free shipping at parts express

Manuals & Resources

Dayton Audio DTA-120 Class T Mini Amplifier 60 WPC

Brand:|Model: DTA-120|Part # 300-3800
The small and powerful Dayton Audio DTA-120 Class T amplifier installs virtually anywhere. It produces big-amp sound while occupying minimal space on your desk or A/V cabinet.
In Stock
List Price$139.99
You Save29%
Your Price
Part # 300-3800
  • Audiophile-quality sound reproduction, extremely low distortion, fits almost anywhere
  • Ultra-quiet 103 dB signal to noise ratio (A-weighted)
  • 40 WPC continuous into an 8 ohm load, 60 WPC continuous into a 4 ohm load
  • Front-mounted 3.5 mm input and rear RCA inputs
  • Quad mini binding posts accept bare wire or banana plugs
  • Compact extruded aluminum heat sink enclosure
  • Thick, stylish black-anodized aluminum face plate

Product Details

Dayton Audio DTA-120 Class T Mini Amplifier 60 WPC

Everything You Need in a Mini Amp

Dayton Audio has revamped the popular DTA-100 mini amplifier with an all-new design that improves on every part of the DTA-100's performance. The result is the Dayton Audio DTA-120 Class T digital amplifier. It's everything you need in a mini amp, delivering the performance of enormous hi-fi gear, and smart features you'll wonder how you lived without... and thanks to the space-saving design, it fits and installs practically anywhere!

Big-Amplifier Power

The DTA-120 amplifier delivers the power of a monster amplifier, but in a tiny package. Thanks to Tripath's proprietary Class T technology, plus a robust Dual Parallel BTL configuration, the DTA-120 tackles the toughest speaker loads with ease -- while delivering the sound quality and low distortion of a conventional Class AB amplifier. The dual-power-chip design delivers 60 watts (RMS) per channel of efficient power into an 4 ohm load (up to 120 watts total), and 40 watts (RMS) into 8 ohms - continuously, with no reduction in output. That means powerful bass and clear output that keeps on going, even with the most demanding speakers.

Convenient, Small Size

With the DTA-120 amplifier, you get the most power possible from the smallest footprint imaginable. At under 3-1/2" wide, 2-1/4" tall, and 6" deep, the DTA-120 delivers more power per cubic inch than any other mini amplifier. All this is thanks to the revolutionary, cool-running Class T digital PWM amplifier technology and the extruded aluminum heatsink case. The robust external switching power supply hides out of sight. But since it can supply high current with even higher peaks, the DTA-120 can easily drive HUGE speakers.

High-End Features and Quality

The DTA-120 amplifier delivers the features you expect in a much more expensive amplifier, at a fraction of the size and price. The housing is black-anodized aluminum, with a thick machined faceplate and a silky-smooth volume control. The rear panel features high-quality, gold-plated RCA inputs and shielded, gold-plated 5-way binding posts that accept any type of speaker cable. A high-current DC power jack is also used to ensure maximum power transfer to the amp. On the front panel, there's a second 3.5 mm audio input jack, as well as a 1/4" headphone jack that receives its signal from a separate, high-quality headphone amplifier stage controlled by the main volume knob. (3.5 mm to 1/4" adapter included.)

Works With ALL Your Sources

In a world of changing digital and wireless specifications, the high-quality analog design of the DTA-120 remains virtually future-proof. Just connect it to any device with a headphone output jack and begin enjoying powerful, high-quality audio through your own speakers. Short signal paths inside the amplifier preserve all the quality of the input signal, and the DTA-120 automatically switches from the rear inputs to the front input when connected. No switches to flip, and just one knob. The DTA-120 is the perfect complement to your smartphone, tablet, laptop, PC, television, or any other audio source.

Head-Fi Friendly Design

The DTA-120 is the ultimate desktop amplifier. Not only can it drive even the smallest and least-efficient speakers to almost painful levels without strain, making it perfect for powering desktop mini-monitor speakers, but it also offers a separate solid-state headphone amplifier stage capable of powering even the most demanding headphones to high listening levels while preserving clarity, detail, and a refined sonic character. However you like to listen at your desk, the DTA-120 is the perfect partner.

Specifications: • Output power: 40W RMS x 2 @ 8 ohms, 60W RMS x 2 @ 4 ohms • Total harmonic distortion (THD): <0.1% @ 1W, <10% @ 60W • Frequency response: 20 - 20,000 Hz (+0/-1 dB at 8 ohms, +0/-3 dB at 4 ohms) • Signal-to-noise ratio: 103 dB, A weighted • Input sensitivity: 750 mV (full volume) via rear input • Inputs: Rear stereo RCA, front 3.5 mm stereo mini-jack • Outputs: dual shielded, gold-plated mini binding posts (banana plugs accepted) • Power supply: Input: 100~240 VAC, 50/60 Hz, 1.6A; Output: 24 VDC, 5A continuous, with 2.5 mm DC plug • Power efficiency: >85% • Dimensions: Faceplate dimensions: 1-29/32" H x 3-3/8" W x 5/16" D • Body dimensions: 1-3/4" H x 3-1/8" W x 4-5/8" D • Overall dimensions: 2" H x 3.375" W x 6.25" D (including feet, faceplate, and volume knob).

c|net Review - March 15, 2014

Front Panel:

1. Power LED
Blue power LED indicates the unit is receiving power and is fully operational.

2. Power/Volume Control
This control turns on the unit and adjusts the volume level of the amplifier. When the unit is turned on the power LED will become fully illuminated. To turn the unit off, turn the control fully counter clockwise until it "clicks" to the off position. It is normal for the power LED to slowly dim and then go completely out when the unit is first turned off.

3. Headphone Jack
The DTA-120 also doubles as a headphone amplifier that will drive any headphone easily and delivers colossal sound stage and effortless dynamic range. The 1/4" stereo jack allows connection of larger home and studio-style headphones. An adapter is also provided so that smaller 3.5 mm personnel style headphones can be used.

Note:When headphones are plugged into the headphone jack the speaker output connections are disconnected.

4. 3.5 mm Audio Input
The unit features a convenient front mounted 3.5 mm stereo input for quick connection of iPods, MP3 players, and other portable audio devices. A 6" 3.5 mm coiled cable that stretches to 12" is included.

Note: When a device is plugged into the 3.5 mm audio input the rear mounted RCA input jacks are disconnected. This allows the user to permanently connect a device to the rear RCA audio inputs and switch to a portable device by simply plugging into the front mounted input.

Rear Panel:

5. Power Connection
The DTA-120 operates on 24DVC and MUST be used with a power supply that can provide at least 5A. A world compatible (100V-240V) switch mode power supply is included with the unit and is supplied with a U.S.A. style cord. To operate in other countries an appropriate power cord will need to be purchased. The power connection on the unit is a 2.5 mm x 5.5 mm jack with center pin being positive.

Note: If an inappropriate power supply is used and the unit is damaged, the warranty will be voided.

6. Speaker Outputs
The speaker output connections utilize high current binding posts that are spaced on 3/4" centers and are compatible with standard double banana plug connectors (sold separately). The connections are color coded for easy polarity identification. High quality screw-on banana plugs that will accept 10AWG-18AWG wire are included.

7. RCA-Type Audio Input
RCA-type line level input for permanent connection of larger devices such as CD players, PCs, and DVD players. An RCA to 3.5 mm adapter is also provided for added connection flexibility.

Note: When a device is plugged into the front mounted 3.5 mm input, the RCA input jacks are disconnected.

Product Specifications
  • Special FeaturesClass T
Dayton Audio DTA-120 Class T Mini Amplifier 60 WPC
  • BrandDayton Audio
  • ModelDTA-120
  • Part Number300-3800
  • UPC848791001086
  • Product CategoryHome Audio Amplifiers
  • Unit of MeasureEA
  • Product Rating
    (64 Reviews)
  • Weight3 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.


Dayton Audio DTA-120 Class T Mini Amplifier 60 WPC
Dayton Audio DTA-120 Class T Mini Amplifier 60 WPC is rated 4.4769 out of 5 by 65.
Rated 2 out of 5 by from Sounds good when it worksI have had this product for about 3 years.When I bought it, it sounded perfect but about one year into it the problems started. Basically the right speaker goes out. It stops working. Sometimes coming in and out of service. I noticed that when I applied pressure to the knob it temporarily fixed the problem. I removed the knob and tightened the screw and nut that the knob goes on but that only worked for a little while. Is there a way to get this fixed?Do I need to solder some circuits/connections?Bottom line, I would not recommend this.It really has a mind of its own now.Dayton please contact me if you can help.
Date published: 2016-02-03
Rated 4 out of 5 by from Looks and sounds beautiful!I purchased the DTA-120 to power a pair of B652-AIR's, and it does indeed sound beautiful, especially with Retro music by the likes of Le Cassette. 'Digital Power', the first track on their 'Left To Our Own Devices' album is enough to both send you somewhere else entirely and bring a tear to your eye. This system is so good, I broke out my cheap cell phone and did a video review. That's saying something, seeing that I've never bothered making a video on it until now. All I gotta say is, if you're on a budget and/or you need excellent sound in a tight space, look no further.
Date published: 2016-01-21
Rated 4 out of 5 by from Used as STAX headphone amplifierI have an old pair of STAX SR3 earspeakers from the 70's that I wanted to hear again. they require a speaker level of about 15w to drive them. This amp made them sound great very clean and clear and open sounding good detailed base looking forward to many more hours of good sound. I plugged in my GRADO SR325 into headphone jack and that did not sound good at all I don't know how the headphone jack is wired could be just a poor headphone output design. have not tried the GRADO on the speaker outputs or even connected speakers but this amp really was a treat for me to get to hear my STAX again after so many years. Sounded better than expected. I used an ODAT from JDS labs to drive the DTA-120
Date published: 2015-11-06
Rated 4 out of 5 by from Impressive for the price and sizeI'm a communications pro who I bought this amp more than a year to power some bookshelf speakers to drive bookshelf speaker to complement a Mac Pro used for video editing. It's no surprise that this little powerhouse was up to that task, but I was stunted when I recently used it test some large classic rock speaker that I built (2-way cross-overs with 12" woofers and phenolic ring tweeters in sealed cabinets with 2.4 cubic ft. of volume). My expectations were low, but this little amp produced a huge, clean sound at up to 70 percent with no perceivable distortion. Based on it's specs, I don't doubt there would be noticeable distortion when cranked wide open, but it was too loud to go much higher. For moderate sized spaces of 200-400 sq ft this little guy will not disappoint. If you want a power amp to drive inefficient speakers or in a large space, you will need to spend more to get more power without harmonic distortion. Yet, make no mistake, this is an impressive little package for its price and size.I would recommend and play to buy one for the man cave.
Date published: 2015-11-04
Rated 4 out of 5 by from The Little Amp that CouldColor me impressed. This little amp surprises me every time I hear the music it's making then open my eyes to this little pint sized acoustic performer. Detail without being harsh, bass is tight, clean and deep, lot of treble detail being conveyed without being harsh.The bass ... no mid/upper bloat, not boomy or lose just clean, tight, deep bass. This seems to be the forte of this little amp when used in the constraints of it's, most likely overrated power rating, the bass is superb.The midrange seems just a bit lightweight, not that it's bad, far from it, it's really good, clean, and full of detail without being harsh. For an example of what seems to be ever so slightly missing; Male vocals that should have some 'chestiness' to them are a bit less ... hairy.Treble seems to be just a bit rolled off on the very top but otherwise very good, detailed, clean, and not harsh.PROS: Detail without being harsh.The sound is coherent from top to bottom.Is that great bass coming from that tiny box?The background the music is painted on is dead quiet.Easily places performers in their respective places in the soundstage, a feat most cheap amp/speakers just can't accomplish.Good dynamics, both macro and micro, within its power rating.CONS: Volume knob 'jumpy' at about 9 a.m. and anything after 2p.m. startssignaling the amp is nearing its limits.Midrange is a bit less 'filled out' than I'd like.There's something about how the notes die that seems odd. The initial onset of the note, the carrying of the note, the decay, detail, control, it's all there. It's just the very last tiny ending of the note that seems to end ever too quickly.The power rating; What is the real power rating? The 50 watt NAD2100 sitting beside the little 60 watt Dayton drives my NHT 2.5i's much easier.Listening at the 12 position for an hour the amp is rather warm, not hot to the touch but you know it's trying..I listened to this amp on a pair of NHT 2.5i's, AudioQuest cables, fed the amp with an Aune preamp, Aune DAC and Foobar playing FLAC files.Have on hand a NAD2100, Acurus A200, and Marantz sr8400HO pre/pro amps for comparison.This amp is intended for my son's college dorm and will be mated with a pair of Wharfdale Opal 30's, Tara Labs Clara cable, Schiit DAC, FLAC files on foobar. This should make a very fine dorm sound system.Parts Express, if you guys could come up with one of these gems able to push an honest 300+ watts at 8 ohms, stable into low ohm loads, not much up the sound and keep the price low ... I'd have an amp to drive my Carver Amazing Loudspeakers.
Date published: 2015-10-24
Rated 5 out of 5 by from Great soundGreat amp , good sound. Easy to set up. Does not take up a lot of space.
Date published: 2015-10-15
  • 2016-02-05T06:16CST
  • bvseo_cps, prod_bvrr, vn_cps_3.1.6
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_65
  • loc_en_US, sid_300-3800, PRD, sort_mostRecent
  • clientName_PartsExpressInternational

Product Q&A

Get your questions answered from other customers
who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email  for a prompt reply.
Dayton Audio DTA-120 Class T Mini Amplifier 60 WPC

Can this device be powered with batteries for a potable application? 

Asked by: speakerartista
We do not recommend powering this by battery, since using anything other than the included power supply would void the warranty.
Answered by: Chrisf
Date published: 2016-02-04

can i use this amp to power 2 3ohm sony surround rear speakers?

Asked by: rac0000
This amplifier is only stable down to 4 ohms so we would not recommend a 3 ohm load for it.
Answered by: Chrisf
Date published: 2016-02-01

i'v bought one ov these in 2008 and I'm wondering if I can use it in mono for my center chanle speaker. thanks

Asked by: matt morrow
This is not a bridgeable amplifier so only one channel can be used, but since it is a solid state amp it will not damage it to just just one side.
Answered by: Chrisf
Date published: 2016-02-01

Does this amp cause wifi and/or fm interference? If so, can you give me a back-of-the-cocktail-napkin guess as to how far away it might have to be located? (Don't worry, I'll not hold you to it ;^)

Asked by: garyjp

What is the headphone output voltage?  Sorry if the ques.was already answered.  thx PB

Asked by: Radi0active

This amp produces 60 WPC into a 4 ohm load and 40 WPC into an 8 ohm load. I plan to use it with Dayton B652's which are 6 ohm speakers. Will this watt deliver 50 WPC to the B652's?

Asked by: billbill
Yes the output power into 6 ohms will be around 50 watts RMS.
Answered by: MattP
Date published: 2015-12-30
  • 2016-02-05T07:03CST
  • bvseo_cps, prod_bvqa, vn_cps_3.1.6
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_111
  • loc_en_US, sid_300-3800, PRD, sort_recentQuestionsFirst
  • clientName_PartsExpressInternational


Parts Express FacebookParts Express TwitterParts Express YouTubeParts Express PinterestParts Express SpotifyParts Express Instagram
Live Chat Software