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Definitive Technology W Amp

Amplified wireless music player with DTS Play-Fi®

Item # 735WAMP

There's nothing sadder than a good pair of speakers sitting idle.

There's nothing sadder than a good pair of speakers sitting idle.

1 question - 1 answer

Item # 735WAMP

About the Definitive Technology W Amp

Give new life to your old stereo speakers

There's nothing sadder than a good pair of speakers sitting idle. Give them a purpose by connecting them to the Definitive Technology W Amp. Not only will it reawaken your speakers' spirits with its beefy amplification, it also adds the streaming music capability of Definitive Technology's W wireless music system. Stream tunes from smartphones, tablets, computers, and online music services. Expand your system by adding speakers or components to other rooms. Stream the same song everywhere or a different tune in every room. It all operates on your existing Wi-Fi® network and is easy to control with an app on your phone or tablet. Your speakers will sound very, very happy.
Definitive Technology W Amp

Add wireless music capability to any pair of stereo speakers with the compact W Amp.

Give new life to your old stereo speakers

There's nothing sadder than a good pair of speakers sitting idle. Give them a purpose by connecting them to the Definitive Technology W Amp. Not only will it reawaken your speakers' spirits with its beefy amplification, it also adds the streaming music capability of Definitive Technology's W wireless music system. Stream tunes from smartphones, tablets, computers, and online music services. Expand your system by adding speakers or components to other rooms. Stream the same song everywhere or a different tune in every room. It all operates on your existing Wi-Fi® network and is easy to control with an app on your phone or tablet. Your speakers will sound very, very happy.

Play loads of music wirelessly with your smartphone or tablet

The Definitive Technology W Amp offers lots of ways to listen to music. A free app for Apple® and Android™ is your hub for accessing music stored on your smartphone or tablet. You can also stream music from networked computers and music servers. If you're one of the millions of Spotify® Premium subscribers, Spotify Connect lets you access all your favorite albums and playlists. There's built-in support for Pandora® Internet radio and SiriusXM. Plus, you can choose from over 37,000 free Internet radio streams, for a nearly endless supply of music and other programming.

Play-Fi® turns every smartphone into its own music system

The key to the Definitive Technology W Amp's wireless music capability is Play-Fi. Developed by audio innovator DTS, Play-Fi allows you to send the same song to multiple speakers, play a different song in every room, or let each member of the family control speakers independently with their own device. Play-Fi can transmit lossless audio at CD quality to up to 16 speakers or components on your network. Best of all, the W Amp can work with other Play-Fi speakers and components from other manufacturers. That means you can mix and match different brands of wireless speakers, offering more flexibility than closed systems.

Definitive Technology W Adapt

Analog and digital inputs let you connect other sources for music and audio, like a disc player or even a TV, to the W Amp for playback through your connected speakers.

Connect other sources for more music

The W Amp's rear panel has more than just binding posts to connect your stereo speakers. There are digital and analog inputs, allowing you to connect other components like a CD player, TV, turntable (with a phono stage), or a Blu-ray player. If you want more bass to augment your bookshelf speakers, there's a preamp output for a powered subwoofer. There's also an Ethernet switch, for passing through network connections to other devices like a streaming media player.

Easy wireless setup

The sleek, compact W Amp is simple to set up using your existing Wi-Fi® network. Download the free Definitive Technology app to your Apple or Android device. It will walk you through the quick wireless setup procedure, so you can start enjoying streaming music through your stereo in minutes.

Explore more Definitive Technology W products and build your whole-house music system

Definitive Technology family

W7 - Compact size, great sound, easy wireless music listening with your smartphone or tablet.

W9 - Huge, spacious sound and deep bass make this a formidable wireless speaker.

W Adapt - Add wireless music to your existing stereo.

W Amp - Connect a pair of speakers to this amplified wireless player.

W Studio - This sound bar and subwoofer bring wireless music to your home theater.


Product highlights:

  • built-in stereo amplifier: 150 watts x 2 into 4 ohms
  • DTS Play-Fi software allows amp to communicate with other Definitive Technology W devices, as well as other Play-Fi components and speakers
  • built-in dual-band Wi-Fi allows connection to your wireless home network and wireless communication with other Play-Fi devices (recommended maximum of 16 devices on a network)
  • free Definitive Technology/Play-Fi app for Apple and Android devices offers easy music selection and playback
  • plays music stored on Apple and Android smartphones and tablets
  • supports Spotify® Connect, Pandora®, Rhapsody, Amazon Prime, TIDAL, SiriusXM, and thousands of free Internet radio stations (subscription required for some services)
  • DLNA support for streaming music from compatible networked computers and NAS drives
  • multi-zone synchronous playback (same music plays in multiple zones simultaneously) or multi-stream playback (music individually selected for each player)
  • easy wireless setup using your smartphone or tablet
  • plays MP3, M4A, FLAC, and WAV files; sampling rates up to 24-bit/192kHz
    • not compatible with protected files with digital rights management (DRM)
  • Dolby® Digital decoding
  • source select, play/pause, and volume buttons
  • rack-mountable with included brackets
  • AC adapter included
  • warranty: 1 year
  • Our 60-day money-back guarantee
Connections and Dimensions:
  • binding post speaker terminals
  • LFE preamp output for connecting a powered subwoofer
  • optical digital audio input
  • stereo RCA inputs
  • line-level stereo RCA outputs
  • 3.5mm AUX input for connecting an iPod or other portable music player
  • Ethernet input/output switch for connecting other network-capable components
  • USB port for firmware updates and phone charging
  • 8-1/2"W x 1-3/4"H x 9"D
  • requires high-speed Internet, Wi-Fi router and an Apple or Android smartphone or tablet
  • MFR # TNAA-A

What's in the box:

  • Wireless amplifier
  • 6' AC power cord
  • 2 Small brackets
  • Large bracket
  • Bracket plate
  • 4 Screws
  • Self-adhesive rubber pad
  • Setup Guide
  • Important Product Information
  • Rubber Pad instructions

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Definitive Technology W Amp

Crutchfield customer from Malvern, PA on 6/12/2017

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Great product-- simple and easy to use. I have this setup in my garage to power (3) sets of speakers (using a switch box): rock speakers at my pool, Klipsh AW400 patio speakers and a set inside the garage. Easy to control from my smartphone and tablet! I typically use Pandora and Amazon Music so far beacuse I don't generally keep muisc on my devices, but it looks like it would be easy to play them, too. Make sure you have strong internet where you control the device. If I take my cell phone too far from my garage, the signal gets lost and the music stops. So, I tend to use a different device (my tablet) and make sure it stays in range of my wifi. Within range, there are no issues.



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0 of 0 found this helpful

Great Product

Jared from Holliston, MA on 5/25/2016

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Verified employee purchase (What's this?)

Awesome product. Super easy to install and connect to the iPhone. Streamed Pandora and played the songs on my phone perfectly. It's powering two AW5500 Def Tech speakers. PLus with the $250 off with the purchase, you can't go wrong. Highly recommend

Pros: Easy to set up Good power

Cons: Does run a little hot so keep well ventilated

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2 of 2 found this helpful

quality wireless sound

steve from Florida on 12/7/2015

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Verified employee purchase (What's this?)

I was thinking about a sonos-type system but the Crutchfield rep told me about the W amp. After some research I made the plunge. Thanks guys! The amp is easy to set up, and the Play-Fi app was simple enough for a luddite to download and use. I was worried that it might not be powerful enough, but it has more than enough juice to drive the Martin Logan LX16's connected to it. These are reasonably efficient speakers; your results may vary. But let's get to the point - the whole system weighs about 25 pounds, fits in a plastic bin when not in use, and sets up in the back yard in about a minute. In other words, the system is only marginally less portable than a wireless powered speaker but with the kind of performance that approaches audiophile quality. Plus, you can add a subwoofer if you need more bass. In short, if you want portable wireless but aren't willing to sacrifice sound quality the W amp is a great choice.

Pros: easy to set-up and use fantastic wireless sound quality extremely portable


Crutchfield response on

4 of 4 found this helpful

Out Door Music System

JWIII from California on 7/8/2015

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Verified employee purchase (What's this?)

After 8 years I was looking to update my outdoor music system. Not being all that tech/product savvy I was confident that the customer service people at Crutchfield's would be able to help me find what I needed. They recommended the Definitive Technology Wireless Amp. The fact that the amp matched the Definitive Technology outdoor speakers I was purchasing made this an appealing choice. I voiced my concerns regarding the "programing" of the amp, requiring utilization of a download to my smart phone. The customer service rep assured me that it was a relatively simple procedure(we've all heard that one before), but, if I had any problems I could contact Crutchfield's via phone and they would walk me through it. I must say that I was surprised how smoothly the programming went, from the app download to the linking of the amp to my wi-fi system. It took more time taking down my old Klipsch speakers then getting the amp up and running. My other concern was the placement of the amp. As stated it is part of my outdoor music system and as such is placed in a large granite covered island some distance from my indoor wireless system. I needn't have worried, it works beautifully. FYI; This amp runs a little hot. I was able to address this issue by placing the amp on a small cooling rack(the kind you use to cool baked cookies), problem solved. I'm able to access and operate my system with my iPhone. I love my new music system.

Pros: Easy Programming, Compact, Smart phone controlled

Cons: Runs a little hot(see comments)

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4 of 4 found this helpful

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More details on the Definitive Technology W Amp

Stacey B.

Product Research


W Amp Wireless Amplifier: Definitive Technology's W Amp allows you to add wireless music streaming to your favorite pair of bookshelf speakers. The W Amp features a built-in stereo amplifier with digital signal processing for great sound at any volume level.

Definitive Technology Wireless Collection: The W Amp is part of Definitive Technology's Wireless Collection which is wireless solution for distributing music anywhere in your home or office. Stream select online music services, Internet radio, and your personal digital music library all from your smartphone, tablet, or computer.

Note: Due to bandwidth limitations of most wireless networks, Definitive Technology does not recommend more than 16 wireless Play-Fi devices on the same WiFi network at a given time.

Wired or Wireless Network Connectivity: The Definitive Technology W Amp is fitted with a RJ-45 Ethernet (LAN) port to hardwire the amplifier to your home's network router. The W Amp also features built-in WiFi (802.11 g/n; 2.4/5.0GHz) for a wireless connection to your home network.

DTS Play-Fi Wireless Technology: Definitive Technology's Wireless Collection employ DTS Play-Fi wireless technology for wireless sound that is reliable and high-quality. DTS Play-Fi combines DTS audio and WiFi wireless technology to wirelessly stream high-definition "lossless" audio with no impact on sound quality. DTS Play-Fi will stream pure, bit-for-bit, lossless audio, for uncompromised quality sound; up to 16-bit/48kHz. DTS Play-Fi has a range of up to 100' from your wireless router.

Note: All DTS Play-Fi enabled products work seamlessly together, so there's no hassle adding more speakers and devices, or choosing more than one audio brand (like Polk, Phorus, Wren, etc..) in your home.

Simple Setup: There are two methods for connecting the DTS Play-Fi W Amp to your home network. You can perform WiFi setup via the free Definitive Technology App on your Apple iOS/Android mobile device or Windows PC (this setup allows you to connect multiple Play-Fi devices at once to your network). You can also use the WPS button on the W Amp t if your wireless router supports WPS (this setup only allows you to connect one Play-Fi device at a time to your network).

Definitive Technology App: Download the free Definitive Technology App onto your Apple iOS (8.0+) device, Android (4.0+) smartphone/tablet, or Windows (7/8) PC for easy and convenient management of your music from your mobile device or computer. From the app you can initially set up the Definitive Technology wireless system, as well as add, link, and control all your Definitive Technology Wireless Collection and DTS Play-Fi speakers. You'll be able stream music directly from the system's built-in music online services, or music on your mobile device or PC to multiple Wireless Collection series and DTS Play-Fi enabled speakers through out your home. The app lets you browse your music by artist, album, genre, or title; and provides album art. You can choose to play the same music in each zone or a different song in each room.

Variety Of Sources: The Definitive Technology Wireless Collection supports a variety of music sources.

  • Mobile Device (Apple iOS + Android): You are able to wirelessly stream your music files from your music library on your Apple iOS (6.0+) or Android (2.2+) device to the Definitive Technology Wireless collection system through the free Definitive Technology app.
  • Online Music Services: From the free Definitive Technology app on your mobile device or computer, you can share and listen to Pandora, Spotify Connect, SiriusXM, TIDAL, Amazon Music, Songza, Rhapsody, and Internet Radio.
  • Computer Music Library: The Definitive Technology wireless system is DLNA compliant for playback of various music files stored on your Windows PC (7/8) or DLNA-certified NAS drives connected to your home network. Use the free Definitive Technology app on your mobile device or computer to access these music files. MAC OSX computers and laptops require third party software to be visible on the network (Twonky, Plex, Servio etc.) as they do not support DLNA.
Supported Music Files: Definitive Technology's Wireless Collection and DTS Play-Fi support music formats such as MP3, AAC, FLAC, and WAV. The system will recognize music files up to 24-bit/192kHz and wirelessly stream these files at up to 16-bit/48kHz (CD quality sound). Some down-sampling may occur to ensure virtually lossless distribution throughout a home network.

Critical Listening Mode: For those who wish to hear high resolution audio as originally intended, Critical Listening mode will enable native rendering of high resolution files up to 24-bit/96kHz, with no down-sampling or network synchronization adjustment. In this way, audio files retain their original audio integrity. Critical Listening Mode is only available on one DTS Play-Fi device and not supported for multiroom audio distribution.

Maximum Number of Rooms/Zones Supported: You can play the same source in each zone or a different song in each room. Eight separate wireless source devices (smartphones, tablets, etc.), each with its own source, are supported simultaneously and any wireless source device can stream to eight DTS Play-Fi playback devices. Due to the bandwidth limitations of most wireless networks, no more than 16 wireless DTS Play-Fi products on a single WiFi network at one given time is recommended.

Stereo Amplifier: The W Amp wireless amplifier has a peak power rating of 75 watts x 2 channels in 8 (150 watts x 2 channel in 4). It also includes customized EQ settings (via the Definitive Technology App) for optimizing the performance when used with Definitive Technology loudspeakers.

Analog & Digital Connectivity: The Wireless Collection series W Amp is fitted both both analog and digital inputs for flexible connectivity.

  • Dual Analog Inputs: The wireless amplifier features two rear-panel analog audio inputs. There is a stereo minijack (3.5mm) input for connection of almost any external portable audio device with a analog audio output or headphone jack. There is also a stereo RCA input for connection of a CD player or Phono preamp.
  • Digital Input: The W Amp also offers a optical (toslink) digital input for connection of your Blu-ray player, Satellite receiver, or Game system. The digital input supports 2ch PCM and Dolby Digital (up to 5.1ch) audio.

Binding-Post Speaker Terminals: The Definitive Technology W Amp is fitted with four binding-post speaker terminals to connect a single pair of speakers. The binding-post terminals will accept bare-wire (up to 10AWG), pin-connectors, spade-connectors, and banana plugs (single or dual).

Sub Output: The W Amp wireless amplifier also features a mono-RCA subwoofer output for connection of a powered sub (sold separately). The amp's sub out is full-range, so you will need a powered subwoofer with a built-in crossover.

AC Power: The Definitive Technology W Amp wireless amplifier operates off of standard household current using the integrated AC power supply and included 6' detachable AC power cord.

Mounting Options: The W Amp wireless amplifier can be table-top mounted using its integrated rubber feet, or rack-mounted via the included brackets.

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Customer Q&A

Crutchfield asked: Why did you buy this?
I love the Definity speakers and I want to bring the music to 2 different zones in my house, so i want to give a try with Definity amp. [ Carlos  Aug 21, 2016 ]
with the help of Adam at Crutchfield, I decided that this would be the best amp for my situation. I needed a wireless situation where I could walk through my home and connect anywhere with in it. [ COLIN  Aug 02, 2016 ]
Already have one and it works great. Now I'll have music on the back porch and in the garage. [ Bernard  Jul 01, 2016 ]

1 question already asked

Can you use the optical input on the amp to stream Airplay from an apple TV to another Playfi device, say a W7 speaker?
[ Andrew  Mar 28, 2015 ]
1 answer
I forwarded your question to an Advisor and they responded with the following: I suppose you could do it this way, but wouldn't need the Apple TV. You could stream directly from your Apple device to a W7. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat.
[ Krissy  Apr 01, 2015 ]  Staff

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