ESB 5.6K2 Cinquemila Series 6.5 Inch 2 Way Component Speaker System 160w RMS
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The ESB 5.6K2 is a 6.5 inch 2-way component speaker system from ESB Audio's Cinquemila Series, pairing 5.165 6.5 inch mid-woofers (160W RMS, 3 ohm) with 5.028 1.1 inch dome tweeters (110W RMS, 4 ohm). This listing includes the tweeters and woofers only — without a passive crossover.
This listing is the 5.6K2 (drivers only). The ESB 5.6K2X is also available and includes the matching 5.6K2 CX passive crossover.
Key specifications
- Type: 2-way component system
- Mid-woofer: 5.165, 6.5 inch, 3 ohm
- Mid-woofer power: 160W RMS / 320W transient
- Mid-woofer frequency response: 50 Hz – 3.5 kHz
- Mid-woofer sensitivity: 95 dB (2.83V/1m)
- Tweeter: 5.028 dome, 4 ohm
- Tweeter power: 110W RMS / 220W transient
- Tweeter frequency response: 900 Hz – 25 kHz
- Tweeter sensitivity: 94 dB (2.83V/1m)
- In the box: 5.028 tweeters, 5.165 woofers
Italian Sound Engineering
ESB Audio builds its reputation on carefully engineered drivers and natural tonal balance. The Cinquemila series brings that philosophy to a system that rewards good amplification.
Explore the full range in ESB 4000 & Cinquemila.
Specification
| Nominal Impedance | 3 Ohm |
|---|---|
| Nominal Power | 160 Watt |
| Transient Power | 320 Watt |
| Frequency Response | 50 Hz ~ 3.5 KHz |
| Sensitivity | 95 dB 2.83v/1m |
| Nominal Impedance | 4 Ohm |
| Nominal Power Handling | 110 Watt |
| Transient Power | 220 Watt |
| Frequency Response | 900 Hz ~ 25 KHz |
| Sensitivity | 94 dB 2.83v/1m |
What's Included
- 5.028 Tweeters
- 5.165 Woofers
ESB Audio
About the ESB Audio 5.6K2
From our tech experts at CEN
The ESB 5.6K2 is a 6.5 inch 2-way component speaker system from ESB Audio's Cinquemila Series, pairing the 5.165 mid-woofer (160W RMS, 3 ohm) with the 5.028 1.1 inch dome tweeter (110W RMS, 4 ohm). This listing supplies drivers only — no passive crossover is included. If you need a crossover, the ESB 5.6K2X version adds the matching 5.6K2 CX passive crossover.
Who it suits
These drivers suit experienced builders running a DSP processor or active crossover who want precise control over frequency split and tuning. High sensitivity (95 dB on the woofer) means they work well without excessive amplifier power. For a complete component set with a passive crossover already supplied, see the ESB 3.6K2X Tremila Series.
Our tech experts advise
The mid-woofer is rated at 3 ohm, so confirm your amplifier is stable at that impedance before ordering. You will need a DSP unit or active crossover to manage the frequency split correctly — this is not a plug-and-play installation. Fitting costs vary per vehicle; speak to our team via our Nottingham installation service.
Explore the full ESB Audio range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all ESB Audio
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Have it Fitted By Our Team
Our team fits car audio, stereos, dash cams and vehicle security at our workshop in Beeston, Nottingham. Tell us your vehicle and we'll confirm the parts and a fitted price.
- 1
Tell us your vehicle
Make, model and year, and what you'd like fitted.
- 2
We confirm the parts
Fascia, wiring and interfaces checked for your car, with a fitted price.
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Fitted at our workshop
Bring it to our Beeston workshop and we do the rest.
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Frequently Asked Questions
Q: Will these speakers fit my car?
A: Most car speakers are standard sizes, but mounting depth and fitting rings vary by vehicle. Check the size in the Specification tab against your vehicle, or contact CEN with your registration and we will confirm fitment and any adapters or fitting kits you need.
Q: Do I need an amplifier to run these speakers?
A: Not always. Most speakers will run from a standard head unit, but a dedicated amplifier lets them perform at their best, particularly for component sets and higher power handling models. The RMS figure in the Specification tab is the guide to how much clean power they can use.
Q: What is the difference between coaxial and component speakers?
A: Coaxial speakers combine the tweeter and woofer in one unit for a simple like-for-like upgrade. Component sets separate the tweeter and woofer with a crossover for better imaging and detail, and suit installs where sound quality is the priority.
Q: Do these come as a pair?
A: Unless stated otherwise, car speakers are sold in pairs. Check the product title and What's Included tab, which lists exactly what is in the box.
Q: Can CEN fit these speakers for me?
A: Yes. CEN offers professional installation from our Nottingham premises. Contact us to book an installation slot or ask for a fitting quote.
Q: Does the ESB 5.6K2 include a crossover?
A: The 5.6K2 contains the 5.028 tweeters and 5.165 woofers. If you want the matching 5.6K2 CX passive crossover included, choose the ESB 5.6K2X.
Q: What impedance are the ESB 5.6K2 drivers?
A: The 5.165 mid-woofers are 3 ohm and the 5.028 tweeters are 4 ohm, which is worth checking against your amplifier.
Q: What is the power rating of the ESB 5.6K2?
A: The 5.165 mid-woofers handle 160W RMS (320W transient) and the 5.028 tweeters handle 110W RMS (220W transient).
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