CAD-300SEI Vacuum Tube Integrated Amplifier

Unlock the realm of unparalleled realism and detail with SET—Single-Ended Triode—an insider secret revered by tube enthusiasts. The CAD-300SEI harnesses this technology to deliver a pure, natural musical experience, eliminating distortions and revealing rich layers of detail, a lush midrange, and captivating dimensionality. Despite its modest 15-watt total output, this amplifier excels where others falter, creating a backdrop of silence against which every musical nuance flourishes.

Quiet yet powerful, the CAD-300SEI unveils the true essence of your favorite recordings, allowing you to discern the subtlest details—from the resonant tones of a Steinway piano to the nuanced timbres of a Stradivarius violin. Uncover hidden intricacies and experience music in its purest form. Praised by Head-Fi enthusiasts worldwide as one of the best headphone amplifiers available at any price, its integrated headphone output offers uncompromising amplification, utilizing the amplifier's full circuitry for a transcendent listening experience. Elevate your audio journey with the CAD-300SEI—a testament to the timeless adage that simplicity is the ultimate sophistication.

Products purchased with an upgrade(s) are not eligible for return or credit, and sales are final. A 30-day audition does not apply.

In stock

Retail $6,495.00

Factory Direct $4,871.00

Sale $3,897.00

The following section describes the CAD-300SEI basic specifications. The specifications are subject to change without notice or obligation.

Circuit Type Single-Ended 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 51 lbs
Dimensions 8″ H x 14″ W x 14″ D