Vincent Audio SP-T700 Hybrid Mono Amplifier - Silver - Each

A Tube Front End and 150 Watts

The SP-T700 is a hybrid mono amplifier. A valve input stage feeds a transistor output stage, so you get the character of tubes at the front and the grip of solid state at the speaker. Each chassis drives one speaker.

Power is 150 watts into 8 ohms and 300 watts into 4 ohms, and the first 10 watts into 8 ohms run in Class A. That first stretch covers a great deal of ordinary listening, which is where the design puts its best behavior.

Three tubes do the work up front: a 6S3P-EV, a 6SCH9P and a 6Z4. They sit behind a heavy casework that weighs 16kg per chassis, and the amplifier is offered in black or silver.

This listing is the silver finish, sold as a single amplifier rather than a pair. A stereo system needs two of them, and because they are sold individually you can buy the second whenever it suits you.

Inside the Chassis

Hybrid, Not Half-Hearted

Vincent developed a new combination amplifier for the SP-T700 rather than bolting a valve onto an existing design. The tubes are 100% selected frame-grid types from the military sector, rated for 10,000 hours, and performance holds steady across the whole frequency and load range.

On the Bench

Distortion is below 0.01% at 1kHz and one watt, rising only to 0.1% at 25 watts. Frequency response runs 20Hz to 20kHz within half a decibel, signal-to-noise is better than 90dB, and input impedance is above 22k ohms.

Power Control

A pair of 3.5mm jacks let one unit switch the other on and off, so a stereo pair powers up together from a single trigger. Maximum draw is 306 watts per chassis.

Who Is This Mono Amplifier Best For?

• Listeners who want tubes without tube worries — Vincent fits selected military frame-grid tubes rated for 10,000 hours, so you get the tonal character of valves without a retubing bill arriving every couple of years.
• Owners of speakers that drop to 4 ohms — 300 watts into 4 ohms from a single chassis per side means the amplifier holds on where many valve designs run short, so your speaker choice stays open.
• Anyone who listens at moderate levels — The first 10 watts into 8 ohms run in Class A, and that covers most of an evening's listening, so the amplifier is at its best when you actually use it.
• People building a system one piece at a time — Each SP-T700 is sold individually, so you can buy one now and the second when it suits, and end up with a matched mono pair rather than a compromise.
• It takes RCA only, so check your preamp — The input is a single mono RCA socket. If your preamp is balanced and you were planning on an XLR run, plan on RCA interconnects instead and keep the cable short. Our interconnect cables cover both.

How Does It Connect to Your System?

Run one RCA cable from the left output of your preamp to one amplifier and the right output to the other. Each amplifier then drives the speaker beside it through its own set of binding posts, two pairs per chassis.

Link the two amplifiers with a 3.5mm cable between the power control jacks and they will switch on together. As with any power amplifier, the volume control lives in your preamp.

Pairs Well With

A mono pair needs a preamp and two of most things. Here is the short list.

• Preamplifiers — any preamp with RCA outputs will drive a pair. Browse preamplifiers.
• Interconnect cables — two RCA runs, one to each amplifier. Browse interconnect cables.
• Speaker cables — short runs, since each amp stands by its speaker. Browse speaker cables.
• Floorstanding speakers — 300 watts into 4 ohms suits full-range designs. Browse floorstanding speakers.

Frequently Asked Questions

How much power does one make?

Each SP-T700 is rated at 150 watts RMS into 8 ohms and 300 watts into 4 ohms, with the first 10 watts into 8 ohms running in Class A. Those figures are per chassis, driving a single speaker.

Which tubes does it use?

Three per chassis: one 6S3P-EV, one 6SCH9P and one 6Z4. Vincent specifies 100% selected frame-grid tubes from the military sector, rated for a service life of 10,000 hours. At three hours of listening a day that is the better part of a decade.

What inputs does it have?

Each amplifier takes a single mono RCA input, plus a 3.5mm power control jack in and out so a pair can be switched on together from one signal.

How many do I need?

One per speaker, so a stereo system uses two. They are sold individually here, which lets you buy them one at a time and still end up with a matched pair.

How big and heavy is it?

Each chassis measures 210mm wide by 263mm high by 400mm deep, roughly 8.3 by 10.4 by 15.7 inches, and weighs 16kg or about 35 pounds. It is tall and narrow rather than wide.

What warranty does it carry?

Vincent covers the SP-T700 with a two-year warranty in the United States. Keep your receipt, since cover runs from the date of purchase.

See It in Action

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Learn More

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