Cary Audio CAD 300SEI Tube Integrated Amplifier
Cary Audio CAD 300SEI Tube Integrated Amplifier

Cary Audio CAD 300SEI Tube Integrated Amplifier


Cary Audio


Integrated Amplifier


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Cary Audio CAD 300SEI Tube Integrated Amplifier

The Cary Audio CAD 300SEI is a 2 x 15W single-ended Class A integrated tube amplifier.

The best possible realism and detail comes when a tube amplifier is run in SET mode, or Single-Ended Triode. This lets one power tube handle both sides of each musical waveform, eliminating some of the most fatiguing distortions. It results in lower output power, naturally, but with high-efficiency speakers played at reasonable levels, its ultimate simplicity means the ultimate in musical naturalness.

With careful attention to design and construction, the CAD 300 SEI is extremely quiet, allowing the tiniest musical details to float against a background of dead silence. This will help you perceive more accurate sound staging and imaging cues, as well as the most realistic harmonic structure of each instrument. You can tell a Steinway from a Bösendorfer piano, a Stradivarius from a Guarneri or Amati violin, or a Fender from a Gibson guitar. You'll hear inner details of musical groups that you never knew were there. Sometimes the simplest IS the best, and the CAD-300SEI is a testament to that philosophy.


Circuit Type Single-Ended Pure Class A
Power Output 15 watts
Input Sensitivity .42 Volt for full output
Noise and Hum -90 dB below full output
Frequency Response 20 Hz to 23 KHz +/- .75 dB
Inputs CD, AUX1, AUX2, Headphone jack
Tubes 1 ea — 6SN7 Input
2 ea — 6SN7 Driver
2 ea — 300B Output
Power Transformer 1 ea — EI Laminate, 200% Duty Cycle
Output Transformer(s) 2 ea — EI Laminate Air Gap, 200% Duty Cycle
Resistors 1% Metal Film
Capacitors Polypropylene Film with hand-soldered copper terminals (optional upgrades available)
Power Supply Capacitors 2 ea — 1200µF@250 VDC
AC Cord 3 Conductor, Detachable
AC Power Requirements 117/234 VAC @ 50/60 Hz
Consumption 107 watts — Operation
Warm-Up Time 3 Minutes
Break-In Time 100 hours of playing time
Finish Anthracite black chassis with silver or black aluminum faceplate
Weight (kg) 24
Dimensions (mm) 203 H x 356 W x 356 D