GZNA 1.2500DXII - Car radio Ground Zero - Free user manual and instructions
Find the device manual for free GZNA 1.2500DXII Ground Zero in PDF.
| Amplifier type | Class D mono for subwoofer |
| RMS output power (4 Ω) | 1250 W |
| Minimum load impedance | 1 Ω (normal mode), 2 Ω in bridge mode (2 amplifiers) |
| Low-pass filter | Adjustable from 30 to 250 Hz |
| Subsonic filter | Adjustable from 5 to 30 Hz |
| Phase | Adjustable 0-180° |
| Bass boost | 0 to +9 dB (30-60 Hz) |
| Input sensitivity | 200 mV to 9 V (via RCA) |
| Supply voltage | 12-16 V DC (max 16 V) |
| Recommended fuse | 200 A ANL (within 20 cm of the amplifier) |
| Damping factor | >180 at 100 Hz (4 Ω) |
| Dual regulated power supply | Yes |
| Master/Slave mode | Yes (for bridge mode) |
| Inputs | RCA (stereo), bass remote, Master/Slave link |
| Outputs | RCA (pass-through), speaker terminal (1 channel) |
| LED indicators | Blue (power), orange (protection/overheat) |
| Cooling | Passive (aluminum fins) |
| Dimensions (W x D x H) | Approx. 500 x 250 x 60 mm |
| Weight | Approx. 5 kg |
| Warranty | In accordance with legal rights (manufacturing defects) |
| Included accessories | Bass remote, user manual |
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Download the instructions for your Car radio in PDF format for free! Find your manual GZNA 1.2500DXII - Ground Zero and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. GZNA 1.2500DXII by Ground Zero.
USER MANUAL GZNA 1.2500DXII Ground Zero
Limited warranty - defective products must be returned in original packaging - please add a copy of the original purchasing invoice showing the purchasing date and a detailed description of the failure. Failure caused by overload, misuse or by using the product for competition purpose are not covered by the warranty.
www.ground-zero-audio.com
We reserve the right to make needed change or improvement to the product without informing customer about this in advance.
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Due to their state-of-the-art technology and high efficiency, these Class-D mono amplifiers help your system to provide an impressive sound experience.
The digital circuit technology of the power supply and the signal processing allows achieving maximum performance levels from the provided power. Due to the different fibers and circuits a very high power output is achieved, therefore these amplifiers are made for low frequency information (Subwoofer). They can not be used for high- and midrange speakers.
The link mode enables to use to full power of two amplifiers for one speaker. This is first of all advantageous for a really powerful and lively music playback.
Features
• Class-D Design for high efficiency
• Stabilized dual power supply
• Damping factor >180 at 100 Hz 4Ω
- 16 Volt max. Voltage supply
- Linkable with 1 amplifier
• 1 Ω stable (Linkmode 2Ω)
• Full Power MOS-FET amplifier
• Power and Protection Indicator
• Variable lowpass 30 – 250 Hz
• Variable subsonic 5 – 50 Hz
- 180^ variable Phase Shift
- Aluminum heat sink
- Adjustable input sensitivity 200mV \~ 9 Volt
• RCA Inputs & Outputs
• Bassremote Control
• 0 \~ +9dB Bassboost (30 - 80 Hz)
Tools and materials you need
- Screwdriver
• Electric drill, 3 mm / 0.12" carbide drill bit - Mounting screws
• Power wire min. 35 mm² / 2 AWG
• Ground wire min. 35 mm² / 2 AWG - Speaker wire min. 2 × 4 ~mm^3 / 11 AWG
Please note!
- As a precaution it is advisable to disconnect the vehicle's battery before making connection to the +12 Volts supply wiring (see owner's manual of your car for further information).
- Please use great caution drilling your trunk. Your gas tank and brake lines can be damaged by puncturing with your drill bit – this could cause damage or failure of your cars operating systems.
- Never pass wires over sharp angles. It is recommended to buffer the power supply of the amplifier with an additional battery (GZBP 12.2500 or GZBP 12.3500) to guarantee a stable operation voltage.
WARNING!
High powered audio systems in a vehicle are capable of generating "Live Concert" levels of sound pressure. Continued exposure to excessively high volume sound levels may cause hearing loss or damage. Also, operation of a motor vehicle while listening to audio equipment at high volume levels may impair your ability to hear external sounds such as: home, warning signals, or emergency vehicles, thus constituting to a potential traffic hazard. In the interest of safety, Consumer Electronics recommends listening at lower volume levels while driving.
Planning your system
Before beginning the installation, consider the following:
a. If you plan to expand your system by adding other components sometime in the future, ensure adequate space is left, and cooling requirements are met.
b. If your radio is equipped with preamplifier outputs (RCA), it is advisable to use them.
Mounting your amplifier
a. Select a suitable location that is convenient for mounting, is accessible for wiring and has ample room for air circulation and cooling.
b. Use the amplifier as a template to mark the mounting holes, remove the amplifier and drill 4 holes. Then mount the amplifier with the mounting screws.
Warning
Chose a mounting position where all eclectic wires are protected from being damaged by sharp edges, heat or other conditions. +12Volt DC electrical connections must be fused on the battery side. Make sure your radio and all other devices will be turned off while connection your system.
This amplifier has now internal fuse. Therefore it is absolutely necessary to connect the ANL-fuseholder (included in delivery) with its 200 A fuse. The cable length between amplifier and fuseholder must not be longer than max 20 cm / 7.9". Please see the connection diagram on the following side for correct wiring.
Power connection
Controls and functions
Controls and functions
| 1 Speaker terminals For connection of the subwoofer | ||
| 2 | Power terminals | GND -> Ground connection REM -> Remote antenna terminal BATT -> +12 Volt |
| 3 Satus Indication | BLUE - OK RED - Error | |
| 4 Cinch Inputs | Terminal for connection of the RCA wires. To avoid failure, please use high quality RCA wires. | |
| 5 Input level controlle r | With this controller you can adjust the input sensitivity. | |
| 6 Bass boost controlle r | For adjusting of the bass boost level in the range from 0 to +9 dB. | |
| 7 Bass frequency controller | For adjusting of the bass boost frequency in a range from 30Hz to 80Hz. | |
| 8 Subsonic controller | This controller allows you to filter low frequencies in a range between 5 and 50 Hz. This function reduces the mechanical Xmax and raises the capacity of the connected subwoofer. | |
| 9 | Cinch Outputs | For connection of additional amplifiers. |
| 10 Low pass controller | Adjust the variable lowpass frequency to the desired frequency between 30 and 250 Hz using the controller. | |
| 11 Phase shift controller | This controller allows you to fit the subwoofer channel in-phase to the front system. | |
| 12 | Remote control input | For connection of the bass remote control. |
| 13 | Slave In connection | For connection of the slave amplifier in link mode. See page 8 |
| 14 | Master Out connection | For connection of the master amplifier in link mode. See page 8 |
| 15 | Master / Slave Switch | For choosing the operation mode of each amplifier in link mode. See page 8 |
| 16 | Capacitor connection | For connection of a optional powercap. |
Turning on the amplifier
The amplifier automatically turns on a few seconds after you turn on your radio.
Note: Your amplifier temporarily shuts down if it gets too hot, then restarts automatically once it cools
(At about 80° / 176° F).
Adjusting the audio level
- LEVEL (Min/Max): Turn fully counter-clockwise to MIN position
- Turn the auto sound system's volume control to about two-third of its full range.
- Adjust LEVEL to a comfortable listening level.
Connecting the speaker
Master & Slave operation
8
Specifications
| Model GZNA 1.2500DXII | |
| RMS Power @ 4 ΩCEA Standard CEA-2006-A | 850W (1% THD+N)1100W (10% THD-N) |
| RMS Power @ 2 ΩCEA Standard CEA-2006-A | 1500W (3% THD+N)2000W (10% THD+N) |
| RMS Power @ 1 ΩCEA Standard CEA-2006-A | 2300W (1% THD+N)3000W (10% THD+N) |
| RMS Power @ 2Ω LinkmodeCEA Standard CEA-2006-A | 1 x 4600W (1% THD+N)1 x 6000W (10% THD+N) |
| Damping factor > 180 | |
| Signal to noise Ratio > 90 dB | |
| Lowpass 30 - 250 Hz (24 dB) | |
| Bandpass 5 Hz - 250 Hz (24 dB) | |
| Subsonic filter 5 Hz - 50 Hz (24 dB) | |
| Bass boost 0 ~ +5 dB | |
| Bass boost Frequency 30 Hz ~ 80 Hz | |
| Phase shift 0 - 180° | |
| Frequency response 5 Hz - 250 Hz | |
| Efficiency @ 4 Ω ~ 80 % | |
| Input sensitivity | 200 mV - 9 V(+ 5%) |
| THD < 0,50 % | |
| Bass remote | √ |
| Fuse | External ANL-fuse 200A(included in delivery) |
| DimensionsW x H x L inch | 305 x 62 x 450 |
| DimensionsW x H x L inch | 12 x 2,44 x 17.7" |
Trouble shooting guide
| Symptoms Check Points Cure | ||
| No sound | Is the POWER LED illuminated? | Check fuses in amplifier.Be sure remote lead is connected.Check signal leads.Check again control.Check tuner/deck volume level. |
| Is the diagnostic LED illuminated? | Check for speaker short or amplifier overheating | |
| Amp not switching on | No power to the amplifier | Check power wire or connections |
| No power to remote wire with receiver on | Check connections to radio | |
| No sound in one channel | Check speaker leads | Inspect for short circuit or an open connection |
| Check audio leads | Reverse left and right RCA inputs to determine if it is occurring before the amp | |
| Amp turning off at medium / high volume | Check speaker load impedance | Be sure proper speaker load Impedance recommendations are observed(If you use an ohm meter to check speaker resistance, please remember that DC resistance and AC Impedance may not be the same.) |
| Protection LED is on | Temperature shut down | Turn radio volume down |
| Speaker wires short | Separate speaker wires and insulate | |
Limited warranty - defective products must be returned in original packaging - please add a copy of the original purchasing invoice showing the purchasing date and a detailed description of the failure. Failure caused by overload, misuse or by using the product for competition purpose are not covered by the warranty.
www.ground-zero-audio.com
We reserve the right to make needed change or improvement to the product without informing customer about this in advance.
Operation Master & Slave
Données Techniques
| Model GZNA 1.2500DXII | |
| RMS Power @ 4 ΩCEA Standard CEA-2006-A | 650W (1% THD+N)1100W (10% THD+N) |
| RMS Power @ 2 ΩCEA Standard CEA-2006-A | 1500W (1% THD+N)2000W (10% THD+N) |
| RMS Power @ 1 ΩCEA Standard CEA-2006-A | 2300W (1% THD+N)3000W (10% THD+N) |
| RMS Power @ 2Ω LinkmodeCEA Standard CEA-2006-A | 1 x 4600W (1% THD-N)1 x 6000W (10% THD-N) |
| Damping facteur | > 180 |
| Signal to noise Ratio | > 90 dB |
| Filtre passe bas | 30 - 250 Hz (24 dB) |
| Bandpass | 5 Hz - 250 Hz (24 dB) |
| Filtre subsonic | 5 Hz - 50 Hz (24 dB) |
| Bass boost | 0 ~ +9 dB |
| Bass boost fréquence | 30 Hz ~ 80 Hz |
| Phase shift | 0 - 180° |
| Courbe de fréquence | 5 Hz - 250 kHz |
| Efficaciter @ 4 Ω | ~ 80 % |
| Sensibilité d'entrer | 200 mV - 9 V(+ 5%) |
| THD | < 0,50 % |
| Bass télécommande | √ |
| Fusible | La protection ANL Extercours 200 A(Dans la boite de livraisons) |
| Dimensionlargeur x hauteur x longueur mm | 305 x 62 x 450 |
| Dimensionlargeur x hauteur x longueur inch | 12 x 2.44 x 17.7" |
Limited warranty - defective products must be returned in original packaging - please add a copy of the original purchasing invoice showing the purchasing date and a detailed description of the failure. Failure caused by overload, misuse or by using the product for competition purpose are not covered by the warranty.
www.ground-zero-audio.com
We reserve the right to make needed change or improvement to the product without informing customer about this in advance.
Linkkauskytkentä
Tekniset tiedot
| Mall GZNA 1.2500DXII | |
| RMS Teho ♂ 4 ΩCEA Standard CEA-2006-A | 650W (1% THD+N)1100W (10% THD+N) |
| RMS Teho ♂ 2 ΩCEA Standard CEA-2006-A | 1500W (1% THD+N)2000W (30% THD+N) |
| RMS Teho ♂ 1 ΩCEA Standard CEA-2006-A | 2300W (1% THD+N)3000W (30% THD+N) |
| RMS Teho ♂ 2Ω LinkattunaCEA Standard CEA-2006-A | 1 x 4600W (1% THD+N)1 x 6000W (18% THD+N) |
| Vainmeinuskerroin | > |
| Hairnetaaiyyss > 90 dB | |
| Allpäistösuodin 30 – 250 Hz (24 dB) | |
| Kraistanpaärsti 5 Hz – 250 Hz (24 dB) | |
| Subsonic suodin 5 Hz – 50 Hz (24 dB) | |
| Bassonkorostus 0 ~ +9 dB | |
| Bassonkorostuksen kcskitaajuus 30 Hz ~ 80 Hz | |
| Valheenkääntö 0 – 180° | |
| Taejuuswaste 5 Hz – 250 Hz | |
| Hydtysubde ♂ 4 Ω ~ 80 % | |
| Sisopantulotaso | 200 mV – 9 V(+ 5%) |
| THD < 0,50 % | |
| Bassonkatukossädin | √ |
| Sulake | Ulkoinen ANL-sulake 200A(Mukano) |
| MitatW x H x L mm | 305 x 62 x 450 |
| MitatW x H x L inch | 12 x 2,44 x 17,7" |
Limited warranty - defective products must be returned in original packaging - please add a copy of the original purchasing invoice showing the purchasing date and a detailed description of the failure. Failure caused by overload, misuse or by using the product for competition purpose are not covered by the warranty.
www.ground-zero-audio.com
We reserve the right to make needed change or improvement to the product without informing customer about this in advance.
Brand : Ground Zero
Model : GZNA 1.2500DXII
Category : Car radio