Alto Professional TS115

2-way 15" TRUESONIC Series Passive Speaker 250W Continuous / 500W Program / 1000W Peak


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Product Features

  • 1000 Watt 2-way 15" Passive Speaker System with 1" Compression Driver
  • Power Handling:
    • Continuous: 250 watts
    • Peak: 1000 watts
  • 15” LF transducer with 2.5" voice coil
  • Dual electronic driver protection circuits
  • Compact, lightweight design, trapezoidal cabinet design for easy transport and installation
  • Two parallel Speakon NL4 jacks for input and thru connection
  • Multi purpose cabinet can be used as a traditional upright loudspeaker or in a floor wedge monitor format
  • 35mm pole socket
  • Multiple rigging points
  • Designed and tuned in the USA
  • Professional audio for live performance, DJs, corporate events, and recorded music playback
  • Frequency Response (-10dB): 48 Hz-18 KHz
  • Sensitivity (1w @ 1mt): 97 dB SPL
  • Impedance: 8 ohms (nominal)
  • Maximum SPL @ 1m: 121 dB continuous/ 127 dB peak
  • Dimensions: 17"L x 26-3/4"W x 14-3/8"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty
  • Also Found as: ts112 TS-112

Loudspeaker Specifications

This is the type of professional loudspeaker. Active loudspeakers have a built-in amplifier to power the speakers. Passive loudspeakers require an external amplifier to be properly powered.
High Frequency Driver Size
This is the size of the high frequency driver. Common sizes include 1", 1-1/2" and 2".
Low Frequency Driver Size
This is the size of the low frequency driver. Common sizes include 10", 12", and 15".
15" Driver
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
48 - 18000 Hz
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
97 dB
Maximum Sound Pressure Level SPL
This is the maximum Sound Pressure Level (SPL) of the professional loudspeaker. The higher the SPL rating, the louder the monitors are able to go.
127 dB

Passive Power Specifications

Peak Power Handling
This is the maximum amount of power (measured in watts) that the speaker is designed to receive.
1000 watts
Continuous Power Handling
This is the amount of power (measured in watts) that the speaker is designed to receive continuously.
250 watts
Nominal Impedance
This is the nominal input impedance of the passive loudspeaker.
8 ohm

Physical Features

These are the types of input connections that connect to the professional loudspeaker.
These are the types of output connections that connect to the professional loudspeaker.
Enclosure Material
This is the material that the speaker's enclosure is made out of.
Carrying Handles
Carrying handles are found on the enclosure and they make transporting the speaker easier.
Speaker Mounts
Speaker mounts enable the loudspeaker to be mounted to a stand or tripod.
The height of the item, measured from top to bottom, in inches.
The width of the item from left to right (side-to-side) measured in inches.
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
Weight (Pounds)
This is the weight of the item in pounds (lbs).
43 lbs

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


Boynton Beach, FL

excellent product!

August 28, 2013

Nice quality sound... Big bang for the chips!!!!! Highly recommended

10 of 13 found this helpful

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Sanborn, NY

Great Sound, Reliable is Questionable..

April 11, 2014

I have owned 2 of these speakers for a little over a year and they have been great to me. The sound is very good and they have enough power to fill a large room. They have 2 inputs on the back so you can plug in a microphone, and another sound source. They are designed so they can stack on top of one another with ease and have 3 handles to make them easy to move.

The problem I ran into with these speakers is their reliability. I have run into problems with the low end on both of these speakers after about 15 months of usage. I enjoyed them so much that I ordered another pair to replace them in hopes that it would not happen a second time. I have researched other alternative options and am unsure what the sound quality is for the others. I can vouch that this speaker sounds good. Only thing I don't like so much about powered speakers is you need to run 2 extra cords to power them. Another thing is you should consider having them close because they feature a peak indicator which will light if it is peaking. If it isn't close, you may not know they are peaking which may cause problems for you. This is something that must be considered with all powered speakers though.

7 of 9 found this helpful

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Browse 1 question and 1 answer
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Why did you choose this?
Sonic Electronix Store
I had the other speaker
Charles H on Sep 4, 2014

Product Summary


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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Alto Professional TS115

Item Added to Cart

Alto Professional TS115

2-way 15" TRUESONIC Series Passive Speaker 250W Continuous / 500W Program / 1000W Peak


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