
Review Summary
18" bass reflex, direct radiating, subwoofer
27-160kHz (-10 dB)
29-140kHz (+/-3 dB)
133dB at 1m (Measured)
2400 watts
1200 watts
Class D/Switching
Passive
18" (458mm) ultra-high excursion cone transducer, 4" (101mm) voice coil, ferrite magnet
High-pass & low-pass crossover filters, transducer EQ and time alignment, transducer excursion, thermal, and amplifier clip protection
Rear panel selection of 5 DSP low-pass modes: (80 Hz, 100 Hz, 120 Hz, 140 Hz, User) Polarity reverse enable/ disable XLR out high-pass filter bypass enable/disable
Bluetooth 2.0 + EDR. Class 2 RF
82' / 24.99m clear line-of-sight (typical)
Live Drive (app by Alto Professional, available on the App Store)
1 to 3 Delta Series loudspeakers
iPhone 3GS and newer, iPad 2 and newer, iPod touch (4th generation) and newer
iOS 6.1 and newer
Level Control (-Infinity to + 10dB), Mute, Signal level metering (-70 to 0dB) DSP Low pass mode (80 Hz, 100 Hz, 120 Hz, 140 Hz, User) Rear Panel control lockout, Bass-Tilt EQ, Delay, Polarity, User low-pass filter, Monitoring (Limit, Peak, Fault)
Fully regulated switching, with Power Factor Correction
100-240 VAC, 50/60Hz
90-264 VAC, 50/60Hz
Automatic (self-regulating)
Male IEC
6A per system at 120 VAC
3A per system at 240 VAC
9.8' / 2.99m IEC female to regional AC male, 18 AWG
2x XLR/TRS combo connectors, balanced
10KOhms balanced, 20KOhms unbalanced
Rotary volume control to control subwoofer level
Positive voltage applied to XLR Pin 2 generates positive pressure from LF driver. Reversible via rear panel switch
2x male XLR, with loop-through high-pass filter bypass filter bypass via by rear panel switch
Switch to select output mix pre- or post-volume control
Push-button to lift input signal input ground connection
Momentary contact to initiate Bluetooth pairing mode
Momentary contact to cycle through DSP EQ modes
5 total: 80 Hz, 100 Hz, 120 Hz, 140 Hz, User
Live Drive iOS app over Bluetooth
Recessed push-button switch
Recessed push-button switch
Signal Present / Limit, Power/Standby
-Infinity to 10dB, detented at 0dB, +4dBu nominal input level, +10dBu input level for max output
15mm and 18mm premium plywood, internally-braced
High-durability, textured, catalyzed polyurethane
12x M10 female threaded screw sockets
2x Ergonomic handle with aluminum cross-bar
1x 35mm female socket
1.2mm-thick perforated steel, black powder-coat
-10 to 40 deg. C / 14 to 104 deg. F
24.9 x 20.9 x 28.4" / 632.46 x 530.86 x 721.36mm
104.7lbs / 47.49kg
694318017319
For situations that demand the ultimate in speaker performance, Denon Professional proudly offers the Delta Series-a family of powered loudspeakers that delivers the very highest level of acoustic performance, essential for critical musical productions, dynamic AV playback and clear, articulate spoken presentations. The Delta Series was designed from a clean sheet of paper to exacting performance standards, using custom-developed, purpose-matched components.
Unrivaled acoustic accuracy via advanced engineering and design
2400 watts peak Class D power (1200 Watts continuous)
15" LF transducer delivers powerful sound
Computer-designed vented enclosure for optimum bass response
Works with free Denon Drive app for wireless sound-shaping control
Wirelessly level-match, EQ, delay-compensation and more
DSP-controlled, custom crossover and active thermal protection
Built-in mixer, (2) Mic/Line inputs, volume control, XLR output
Limit/Clip indicator with red LED
Built-in 35mm pole socket
EQ contour switch; Ground Lift switch
Flyable via (12) M10 rigging points
Designed and tuned in the U.S.A.
Solid Fundamentals
The Delta 18 Sub powered subwoofer is designed to add the deep, solid bass foundation needed for convincing, lifelike music and multimedia presentations. It features an integral low-distortion Class D amplifier capable of 2400 watts peak output (1200 watts continuous), a rugged 18-inch LF transducer, DSP-controlled custom crossovers, EQ contour switch and a computer-designed vented enclosure for optimum low-frequency response at high SPLs with minimal distortion. The Delta 18 Sub has extremely flexible connection/control facilities for adapting to any usage condition. Plus, it utilizes dynamic thermal protection, to ensure reliable, crystal-clear bass reproduction- even at extreme volume levels.
However, it's not the printed specifications or the number of inputs and outputs that qualifies the Delta 18 Sub as such an elite performer. It's the performance. The quality and depth of the bass is effortless, powerful and natural. There is no sense of strain or distortion; the sound is utterly authoritative. With lesser subwoofers, the listener can immediately hear the "reproduced" nature of the bass: the thin, lightweight character to the sound, the lack of f weight' that should be more felt than heard. This is what betrays the sound of an inaccurate subwoofer.
When you hear the Delta 18 Sub as part of a full Delta sound system, it sounds stunning. The full frequency range is conveyed with absolute authority, providing convincing, realistic sound from any genre of music. Bass instruments are full and muscular. Vocals are supported with while drums and percussion have great impact and impressive weight. Even today's complex, multi-layer music is reproduced with agility and nuance at any volume, from subtle indoor settings to full-volume outdoor concerts.
The Right Connections
Denon Professional recognizes that adaptability and connection flexibility are just as important to a successful event as outstanding sonic performance. Therefore, the Delta series features a built-in mixer with multiple inputs and outputs. The cabinets are scratch-resistant, fronted with a powder-coated metal grille-perfect for anything from vocal reinforcement in a lecture hall to music-rich multimedia presentations in convention.
Even their rubber feet are reinforced with steel. You can hang the Delta series via their integrated M10 rigging points or use the "tops" as floor wedge monitors. The Delta 18 Sub features a built-in industry-standard 35mm pole sockets. This level of connection and mounting options means that virtually every situation benefits from using Delta Series loudspeakers.
Remote Control
Even if you can't physically reach the speakers, you can still adjust them with your iPad or iPhone using the Drive iOS app. With their wireless technology, you can precisely tailor the performance parameters of your Delta Series loudspeakers remotely. Level-match, adjust EQ, delay-compensation and more-from virtually anywhere. It's streamlined, sound-shaping control at your fingertips, so you can easily adapt the Delta Series to new venues or performances, even if you're away from the mix position.