Lightweight enclosure for easy transport, set up and installation
Versatile design - pole-mountable, wedge monitor or flown application with integral M10 suspension points
Powerful and efficient class D amplifiers with fanless cooling design to run cleaner, quieter and with greater long-term reliability
Designed and tuned in the USA
Louder. Clearer. Smarter.
Where TS3 exceeded expectations, TS4 redefines them completely.
Building on the legacy of our best-selling TrueSonic speakers, the TS4 Series delivers increased power, clearer sound, and advanced Bluetooth functions including streaming, speaker linking, and App control.
Compact, lightweight, and designed for reliability, the new TS4 Series makes it simple to get great live sound at every event.
True Sonic Power
Whether you need a powerful vocal PA or club-shaking bass performance for a DJ set, TS4 speakers deliver loud, clear, room-filling sound for any application.
With a 12-inch woofer, and a 1.4-inch compression driver, TS412 delivers 2500W of class-leading power and clarity in equal measure.
FREE Alto App for remote configuration and control
Available free for both Android and iOS, the Alto App gives hands-on remote control over Bluetooth levels, Speaker Use Modes, Custom EQ and Sub Size selection. Further, True Wireless Stereo linking can be configured remotely via the app to save time during setup.
Built-In 3-channel mixer
Every TS4 features an integrated 3-channel mixer, with two Mic/Line input channels and a dedicated Bluetooth channel. The Mic/Line channels feature XLR/TRS combo jacks and can be used with microphones, instruments, and line-level signals without the need for additional hardware or adjustment. Just plug straight into the rear panel and you’re up and running.
Simple Bluetooth Streaming & Speaker Linking
The ideal high-powered streaming solution, TS4’s built-in Bluetooth connectivity makes it easy to pair your laptop, phone or tablet and get the music pumping in no time at all.
With the True Wireless Stereo function you can stream Bluetooth audio to two TS4 speakers in perfect stereo without the need for any cables.
DSP Modes for the best sound in every application
TS4’s three preset “Speaker Use” modes let you optimize the speaker for any application, so you’ll get great sound every time at the touch of a button. For even more control over your sound, you can configure a Custom EQ within the Alto App and remote adjust the settings from any listening point in the venue. You can even save your favorite Custom EQ setting direct to the TS4 for easy recall whenever you need it.
Versatile and Reliable
From the high-quality drivers to the fanless class D amplifiers, every aspect of the TS4 Series has been designed for superb reliability, whether used for mobile gigs and performances or fixed installation.
Each speaker features a lightweight, sleek, black box design that can be used as the application demands - freestanding, as a wedge monitor, pole-mounted or suspended via the integrated suspension points.
Level up your live sound. Choose Alto Professional’s TS4 Series.
TECHINFORMATION
Output Power:2500 W
Low-Frequency Driver: 12.0” driver, 2.5” (63 mm) high-temperature voice coil. 1 x 800 W RMS @ 2 Ω.
High-Frequency Driver: 1.0” exit ceramic driver with 1.4” (35 mm) coil. 1 x 450 W @ 4 Ω.
Crossover Frequency:2 kHz
Maximum SPL:132 dB (peak), 129 dB (continuous) (dB-SPL @ 1 m)
Frequency Response:53 Hz – 20 kHz (+/-3 dB)
Frequency Range:44 Hz – 20 kHz (-10 dB)
Horn Coverage:90° horizontal x 60° vertical (nominal)
Line Gain/Volume Control Range:-∞ to 0 dB, +4 dBu nominal, +10 dBu for max output
Mic/Inst. Gain/VolumeControl Range:-∞ to +50 dB
USB Charging Port:5V 2.1A
Controls:Power switch, (2) gain control knobs (1 per input), (2) Mic/Line switches, Bluetooth volume control encoder, Pairing button, Stereo Link button, Sub Size button, Speaker Use button
Indicators:(1) Input Channel Signal/Limit/Clip LED (Green = Ch1/2 Signal) (Yellow = Ch1/2 Limiter) (Red = Ch1/2 Output Clipped), (1) Bluetooth LED (Blue),(1) Link LED (Orange),(4) DSP Presets LED (Green),(3) HPF LED (Green)
Protection:Electronic clip, thermal, and transducer overdrive protection
Enclosure:Injected Molded Enclosure and Perforated Metal Grille
Mounting/Installation:Standard 36 mm pole socket, flown application with integral M10 suspension points, or in a wedge monitor position
Operating Temperature:-10°C to 45°C (14°F to 113°F)
Dimensions:(height x width x depth)23.9” x 13.9” x 13.8” / 606.5 x 353.5 x 350.5 mm
Weight33 lbs. / 15 kg
Payment & Security
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Refund Policy
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unused, with all accessories and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at boutique@seconcept.com. If your return is accepted, we’ll send you a return shipping label (at your expenses) as well as instructions on how and where to send your package back. Items sent back to us without first requesting a return will not be accepted and not refunded.
You can always contact us for any questions prior to purchase by email at: boutique@seconcept.com.
Damages and issues Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
All Returns must contain all associated packaging and materials (ie accessories, manuals, wires, etc). Merchandise that is not returned in brand-new condition, including damages, abuse, marks, showing wear, or with missing packaging or accessories, will be subject to additional charges. Shipping and Handling charges (delivery and return) are non-refundable, including any shipping fees not directly incurred that are part of a free shipping promotion. Any items packaged with software, including but not limited to, DJ Controllers, Audio Interfaces, etc., must be returned with the original software disc including serial number and proof of deactivation.
We cannot accept returns on liquidation, special orders, liquid, needles, parts, used, sales, open box item or gift cards.
Exchanges The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
Refunds We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.
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