Dali Sub E-9F Subwoofer 170 Watt RMS

HIGH-YIELD AMPLIFIER

All amplifiers in DALI subwoofers have the stamina to keep a high-yield performance and the headroom to draw out that little extra when needed.

FLEXIBLE CONNECTIVITY

All DALI subwoofers are compatible with almost any amplifier, receiver or processor due to the choice of LFE or LINE inputs.

ELIMINATE TURBULENCE

Appearing to hover above the floor, the cabinet is effectively decoupled from the floor by means of four polymer-based oversized spikes. The distance of 30 mm eliminates any potential turbulence from the space between the cabinet and the floor itself.

ELEGANT AND SIMPLE DESIGN

The cabinet is designed to fit perfectly to the size of the woofer, but without forgoing the inner volume that is needed to produce a powerful bass performance.

AMPLIFIER

The integrated 170 Watt RMS Class D amplifier is a highly linear construction. The DALI SUB E-9 F will follow and render the required signal with an absolute minimum of bias. Designed not only for continuous power, but also for peak power, this subwoofer is able to deliver 220 Watt Peak Power. This is very relevant when it comes to both movie and music signals.

Switchmode power supply is part of the reason for very low power consumption - only 0.4 Watt in stand-by mode. And the amplifier displays an impressive efficiency of 70%. In unison the high-efficiency amplifier section and power supply construction generate an absolute minimum of heat loss. For that reason you will find no external heat sink on this subwoofer.

To improve sound reproduction in general, and to ensure that this subwoofer is able to perform under difficult circumstances, a limiter has been incorporated in the amplifier section.

The integrated limiter works in two areas: It compares the input signal amplitude to the potential output signal level, and it compares the available supply voltage from the power supply to the expected output signal. If any of these comparisons show that there will be a problem then the limiter will cut the signal in a soft manner and without affecting peak power.

Fitted with controls for gain, cut-off frequency, and phase, the DALI SUB E-9 F will adapt to any front speaker and room acoustics. And with a choice of LFE and LINE inputs it can be connected to almost any

WOOFER

The DALI SUB E-9 F incorporates an aluminium cone woofer. This stiff, yet lightweight, material was chosen to ensure a greater transient response as you would normally expect from a subwoofer in this category. Very much in line with DALI’s philosophy in building speakers, the ability to start and stop very quickly enables easy integration with the front speakers.

Designed to be a closed cone you will find no dust cap. Instead it is an integrated part of the cone itself. This is also a contributing factor in ensuring a piston-like behaviour. Consequently distortion is kept to an absolute minimum – especially in the low frequency area which is where the subwoofer operates.

The engine of the woofer is built around an ‘oversized’ ferrite magnet, and optimized for maximum flux within the voice coil gap. The reason is that it was crucial for the project team to reach a high B/L product to enable the SUB E-9 F to render the finer low frequency details of music, also at a higher sound pressure level. The measured B/L value of 14 N/Ampere is a good indication of the level of control and precision that was reached, and rarely to be found in this category at all. And the numerous listening sessions has truly convinced us that this was the right way to go.

Adhering to the low-loss sound design principle, the surround of the woofer is built to allow long and linear excursion. The oversized suspension is designed to allow both weak and strong transients to turn into undistorted acoustic signals.

DALI SUB E-9 F SPECS

Product series SUBWOOFERS

Frequency Range (+/-3 dB) [Hz]         37 - 200

Maximum SPL [dB]      111

Crossover Frequency [Hz]       40 - 120

Low frequency driver, Quantity            1 x 9" long stroke

Low frequency driver, Diaphragm type            Aluminium

Enclosure type Bass Reflex

Bass Reflex Tuning Frequency [Hz]    39.0

Max. Amplifier Power Output [RMS watt]         220

Continous IEC Power Output [RMS watt]        170

Input Impedance [ohms]          25k

Connection Input         Mono (LFE)

RCA

Stereo (low-pass filtered)

Magnetic Shielding      No

Recommended Placement      Floor

Recommended Distance From Wall [cm]        10 - 30

Functions         Crossover Frequency

Phase Switch

Standby (Auto Power) On/Off Switch

Volume (Gain)

Max. Power Consumption [W] 250

Dimensions With Base (HxWxD) [mm]            307 x 288 x 311

Accessories Included   Manual

Weight [kg]      11.0