Firenze-KS7
Firenze-KS7 is a self-powered active subwoofer from K-Array, housing two 21-inch neodymium magnet woofers with 5.31-inch voice coils in a wooden enclosure. It delivers up to 145 dB peak SPL with bass extension down to 25 Hz, and supports cardioid, gradient, and end-fire array configurations via its onboard DSP and up to 2 seconds of input delay.
Specifications
- Type: Active subwoofer
- Transducers: 2 x 21-inch neodymium magnet woofer, 5.31-inch voice coil
- Frequency response: 25 Hz to 120 Hz (-6 dB, with dedicated preset)
- Maximum SPL: 145 dB peak (crest factor 12 dB, measured at 1 m)
- Coverage: Omnidirectional
- Amplifier: 2-channel switch-mode Class D, 2 x 3500 W at 2 ohm (1% THD+N)
- Power consumption: 600 W at 4 ohm load, pink noise at 1/8 rated power
- Analog input: 1 x XLR balanced input, 1 x XLR balanced parallel output
- Digital input: 1 x XLR AES3
- Remote control: Dedicated PC software via Ethernet
- DSP: Input gain, delay up to 2 s, full parametric IIR filters (peaking, shelving, hi/lo pass, Butterworth), level and temperature monitoring
- Mains connector: powerCON True with link inlet
- Operating range: 100 to 240 V AC, 50 to 60 Hz with PFC
- Dimensions (W x H x D): 1162 x 590 x 851 mm
- Weight: 104.4 kg
- Cabinet material: Wood
- Colours: Black, White, Custom RAL
- IP rating: IP53
Applications
Suited to large-scale live sound, touring, and outdoor events requiring deep, high-output low-frequency reinforcement. The 2-second DSP delay and symmetric port design support gradient and cardioid sub configurations to control rear energy, as well as end-fire arrangements for directional bass projection. Can be used as a single point source or in arch array configurations. Pairs with the Firenze-KH7 line array element.
Standards and compliance
IP53 rated for protection against dust ingress and water spray from any direction.
Frequently asked questions
What array configurations does the Firenze-KS7 support?
The built-in DSP provides up to 2 seconds of input delay and precise frequency shaping, enabling gradient, cardioid, and end-fire sub arrangements, as well as single point-source and arch array use.
What amplifier is integrated into the Firenze-KS7?
A two-channel switch-mode Class D amplifier delivering 2 x 3500 W at 2 ohm is built into the enclosure. Mains connection uses a powerCON True connector with a link inlet for daisy-chaining.
How does the port design benefit performance?
The fully symmetrical ports maintain consistent back loading on both drivers, minimising air turbulence and distortion at high output levels.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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FAQs
What is your return policy?
All refunds and returns are determined by the manufacturer's terms of sale. Change-of-mind refunds are not accepted, but all valid warranty claims will be managed by AKA Acoustics in compliance with consumer law.
How long will it take to receive my order?
Freight lead times will be provided upon order confirmation. Standard items typically ship within 4–6 weeks, while custom orders may take 6–12 weeks.
Is my payment information secure?
Yes, all payments are securely processed through Stripe and are protected under their Terms of Service. AKA Acoustics do not store any payment information ourselves.
How are freight costs calculated?
Freight costs are determined at the time of quotation to ensure accurate pricing based on your specific order. For any questions, please email sales@akaacoustics.com
How can I contact support?
For account inquiries, email accounts@akaacoustics.com. For order support, email sales@akaacoustics.com.