audioengine n22

A sweet-sounding USB digital amplifier for headphones and speakers

The nice folks at Parts Express sent over an amazing-sounding little amplifier, the $129 Topping TP30. It's a tiny desktop Class T amp design, with one analog RCA stereo input and one USB connection (the TP30 has a built-in digital-to-analog converter). The amp delivers 15 watts per channel to 4 ohm-rated speakers (10 watts into 8 ohms), and has a 3.5 mm headphone jack on the front panel.

With its extruded aluminum chassis, 8mm thick, CNC-machined front panel, and solid-metal volume control knob the TP30 wouldn't look out of place in a high-end system. It even feels expensive, but I have just one nitpick: the illuminated blue LED ring surrounding the volume control knob is too bright. I wish there was a way to dim it or turn it off. The amp measures a tidy 4.13 inches by 1.77 inches by 8.07 inches.

The USB interface utilizes standard Windows audio class 1 drivers (it worked fine with my Mac mini). Internal parts quality is superb; the TP30 boasts Elna capacitors, Dale resistors, and an ALPS volume control. The Burr-Brown USB digital-to analog converter chip accepts up to 48 kHz sampling rates with 16-bit resolution.

I compared the sound of the TP30 with my Audioengine N22 amp ($199), and they're both pretty good. The N22 has a fuller, warmer tonal balance, but the TP30 has a more immediate, detailed sound with more tightly controlled bass. I used my Audioengine P4 speakers for all of my speaker-based listening tests. It's interesting, the TP30 is a digital amp and takes digital signals "straight-in" via its USB port; the N22 is analog-only and is a more traditional Class A/B amplifier design. It sounded softer, and a wee bit less defined than the TP30.… Read more

Sweet-sounding music and audio gifts under $300

You don't have to be an audiophile to appreciate good sound and music, so I've put together a healthy selection of great gift ideas, all priced under $300. Tuesday's blog has nine more, and they're all less than $100 each!

The Sherwood RX-4503 stereo receiver ($130) would be a great way to start building an awesome-sounding budget hi-fi. I briefly auditioned the Sherwood and came away really impressed with its sound quality. The stereo receiver serves up 100 watts into each of its two channels, and includes a mono preamp output if you decide to add a powered subwoofer. It has Dolby Virtual Surround and Dolby Headphone faux surround processors. A front-panel connection is also included for the Sherwood BT-R7 Bluetooth Audio adapter, allowing wireless streaming from your mobile phone or other devices. The Sherwood could also work wonders in a stereo home theater system.

B & W is one of the more legendary names in British hi-fi, and its speakers are used in many of the world's top studios, including the Beatles' favorite, Abbey Road. B & W is also known for its sleek styling, and its P5 on-ear headphone ($300) is definitely a looker. Its real leather earpads and chunky tubular metal construction put all of the other similarly priced headphones on the market to shame. The P5 sounds best plugged into an iPod or other portable music players.

The Audioengine P4 is a bona fide audiophile mini speaker that sells for $249 per pair. I gave it a very positive review last year, and now I love it so much I retired my self-powered Audioengine A2 ($199 a pair) speakers. While the A2 is still amazing in its own right, the P4 is better in every way, but it has to be used with a receiver, like the Sherwood on this list, so the P4 winds up costing a lot more than an A2. If you have the dough, or a spare amp, the P4 is the way to go. … Read more

Audioengine's nifty $199 desktop amplifier

Audioengine's spectacularly good A2 has been my powered speaker reference for years. I recently enthused about Audioengine's slightly larger passive P4 speaker ($249/pair) that need to be powered by a separate amp. I was surprised that Audioengine didn't introduce an amp when they brought out the P4, but now with the N22 ($199), the time has come.

It's an unobtrusive, vertically oriented design--7 inches high, 2.75 inches wide, and 5.5 inches deep--and it weighs 3.5 pounds. The clean front panel has just a volume control and a 3.5mm headphone jack; the … Read more