1. Sarrera
Thank you for choosing the Zapco ST-4XP-SQ-III 4-Channel Class AB 800W RMS Sound Quality Amplififikatzailea. Eskuliburu honek zure instalazio, funtzionamendu eta mantentze egokirako ezinbesteko informazioa ematen du. amplifier. Please read this manual thoroughly before attempting to install or operate the unit to ensure optimal performance and safety.

This image displays the Zapco ST-4XP-SQ-III ampbizitzailea, erakustaldiaasing its sleek design and heat sink fins. The main body is silver with a black central panel featuring the Zapco logo.
2. Segurtasun informazioa
Beti bete segurtasun neurri hauek instalazioan eta funtzionamenduan zehar:
- Deskonektatu ibilgailuaren bateriaren terminal negatiboa edozein kableatu egin aurretik.
- Ziurtatu kableatu guztia behar bezala bideratuta eta finkatuta dagoela kalteak edo zirkuitulaburrak saihesteko.
- Erabili kableatu egokia elikadura, lurrerako eta bozgorailu konexioetarako, zehaztutako moduan.
- Muntatu ampGorde likidorea ondo aireztatutako leku batean, hezetasunetik eta gehiegizko berotik babestuta.
- Ez funtzionatu amplifier if it is damaged or malfunctioning. Refer to the troubleshooting section or contact support.
3. Produktua amaitu daview
The Zapco ST-4XP-SQ-III is a high-performance 4-channel Class AB amplifier designed for superior sound quality in automotive applications. Key features include:
- 4-Channel, Full Range, Class A/B operation
- Tiffany style Panel Mount RCA connectors
- Speaker Level Inputs with Auto-on functionality
- Sarrera aldakorraren irabazien kontrola
- Variable electronic crossover (HPF/LPF)
- Baxuen indartze aldakorra
- Robust new aluminum chassis for efficient heat dissipation
Kontrol panelaren diseinua

This image shows the input and control panel of the Zapco ST-4XP-SQ-III amplifier. Visible controls include gain adjustments, high-pass filter (HPF), low-pass filter (LPF), bass boost, and RCA input jacks for front and rear channels. Speaker level inputs and an auto-on switch are also present.
The control panel provides access to input connections and sound tuning adjustments. This includes RCA inputs, speaker level inputs, gain controls, and crossover frequency adjustments for both front and rear channels.
Power and Speaker Output Terminals

This image details the power and speaker output terminals of the Zapco ST-4XP-SQ-III amplifier. It includes connections for Ground (GND), Remote (REM), +12V Battery (Bat), and speaker outputs for front and rear channels, with bridging options indicated.
The power and speaker output panel features robust terminals for secure connections. These include connections for the main power supply (+12V Bat), ground (GND), remote turn-on (REM), and speaker outputs for the front and rear channels, with clear markings for bridging configurations.
4. Konfigurazioa eta instalazioa
Instalazio egokia ezinbestekoa da zure errendimendurako eta iraupen luzerako ampinstalatzailea. Urrats baten inguruan ziur ez bazaude, kontsultatu instalatzaile profesional bati.
4.1 Muntaketa
- Aukeratu muntatzeko leku lehor, ondo aireztatua eta eguzki-argitik edo bero-iturrietatik urrun dagoen bat.
- Ziurtatu nahikoa leku inguruan ampAirearen zirkulaziorako argitzailea.
- Ziurtatu amplifier firmly using appropriate hardware to prevent movement during vehicle operation.
4.2 Kableatutako konexioak
Refer to the 'Power and Speaker Output Terminals' image for visual guidance.
- Power (BAT +12V): Konektatu zuzenean ibilgailuaren bateriaren terminal positibotik +12V terminalera fusibledun kable bat. ampFusiblea bateriatik 18 cm-ra egon behar da.
- Lurra (GND): Connect a ground cable of the same gauge as the power cable to a clean, unpainted metal surface on the vehicle chassis. Ensure a solid electrical connection.
- Urruneko (REM): Konektatu urrutiko pizte-kable bat zure unitate nagusiaren urrutiko irteeratik REM terminalera. amplifier. This turns the amplifier on and off with your head unit. If using speaker level inputs, the amplifier features an auto-on function.
- Input seinalea:
- RCA sarrerak: Konektatu RCA kableak zure unitate nagusiaren aurre-konexiotik.amp outputs to the corresponding RCA input jacks (Front IN, Rear IN) on the ampbiziagoa.
- Bozgorailu-mailako sarrerak: If your head unit does not have RCA outputs, connect the speaker wires from the head unit to the amplifier's speaker level input terminals. Ensure correct polarity. The amplifier's auto-on feature will activate when a signal is detected.
- Bozgorailuaren irteerak: Konektatu zure bozgorailuak amplifier's speaker output terminals (Front L/R, Rear L/R). Observe correct polarity (+ to + and - to -). For bridged operation, refer to the markings on the amplifier for the correct terminals.
5. Funtzionamendu-argibideak
Behin instalatuta, egokitu ampSoinu-errendimendu optimoa lortzeko lifizer ezarpenak.
5.1 Irabazi-kontrola
The variable input gain control (MIN MAX GAIN) matches the ampIrabaziaren sarrera-sentsibilitatea unitate nagusiaren irteera-mailarekin bat dator. Hasi irabazia minimoan ezarrita. Erreproduzitu abesti ezagun bat unitate nagusiaren bolumen maximoaren % 75ean gutxi gorabehera. Handitu poliki-poliki amplifier's gain until you hear slight distortion, then back off slightly. This ensures maximum clean output.
5.2 Gurutzaketa ezarpenak
The ST-4XP-SQ-III features variable electronic crossovers for both High-Pass Filter (HPF) and Low-Pass Filter (LPF).
- HPF (Pasa handiko iragazkia): Maiztasunak onartzen ditu goian the set point to pass through. Use this for full-range speakers to prevent them from playing low bass, which can cause distortion and damage.
- LPF (Pase Baxuko Iragazkia): Maiztasunak onartzen ditu behean the set point to pass through. Use this for subwoofers to ensure they only reproduce bass frequencies.
- OSOA: Gurutzaketa saihestu egiten du, maiztasun guztiak igarotzea ahalbidetuz.
Adjust the HPF and LPF settings according to your speaker types and desired sound. Typical settings for full-range speakers might be an HPF between 80Hz-120Hz. For subwoofers, an LPF between 80Hz-100Hz is common.
5.3 Baxu-igoera
The variable bass boost control allows you to enhance low-frequency output. Use this feature sparingly, as excessive bass boost can lead to distortion and potential speaker damage. Adjust to taste, ensuring the sound remains clear.
5.4 Auto-on with Speaker Level Inputs
Bozgorailu-mailako sarrerak erabiltzean, amplifier can automatically detect an audio signal and power on. Ensure the 'AUTO TURN ON' switch is set to 'ON' if you wish to utilize this feature. If using a remote turn-on wire, set this switch to 'OFF'.
6. Mantentzea
The Zapco ST-4XP-SQ-III ampLifizer-ek mantentze-lan minimoa behar du epe luzeko errendimendua bermatzeko.
- Garbiketa: Aldian-aldian garbitu ampGarbitu kanpoaldea oihal leun eta lehor batekin hautsa eta zikinkeria kentzeko. Ez erabili produktu kimiko gogorrik edo garbitzaile urratzailerik.
- Ikuskapena: Aldian-aldian egiaztatu kableatu-konexio guztiak estua eta korrosio edo kalteen zantzurik dagoen. Ziurtatu ampLifter-aren muntaketa seguru mantentzen da.
- Aireztapena: Ziurtatu hori amplifier's heat sink fins are not obstructed, allowing for proper airflow and cooling.
7. Arazoak
Zurearekin arazoak badituzu amplaguntzaile gisa, kontsultatu hurrengo taula laguntzarekin harremanetan jarri aurretik.
| Arazoa | Kausa posiblea | Irtenbidea |
|---|---|---|
| Argirik ez / Amplifier ez da pizten |
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| Ez dago soinu-irteerarik |
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| Soinu distortsionatua |
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| AmpLifter gehiegi berotzea |
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8. Zehaztapenak
The following are the technical specifications for the Zapco ST-4XP-SQ-III ampbiziagoa:
- Potentzia @ 4Ω: 4 x 150 watt RMS
- Potentzia @ 2Ω: 4 x 250 watt RMS
- Potentzia zubitua @ 4Ω: 2 x 500 W RMS
- THD @ Potentzia nominala: % 0.1 THD
- Seinalea zarata erlazioa: > 95 dB
- Kanalen bereizketa: > 60 dB
- Maiztasun-erantzuna: 15Hz-tik 30KHz ±1dB
- Sarrerako sentikortasuna: 0.25v-tik 5v-ra
- Net Dimensions (W x H x L): 160 mm x 58 mm x 450 mm (6.3 x 2.28 x 17.72 hazbete)
- Overall Dimensions (W x H x L): 160 mm x 58 mm x 475 mm (6.3 x 2.28 x 18.7 hazbete)
- Elementuaren pisua: 10 kilo inguru
9. Bermea eta Laguntza
9.1 Bermearen informazioa
The Zapco ST-4XP-SQ-III amplifier bat dator 1 urteko bermea from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage caused by improper installation, accident, misuse, abuse, neglect, unauthorized modification, or normal wear and tear. Please retain your proof of purchase for warranty claims.
9.2 Bezeroarentzako laguntza
For technical assistance, warranty service, or general inquiries, please visit the official Zapco website or contact your authorized Zapco dealer. You can often find detailed FAQs, additional resources, and contact information on the manufacturer's webgunea.
Zapco Official Webgunea: Visit the Zapco Store on Amazon





