1. Ngwaahịa gafereview
This manual provides instructions for the KICKER 48TRTP122 12-inch CompRT Down-Firing Loaded Subwoofer Enclosure, the DS18 CANDY-X1B Mono Class D Amplifier, and the accompanying DS18 AMPKIT4 4AWG Complete Amplifier Wiring Kit. This system is designed to enhance your vehicle's audio experience with powerful bass output.
2. Kedu ihe dị na Igbe ahụ
- Kicker 48TRTP122 12" CompRT Series Down-Firing Loaded Subwoofer Enclosure
- DS18 CANDY-X1B Mono Candy-X Series Car Ampna -emegharị ihe
- DS18 AMPKIT4 4AWG Complete Amplifier Kit, including:
- 17 ft 4 AWG Red Power Wire
- 3 ft 4 AWG Black Ground Wire
- 17 ft Remote Wire
- 17 ft Red/Black Speaker Cable
- 17 ft Red/Black Twisted RCA Cable
- Mini ANL Fuse Holder with Mini ANL 100A Fuse
- 6 ft 4 AWG Loom Tube
- 1 x Rubber Grommet
- 10 x eriri eriri
- 2 x Mgbanaka mgbanaka
- 2 x spade ọnụ
- 5 x Small Spade Terminals

Figure 2.1: Components of the DS18 AMPKIT4 4AWG Complete AmpKit.
3. Ntọala na nwụnye
Ntinye kwesịrị ekwesị dị oke mkpa maka arụmọrụ na nchekwa kacha mma. Ọ bụrụ na ị maghị ihe ị ga-eme, gakwuru ọkachamara na-etinye ọdịyo n'ụgbọala.
3.1 Nchekwa nchekwa
- Kwupu njikọ ọdụ batrị adịghị mma nke ụgbọ ala tupu ịmalite ọrụ eletrik ọ bụla.
- Gbaa mbọ hụ na etinyere wiwi niile nke ọma ma chekwaa ya ka ọ ghara igbochi mkpirisi na mmebi.
- Jiri akụrụngwa nchedo onwe onye kwesịrị ekwesị (PPE) mgbe ị na-etinye ya.
3.2 Subwoofer Enclosure Placement
The KICKER 48TRTP122 is a down-firing enclosure, designed to be placed in the trunk or cargo area of your vehicle. Ensure it is securely fastened to prevent movement during driving.

Figure 3.1: KICKER 48TRTP122 Down-Firing Subwoofer Enclosure.
3.3 Amplifier Ịkwalite
Mount the DS18 CANDY-X1B amplifier in a location that allows for adequate ventilation and protection from moisture. Common locations include under a seat, in the trunk, or on the back of a rear seat. Ensure it is securely mounted to prevent vibration damage.

Figure 3.2: DS18 CANDY-X1B Mono Class D Ampna -emegharị ihe.
3.4 Ntuziaka waya
Follow these steps carefully for wiring the system. Refer to the wiring diagram below for visual guidance.
- Power Wire (Red 4 AWG): Run the 17 ft red power wire from the vehicle's positive battery terminal to the fuse holder, then from the fuse holder to the +12V terminal on the DS18 amplifier. Ensure the fuse holder is installed close to the battery (within 18 inches).
- Ground Wire (Black 4 AWG): Connect the 3 ft black ground wire from the GND terminal on the amplifier to a clean, unpainted metal surface on the vehicle's chassis. Ensure a good electrical connection.
- Waya mgbanyụ anya: Connect the remote wire from your head unit's remote output to the REM terminal on the ampihe na-eme ka ihe dị ọcha. Waya a na-atụgharị ampgbanyụọ ma gbanyụọ ihe na-eme ka ihe na-ekpo ọkụ dị n'ime ya site na iji ihe na-eme ka isi gị dị jụụ.
- Eriri RCA: Connect the RCA cables from your head unit's subwoofer output (or full-range output if no dedicated sub output) to the RCA input jacks on the DS18 ampna -emegharị ihe.
- Waya Ọkà Okwu: Jikọọ eriri igwe okwu site na amplifier's speaker output terminals to the KICKER subwoofer enclosure's input terminals. Ensure correct polarity (+ to + and - to -). The KICKER 48TRTP122 enclosure has a 2-ohm impedance.
- Remote Bass: Connect the included bass remote to the dedicated remote port on the DS18 amplifier. Mount the remote in an accessible location for easy adjustment.

Figure 3.3: Subwoofer to Amplifier Wiring Diagram (2-ohm connection).

Figure 3.4: DS18 Bass Remote Control.
4. Ntuziaka ọrụ
Once the system is installed, follow these steps to configure and operate your subwoofer and ampna -emegharị ihe.
4.1 Initial Power-Up and Gain Setting
- Jikọọ ọnụ batrị adịghị mma nke ụgbọ ala.
- Gbanye isi gị. amplifier should power on (indicated by a blue LED on the ampna -eme mkpọtụ).
- Tọọ nke amplifier's GAIN control to its minimum (fully counter-clockwise) position.
- Play a music track with strong bass at a moderate volume level on your head unit (around 75% of maximum volume).
- Slowly increase the GAIN control on the amplifier until you hear distortion, then back it off slightly until the sound is clear. This sets the maximum clean output level.
4.2 Amplifier Controls (DS18 CANDY-X1B)
The DS18 CANDY-X1B amplifier features several controls for fine-tuning your bass output:
- Nweta: Adjusts the input sensitivity to match the output of your head unit. (See 4.1)
- BASS BOOST (0-18 dB): Increases the bass output at a specific frequency (typically around 45 Hz). Use sparingly to avoid distortion and speaker damage.
- LPF (Low-Pass Filter) (50-150 Hz): This filter allows only frequencies below the set point to pass through to the subwoofer. Adjust to blend the subwoofer's output seamlessly with your main speakers.
- SUBSONIC FILTER (10-55 Hz): Filters out extremely low frequencies that are inaudible and can cause damage to the subwoofer. Set it slightly below your subwoofer's lowest usable frequency.
- PHASE (0/180 degrees): Adjusts the phase of the subwoofer output relative to your main speakers. Experiment with both settings to find the one that provides the most impactful and coherent bass.
- Wepu: Port for connecting the wired bass remote control, allowing convenient bass level adjustment from the driver's seat.

Figure 4.1: DS18 CANDY-X1B Amplifier Controls.
5. Nlekọta
Regular maintenance ensures the longevity and optimal performance of your audio system.
- Nhicha: Debe ihe mkpuchi subwoofer na amplifier clean and free of dust and debris. Use a soft, dry cloth. Avoid liquid cleaners directly on components.
- Njikọ: Na-elele njikọ waya niile mgbe niile iji hụ na ha siri ike ma ọ bụ na ha anaghị emebi emebi. Njikọ ndị na-adịghị mma nwere ike ibute arụmọrụ adịghị mma ma ọ bụ mmebi.
- Igwe ikuku: Gbaa mbọ hụ na amplifier's cooling fins are not obstructed to prevent overheating.
- Nyochaa fiusi: Ọ bụrụ na amplifier does not power on, check the fuse in the fuse holder near the battery. Replace with a fuse of the same rating (100A Mini ANL).
6. Nchọpụta nsogbu
Rụtụ aka na ngalaba a maka okwu nkịtị na azịza ha.
| Nsogbu | Ihe nwere ike ime | Ngwọta |
|---|---|---|
| Enweghị ụda sitere na subwoofer |
|
|
| Ụda agbagọ |
|
|
| Amplifier ekpo oke ọkụ |
|
|
| Bass remote not working |
|
|
7. Nkọwapụta
Detailed specifications for the components in this bundle.
7.1 KICKER 48TRTP122 12" CompRT Subwoofer Enclosure
- Ụdị ọkà okwu: Subwoofer
- Dayameta Subwoofer: 12 sentimita asatọ
- Ọnụ ọgụgụ kasị elu Power: 1000 watt
- Ike RMS: 500 watt
- Mgbochi: 2 ohm
- Mmetụta: 98dB
- Njirimara Pụrụ Iche: Down-Firing, Active thin-mount CompRT subwoofer, High-output reFLEX passive woofer
- Ihe: Ọkara njupụta Fiberboard
- Akụkụ: 27.5" W x 6.125" H x 14.625" D (Top) x 14.625" D (Bottom)
7.2 DS18 CANDY-X1B Mono Class D Ampna -emegharị ihe
- Nleba ike RMS:
- 4 ohms: 240 watts x 1 ọwa
- 2 ohms: 400 watts x 1 ọwa
- 1 ohm: 600 watts x 1 channel
- Mmepụta ikike Max: 1800 watt
- Mmetụta: 100dB
- Nzaghachi ugboro ugboro: 20-150 Hz
- Remote Bass: gụnyere
- Nhazi: Klas D
- Mgbali elu Bass dị iche iche: 0-18 dB
- Variable Low-pass filter (LPF): 50-150 Hz
- Subsonic Myọcha: 10-55 Hz
- Akụkụ: 5.9" W x 8.3" D x 2.16" H
7.3 DS18 AMPKIT4 4AWG Complete AmpKit
- Waya nlele: 4 AWG
- Ihe waya: High Performance CCA (Copper Clad Aluminum)
- Akwadoro maka: Otu amplifier up to 1300 Watts
- Ngwa gụnyere: Power wire, ground wire, remote wire, speaker cable, RCA cable, fuse holder with 100A fuse, loom tube, grommet, cable ties, various terminals.
8. Akwụkwọ ikike Ozi
This product bundle typically comes with a manufacturer's warranty. The KICKER 48TRTP122 subwoofer enclosure and DS18 CANDY-X1B amplifier are covered by a full warranty from their respective manufacturers. Specific warranty terms, duration, and coverage details may vary. Please retain your proof of purchase for warranty claims.
For detailed warranty information, refer to the documentation included with each individual component or visit the respective manufacturer's official websaịtị.
9. Nkwado
If you encounter issues not covered in this manual or require further assistance, please contact the manufacturer's customer support:
- KICKER Support: Visit the official KICKER websaịtị maka akụrụngwa nkwado, FAQs, na ozi kọntaktị.
- DS18 Support: Visit the official DS18 website for product support and contact details.
When contacting support, please have your product model numbers (48TRTP122, CANDY-X1B, AMPKIT4) and proof of purchase readily available.





