Why Choose Crutchfield?
Great gear and expert advice
Our experts help you pick the ideal gear for your needs.Meet our advisors
Free tech support for the life of your gear.Read about our one-on-one expert help
You may return items that are complete and like new for any reason within 60 days.See the details of our return policy
Earn one point for every dollar you spend and use those points to save on future purchases.Get full details on Crutchfield Rewards
Deep discounts on car installation gear
We offer vehicle-specific installation instructions, dash kits, wiring harnesses, and speaker accessories at deeply discounted prices with car stereo and speaker purchases. Available for most vehicles.Learn more
Trusted since 1974
Our customers have trusted us with their business, and they’ve helped us win awards for our service.Check out our most recent awards
The manufacturer’s warranty always applies.See more details
Single powered desktop speaker
Item # 228SPRPWR | MFR # SuperPower
This item is no longer available.
Our take on the NHT SuperPower by Crutchfield's Ralph Graves
Build a sweet-sounding desktop audio system
Want to make your smartphone, tablet, or laptop the center of a great stereo system? You don't need super powers to do it. Just start with two NHT SuperPower speakers. Each high-performance speaker has its own amplifier built in, so there's no need for a receiver. Add an NHT PVC PC passive volume control (sold separately), and you have a compact desktop audio system that delivers rich, accurate NHT sound.
Combine two SuperPower speakers with a NHT PVC PC volume control for a simple, great-sounding system
Plenty of audio "muscle" underneath that handsome exterior
The SuperPower houses a 1" silk dome tweeter and 4-1/2" woofer inside its strong, well-braced cabinet. Like all of our favorite NHT speakers over the years, this one uses a sealed, "acoustic suspension" enclosure for tight, musical bass and articulate midrange. And with 90 watts of clean, cool-running amplification, the SuperPower has no problem delivering accurate sound you'll enjoy even when you're across the room.
You can use the provided rubber pads to reduce vibrations on your desktop. Or pick up a pair of optional NHT DeskStands to raise your speakers and position them at the optimal listening angle. Looking for serious low end? Add NHT's perfectly matched Super 8 powered subwoofer for deep, hard-hitting bass that will make your music sound bigger and fuller.
- frequency response: 72-20,000 Hz (-3 dB)
- sensitivity: 111 dB
- built-in 90-watt Class D amplifier
- 1" silk dome tweeter
- 4-1/2" mid/woofer
- RCA line-level input (single channel)
- acoustic suspension (sealed) enclosure
- 4 rubber pads to minimize vibration
- magnetically shielded for safe placement next to tube TVs
- high-gloss black finish
- stereo RCA-to-stereo minijack cable
- AC power adapter
- 9"W x 5-1/2"H x 6-3/4"D
- weight: 7.2 lbs.
- warranty: 3 years
- Our 60-day money-back guarantee
What's in the Box:
- Powered speaker
- Detachable cloth grille (installed)
- 6' AC power cord
- 39" Stereo minijack-to-stereo RCA cable
- 4 Self-adhesive rubber pads
- Setup Guide
Features and Specs
|Pieces in System||3 Y|
|Tweeter Size (inches)||---|
|Midrange size (inches)||4-1/2|
|Woofer size (inches)||---|
|Power Output (Watts)||90|
|Frequency Response||72-20k Hz|
|Parts Warranty||3 Years|
|Labor Warranty||3 Years|
Overview: The NHT SuperPower is a powerful self-amplified, mini-speaker. The compact powered speaker features a 2-way speaker design and has it's own internal, 90-watt amplifier. The NHT SuperPower can be connected directly to computers, smartphones, tablets, Apple devices (iPod/iPhone/iPad), video game consoles, and TV's; or practically any audio source which features an headphone or audio output.
90-Watt Class D Amplifier: The NHT SuperPower employs a built-in 90-watt Class D amplifier. This 90-watt digital amplifier is extremely energy efficient, converting over 90% of the incoming electricity to pure, low-distortion output power.
Two-Way Speaker Design: The SuperPower uses a two-way speaker design with a 4.5" treated-paper cone woofer and 1" silk dome, ferro-fluid cooled tweeter mounted in a compact sealed enclosure for lifelike vocals and excellent imaging.
Acoustic Suspension Enclosure: The sealed, or "acoustic suspension" designed enclosure is very important to the SuperPower's performance. In an acoustic suspension design, the air trapped inside the enclosure acts as a spring to control the woofer cone's motion which helps keep distortion low and allows the small SuperPower to produce the sort of deep bass and dynamics usually associated with much larger speakers. The speaker enclosure is internally braced for added rigidity.
Optional Desktop Stand: NHT's optional Desktop Stand (228DSKSTND, sold separately) will open up the midrange vocals and make the soundfield larger and more realistic.
Power Switch: The NHT SuperPower features only one control. There is a power switch located on the back of the speaker which turns the powered speaker On/Off.
Add-On Passive Volume Control: The NHT passive volume control (228PVCPC, sold separately) will make things sound better and puts a knob handy for volume control.
Analog RCA Output: The NHT SuperPower speaker is fitted with a single RCA line-level input to connect your external audio source that features a headphone or audio output. A 39" stereo minijack to stereo RCA cable is provided.
Detachable AC Power Cord: The NHT SuperPower operates off of standard household AC current (100-120V; 60Hz/1.2A) using the supplied 6' detachable AC power cord.
Super 8 Subwoofer (sold separately): The NHT Super 8 subwoofer (228SUPER8, sold separately) can be added to the SuperPower speaker system to fill a bigger space or to add bigger bass and dynamics. The SuperPower does not feature a subwoofer output; your add-on subwoofer will need to connect to either the NHT passive volume control (sold separately) or your audio source.
Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.