Dayton DTA-120 User Manual

Specifi cations:

Power Output: 60 watts RMS x 2 into 4 ohm
Total Harmonic Distortion: <0.1% @ 1W per channel

<10% @ 60W per channel

Minimum Speaker Impedance: 4 ohm
Signal-to-Noise Ratio: 103 dB, A weighted
Input Impedance: 10k ohms (minimum)
Input Sensitivity: 680 mV
Frequency Response: 20-20,000 Hz
Channel Separation: 95 dB
Effi ciency: >85%
Dynamic Range: >100 dB
Electrical Requirement: 24VDC @ 5A center pin positive
Dimensions: 2" H x 3.375" W x 6.250" D
Weight: 1.0 lbs

120 WATT

Package Contents:

• DTA-120 120W Digital Class T Amplifi er

• World compatible 24V@5A switch mode power supply

• 2 sets of screw-type banana plugs for speaker connection

• 3.5 mm to 1/4" headphone adapter

• 3.5 mm to 2 RCA “Y” cable

• 6" coiled 3.5 mm audio input cable

Important Safety Instructions

To reduce the risk of electric shock, do not remove cover. No user

serviceable parts inside. Refer servicing to qualifi ed personnel.

To reduce the risk of fi re and shock do not expose unit to rain or

moisture. The unit should be connected to an earth grounded AC

electrical socket. The unit should be operated in a well ventilated

area. Minimum clearance is 2 inches from the ventilation openings.

Warranty Information

Dayton Audio products are warranted free from defects in material and workmanship for 5 years from date
of purchase. 1 year warranty applies to the following products: powered subwoofers and electronic devices
(e.g. subwoofer amplifi ers, and plate amplifi ers, as well as the Omnimic V2 and DATS loudspeaker testing
devices). In the rare case of a product failure, please contact your place of purchase or call our Customer
Support Department at [phone].

Warranty Limitations

There are no other warranties, either expressed or implied, that extend the foregoing, and there are no
warranties of merchantability or fi tness for any particular purpose. Dayton Audio is not responsible for any
consequential or inconsequential damage to any other unit or component or the cost for installation or
extraction of any component of the audio system, or for the improper use of products. This includes but is not
limited to burnt voice coils, overheating, bent frames, holes in the cone, or broken lead wires.

This warranty gives you specifi c legal rights and you may also have other rights that vary from state to state.

Non-Warranty Service: If non-warranty service is required, the product may be sent to the Company for
repair/replacement, transportation prepaid, by calling [phone] for details, complete instructions, and
service fee charges.

CLASS T DIGITAL
AUDIO AMPLIFIER

Model: DTA-120 User Manual

daytonaudio.com

tel + 937.743.8248
[e-mail]

Dayton Audio® Last Revised: 4/6/2015

705 Pleasant Valley Dr.
Springboro, OH 45066
USA

Thank you for purchasing the Dayton Audio DTA-120 Class T Digital Audio Power
Amplifier. This amplifier features the Tripath TK2050 chipset that provides 60W continuous
power per channel (120W total) into an 4 ohm load. Class T amplifiers using Tripath’s
proprietary Digital Power Processing ™ technology offer the audio fidelity of a Class AB
amplifier while providing the power efficiency of a Class D.

Features:

• 60W per channel RMS (120W total) into an 4 ohm load

• Audiophile quality sound with less than 0.01% THD @ 30W

• 1/4" Headphone jack allows the unit to double as a high fidelity headphone amplifier

• Convenient front mounted 3.5 mm input for quick connection of portable audio devices

• Compact extruded aluminum housing with thick black anodized faceplate

• Rear mounted RCA-type input for permanent connection of larger audio devices

• Short circuit, thermal, and overload protection

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.

Front Panel

Rear Panel:

5. Power Connection

The DTA-120 operates on 24VDC 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.

Rear Panel