration allows the Calypso to deliver increased dynamics and a more controlled, punchy sound while maintaining the natural warmth associated with Class A tube amplification.
The Calypso features balanced XLR inputs, making it compatible with any high-quality preamplifier that offers balanced outputs. Please note that it is a dedicated power amplifier, so it requires an external preamp or a source with volume control to function.
With 10 watts RMS per channel, the Calypso performs best with high-sensitivity speakers. It is designed to provide exceptional clarity and detail, making it an ideal match for efficient floor-standing or bookshelf speakers that do not require massive power to reach their potential.
As a tube-based design, the Calypso uses a specific complement of tubes—12AX7, 6L6GC STR or KT88, and 5AR4 or 5U4 rectifiers—that will eventually require replacement. Because it is a high-end Class A design, it is recommended to keep the unit in a well-ventilated area to manage the heat generated during operation.
No, the Calypso is not bridgeable. It is engineered as a dedicated two-channel stereo amplifier, and attempting to bridge the channels could damage the internal circuitry.
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$11202