COMPACT
Compact size lets the KTP-445U fit where most amplifiers won’t. The KTP-445U comes equipped with the RCA and Auto-Sensing-Speaker level connectors and it fits behind the head unit in the dash of most vehicles. It's small and compact at only 7-7/16” x 1-1/2” x 2-1/2”. The size and flexible wires make the Power Pack an easy choice to save space.
INDEPENDENT FILTERS FOR REAR & FRONT INPUTS
High-Pass selectable switches for Front & Rear allow frequency filtering for a wide variety of speakers. Choose from full range to selectable range: 60Hz, 80Hz or 120Hz to fine-tune your crossover points.
CONFIGURABLE INPUTS
Need configurable options for Speaker-Level or RCA inputs to the Power Pack? On the bottom panel of the Power Pack there are selectable input options to accommodate Speaker-Level (0.5V-10V) or RCA (0.2V – 4V) inputs. Selectable 2 Channel and 4 Channel options give you the control to determine source inputs, and can eliminate the need for Y-adapters.
ACCESSIBLE FRONT & REAR GAINS
The Power Pack provides simple variable gain controls on the end panel for flexibility and a wide variety of system applications.
BEST SIGNAL-TO-NOISE CONTENDER IN ITS CLASS
In order to ensure that Alpine sound quality is heard at your ears, we’ve created a platform that offers an unbelievably low noise floor, taking extra care to ensure a clean signal path, with no extraneous interference. The end result: The Power Pack boasts 1 Watt Signal-to-Noise Ratio of 82dB or better.
TOTAL HARMONIC DISTORTION (THD+N) VS. FREQUENCY
Uniquely, the Power Pack distortion actually decreases at higher frequencies, resulting in a clean and clear signal where your ear is most sensitive to distortion. - < 0.03% THD+N @ 1W, 1% THD+N @ rated power.
Number of Channels | 4 |
Class | D |
Peak Power Rating (Watts) | 90x4 |
RMS Power Rating (Watts x Channels) - 4 Ohms | 45 x 4 |
RMS Power Rating (Watts x Channels) - 2 Ohms | 45 x 4 |
| RMS Power Rating - Bridged | 90 x 2 |
| Minimum Impedance Unbridged (Ohms) | 2 |
| Minimum Impedance Bridged (Ohms) | 4 |
| THD at Rated RMS Power | 1% |
| Bulit-in Crossover - Low Pass | Yes |
| Built-in Crossover - High Pass | Yes |
| High Pass Crossover Frequency (Hz) | 60, 80, 120hz |
| Low Pass Crossover Frequency (Hz) | N/A |
| Signal-to-Noise Ratio | 80dB |
| Bass Boost | No |
| Bass Remote Included | No |
| Fuse Rating | 15A |
| CEA-2006 Compliant | Yes |
| Maximum Power Wire Gauge Size | N/A |
| Warranty | 1 Year |
For all orders exceeding a value of 100USD shipping is offered for free.
Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item.
Otherwise, standard shipping charges apply. Check out our delivery Terms & Conditions for more details.
