Parasound NewClassic 2250 v.2 Two Channel Power Amplifier - Black

Two Hundred and Seventy-Five Watts, Into Almost Anything

The 2250 v.2 is the bigger NewClassic, and the numbers say why. It makes 275 watts per channel into 8 ohms and 400 into 4, with 45 amps of peak current per channel behind it.

Like its smaller sibling it has a load switch. Set to the 2 to 3 ohm position, it holds 400 watts per channel into 2 ohms, which is the point where most amplifiers of this size start protecting themselves instead of playing music.

Bridged to mono it makes 750 watts into 8 ohms. So a pair of these is a genuinely serious monoblock rig, built from parts you can buy one at a time.

Inside the Chassis

It is a Class-AB design. Signal-to-noise is 114dB A-weighted at rated output and 106dB unweighted. Distortion measures 0.20% at full rated output and 0.015% at average listening levels, which is the figure that matters day to day.

Response runs 20Hz to 50kHz at −3dB. Input impedance is 33k ohms, with sensitivity of 1 volt in for 28.28 volts out, the THX standard, so it drops into a processor-based system without gain-matching surprises.

The chassis is 3U: 17-1/4 inches wide, 18-1/2 deep and 6 high, weighing 43 pounds. Parasound covers it with a 2-year parts and labor warranty for the original purchaser from an authorized dealer.

Who Is This Amplifier Best For?

• Your speakers are genuinely hard to drive — 400 watts per channel held into a 2 ohm load is the specification that separates this from amplifiers that merely quote a big 8 ohm number.
• You are running a processor-based system — input sensitivity follows the THX standard at 1 volt in for 28.28 out, so levels match a surround processor without a gain hunt.
• You want monoblocks eventually — bridged to mono it makes 750 watts into 8 ohms, so two of these build a serious rig one purchase at a time.
• You need rack height planned — a 3U chassis at 43 pounds, 18-1/2 inches deep, so the shelf and the depth both need checking before it arrives.
• You want separates — volume and input switching live in the preamp or streamer/DAC ahead of it. Halo P6 is the natural partner

How Does It Connect to Your System?

Feed it from a preamplifier or processor by RCA, and connect speakers to the binding posts. If your speakers dip toward 2 ohms, set the load switch to the 2 to 3 ohm position first.

Use the 12V trigger with its looping output to bring the rack up together, or let audio-signal sensing handle it. Allow for 18-1/2 inches of depth plus cables.

Pairs Well With

Here are some great companions:

• Preamplifier: Required, and the natural next decision — see our Preamplifiers.
• Speaker Cables: Carry the current properly — see our Speaker Cables.
• Interconnects: Balanced XLR is the better run from preamp to amp — see our Interconnect Cables.
• Audio Rack: Give a Class A/AB amplifier air around it — see our Audio Racks.

Frequently Asked Questions

How much power does it make?

275 watts per channel into 8 ohms and 400 into 4 ohms. With the load switch set to 2 to 3 ohms it holds 400 watts per channel into 2 ohms.

Can I bridge it to mono?

Yes. Bridged it makes 750 watts into 8 ohms, or 750 into 4 ohms with the load switch set.

Will it match my surround processor?

Yes. Input sensitivity follows the THX standard, 1 volt in for 28.28 volts out, with 33k ohms input impedance.

What distortion should I expect in normal use?

0.015% at average listening levels. The 0.20% figure applies only at full rated output.

How much rack space does it need?

A 3U chassis, 17-1/4 inches wide, 18-1/2 deep and 6 high, weighing 43 pounds.

What warranty does it carry?

Parasound covers it with a 2-year parts and labor warranty for the original purchaser from an authorized dealer.

See It in Action

AVForums reviews the 2250 v.2:

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