Vincent Audio SV-237MKII Hybrid Stereo Integrated Amplifier

A Hybrid Amplifier — The Best of Both Worlds

An integrated amplifier is the heart of a stereo system. It takes the signal from your sources — turntable, CD player, streamer, even your phone — and boosts it so your speakers can fill the room. One box holds the preamp and power amp, so setup stays simple.

The Vincent Audio SV-237MKII is a hybrid: vacuum tubes in the preamp stage, solid-state transistors in the power amp stage. Tubes give a warm, natural sound; transistors add raw power and reliability — smooth tube character backed by real muscle.

Engineer Frank Blöhbaum designed the circuit, with one 12AX7 tube and two 6N1P-EV tubes up front. Four output transistors deliver 150 watts per channel into 8 ohms and 250 into 4 ohms — enough for almost any speaker, including floorstanders, planars, and electrostatics.

The first 10 watts run in pure Class A mode, widely seen as the best-sounding design, since the output stays "on" at all times, avoiding crossover distortion. Everyday listening rarely tops 10 watts, so you'll hear Class A sound most of the time.

Modern Features in a Classic Design

The MKII brings the SV-237 up to date with built-in Bluetooth 5.0 for wireless streaming from your phone, tablet, or computer.

For digital sources, an optical (Toslink) and a coaxial input each feed an upgraded Burr Brown PCM 5102 DAC — the chip that turns digital music into analog sound — supporting high-resolution audio up to 24-bit/192kHz.

The front panel keeps classic bass and treble tone controls, a bypass switch for an uncolored signal, and a loudness button so quiet listening doesn't sound thin.

What Reviewers Are Saying

The SV-237MKII has won praise across the hi-fi press. Craig Chase of Secrets of Home Theater and High Fidelity called it "a top-tier performer at a very competitive price." Noel Keywood of Hi-Fi World measured very low distortion and praised its "spacious, natural sound." The original SV-237 also won a Reference Award from Germany's i-fidelity.net.

Who Is This Amplifier Best For?

• You want tube warmth and solid-state power in one component — no separate preamp and power amp to manage.
• You're building a two-channel system and want one hub for every source.
• Your speakers need real power — floorstanders, planars, or electrostatics that demand high current.
• You want a built-in DAC and Bluetooth to stream without extra gear.

How Does It Connect to Your System?

Three stereo RCA inputs handle a CD player, a phono preamp, and one more source — there's no built-in phono stage, so vinyl fans need a separate phono preamp (we carry affordable Vincent Audio options).

The optical and coaxial inputs feed the built-in DAC for a TV, game console, or CD transport, and Bluetooth 5.0 covers wireless streaming.

Four pairs of speaker posts support bi-wiring or A/B switching, plus a preamp output, a record output, a headphone jack, two 12-volt triggers, and a full-function remote.

Pairs Well With

Building your system? Here are some great companions for the SV-237MKII:

• Speakers: This amp can drive just about anything. Browse our Floorstanding Speakers or Bookshelf Speakers.
• Phono Preamplifier: Spinning vinyl? See our Phono Preamps, including Vincent Audio options.
• Cables: Good cables matter at this level. Browse Speaker Cables and Interconnects.
• Audio Rack: At 45 lbs, it needs a sturdy home — see our Audio Racks.

Frequently Asked Questions

Does it have a built-in phono stage?

No — you'll need a separate phono preamp for your turntable. Call 800-942-0220 for a recommendation.

Can it drive large or power-hungry speakers?

Yes — 150 watts into 8 ohms and 250 into 4 ohms handles floorstanders, planars, and electrostatics.

How do I stream music wirelessly?

Select the Bluetooth input, pair your device, and play from any music app.

Can I connect a subwoofer?

Yes, through the rear-panel preamp output, so a powered sub can add bass.

How long do the tubes last?

Typically thousands of hours. They carry a 90-day warranty; the amp carries 2 years.

What else do I need to get started?

Just speakers and speaker cables — Bluetooth is built in.

See It in Action

Kevin Deal of Upscale Audio walks through the SV-237MKII's features, build quality, and hybrid design.

A British Audiophile takes an in-depth look at the SV-237MKII's sound and performance.

Why Audio Advisor?

• 40+ Years of Expertise — Since 1981, we've helped over a million music lovers find the right gear.
• 60-Day Money-Back Guarantee — Take your time. Listen, enjoy, and make sure it's right for you.
• Real Experts, Real Help — Our team is here to answer your questions at 800-942-0220, weekdays 9am–6pm EST.
• Free Shipping — On orders over $49, delivered to your door.
• Flexible Payment Options — Financing available so you can start listening now.

Learn More

Want to learn more about preamplifiers, tube audio, or building a two-channel system? Visit our Learning Center for guides, tips, and expert advice.