Alpine KTP-445A Amplifier 4 Channel Head Unit Compact Power Pack 4x45w RMS
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The Alpine KTP-445A is a compact 4-channel power pack amplifier delivering 4 x 45W RMS (4 x 100W max) that plugs directly into compatible Alpine head units. It boosts the power to your speakers with no additional wiring and fits behind the head unit.
Key specifications
- Channels: 4
- RMS power: 4 x 45W
- Max power: 4 x 100W
- Compatibility: Alpine head units from 2005 to present
- Installation: plug and play, no additional wiring required
- Size: compact, fits behind the head unit
Head unit power pack KTP-445A
A compact four-channel amplifier that plugs directly into compatible Alpine head units, giving you a clean power boost without extra wiring. If you need a standalone amplifier with more power, Alpine also offer the Alpine BBX-F1200 4-channel amplifier at 280W RMS.
- 4 x 100W max
- 4 x 45W RMS
- Works with all 2005 to present Alpine head units
- Plug and play installation, no additional wiring required
- Compact size: fits neatly behind your head unit
Explore the full range in Alpine Amplifiers.
Specification
| Series | KTP |
|---|---|
| Article Number | KTP-445A |
| Country of Manufacture | China |
More specs
| |
What's Included
- Alpine KTP-445A Amplifier
Alpine
About the Alpine KTP-445A
From our tech experts at CEN
A 4-channel amplifier, rated at 45w RMS. Enough channels to run a front and rear stage, or a front stage with the rears bridged for a sub.
Who it suits
Drivers who have upgraded their speakers and found the head unit cannot drive them properly. This is the step that makes good speakers sound like good speakers. Amplification is also what turns a van or camper system from loud into clear.
Our tech experts advise
Power ratings only mean something when the amplifier is matched to the speakers and the gains are set with a meter rather than by ear. It needs a properly fused feed from the battery on the right gauge cable, which is the part we see done badly most often. Installation is priced per vehicle, so get in touch with your make, model and year and we will confirm what it needs and what the work involves. See car audio installation.
Explore the full Alpine range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Alpine
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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.
- 3
Fitted at our workshop
Bring it to our Beeston workshop and we do the rest.
Unit 25 Technology Drive, Beeston, Nottingham NG9 1LA
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Frequently Asked Questions
Q: How do I choose the right amplifier for my speakers or subwoofer?
A: Match the amplifier's RMS output per channel to the RMS handling of your speakers or subwoofer at the same impedance. The Specification tab lists the power figures. If in doubt, contact CEN with your setup and we will recommend a match.
Q: What class of amplifier is this and does it matter?
A: Class D amplifiers are compact and efficient, ideal for subwoofers and modern installs. Class AB designs are traditionally favoured for outright sound quality on mid and high frequencies. The class is listed in the Specification tab where provided.
Q: Can CEN install this amplifier?
A: Yes. CEN offers professional amplifier installation from our Nottingham premises, including secure mounting, wiring and setup. Contact us to book.
Q: Which head units work with the Alpine KTP-445A?
A: The KTP-445A works with Alpine head units from 2005 to the present and plugs directly into them.
Q: Does the KTP-445A need extra wiring?
A: No. It is a plug and play power pack that needs no additional wiring and fits neatly behind the head unit.
Q: How much power does the KTP-445A add?
A: It delivers 4 x 45W RMS, or 4 x 100W max.
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