DAP SI-4.450 4x 450w Install Amplifier

£495.00
£495.00
The DAP SI-4.450 is a compact and lightweight 4-channel power amplifier for fixed installations.
Vendor: DAP
SKU: 129-D4243
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Description:

The DAP SI-4.450 is a compact and lightweight 4-channel power amplifier for fixed installations. In a 1U rack space it delivers 4x 450 W into 4 ohms, is capable of driving 2-ohm loads and can be bridged for even more power. It is designed for low impedance and high current with excellent stability.
It has a clip limiter and DC output protection to prevent damage to the loudspeaker. Output overload and short-circuit protection protects the amplifier from faults, as does over-temperature protection and high-temperature power attenuation.

Signal, Clip, Fault and Power LEDs indicate the status of the amplifier. The output level can be adjusted for each channel using the volume controls. Gain can be set on the rear panel for 0.775 V input or 32 dB gain, and a mode switch selects stereo, mono and bridge modes.
The universal switching power supply uses active PFC and soft-switching technology, accepts input voltages from 100 - 250 V AC and is optimised for the audio power amplifier.

Specifications:

Outputs

2 ohms Stable Yes
Output per Channel into 8 ohms at 1 kHz 300 W
Output per Channel into 4 ohms at 1 kHz 450 W
Output per Channel into 2 ohms at 1 kHz 675 W
Bridge Output into 8 ohms at 1 kHz 900 W
Bridge Output into 4 ohms at 1 kHz 1350 W
Output Channels 4
Output Mode 4-channel, Bridge, Mono, Parallel, Stereo
Output Connector
Speaker Connector 4 pole
Inputs
Mono Inputs 4
Mono Input Connector 3-pin XLR
Mono Input Impedance 20000 Ω
Balanced Mono Input Sensitivity 32 dBu
Audio Specifications
THD Level < 0.05 %
Signal-to-noise Ratio > 100 dB
Slew Rate 50 V/μs
Amp Technology Class D
Damping Factor 1000 :1
Crosstalk 75 dBu
Frequency Response Minimum 20 Hz
Frequency Response Maximum 20000 Hz
Electrical Specifications and Connections
Power Supply 100-240 V AC 50/60 Hz
SMPS Yes
Power Consumption 550 W
Power Connector In IEC
Mechanical Specifications
Height (mm) 45 mm (1.772″)
Width (mm) 483 mm (19.016″)
Length (mm) 296 mm (11.654″)
Installation Depth (Excl. Connector) 296 mm (11.654″)
Flightcase Size 19"
Rack Units 1 U
Housing Steel
Colour Black
Finish Powder Coating
Weight 5.2 kg (11.464 lb)
IP Rating
IP20 (indoor use only)Product Properties
Electronic Protection Clip limiter, DC voltage, Overheat, Overload, Under voltage
LED Indicators Clip, Power, Protect, Signal
Thermal Specifications
Maximum Ambient Temperature 40 °C (104 °F)
Minimum Ambient Temperature -15 °C (5 °F)
Maximum Surface Temperature 70 °C (158 °F)
Included Items
Included Cables IEC cable
Included Accessories Rubber feet

Free Delivery

This is offered on all products regardless of order value to all mainland UK postcodes. Your purchase will be with you within 3 working days of your order being placed. If you are in the Scottish Highlands, Northern Ireland, Isle of Man and the Channel Isles you will still get free delivery but your order may take up to 5 working days to get to you.

I need my products quickly- can you help?

Absolutely! At check out you can select the option that suits you best.
We offer Next day, Saturday, Pre-10am and Pre-12pm delivery.
Unfortunately these options are not yet available for customers in the Scottish Highliands, Northern Ireland, Isle of Man and the Channel Isles.

When is the cut off for Next day delivery?

If you place your order before 3pm Monday-Friday, we will dispatch the same day.

For more information, including International delivery please click here.

Returns

Our returns department aims to help you as quickly as possible with any issues you may have with your product.
Please click here for more information on returning products.

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