EMA 460 - Hi-Fi System BLAUPUNKT - Gratis brugsanvisning og manual

BRUGSANVISNING EMA 460 BLAUPUNKT

BLAUPUNKT

EMA 460

4/3/2 Channel Power Amplifier

Exterior view of a black BAUPUNKT audio amplifier (no visible text or symbols on body)

Enjoy it

System Planning

Proper system planning is the best way to maximize your amplifier performance. By planning your installation carefully you can avoid situations where the performance of the reliability of your system is compromised. Your authorized dealer has been trained to maximize your system's sonic potential. Your dealer is a valuable resource in helping you with your system design and installation.

Speaker Requirements

Each channel of your amplifier can easily drive 4Q speaker loads when used ion the stereo mode. When a channel-pair is bridged, the recommended minimum load impedance is 3Ω for subwoofer use, and 4Ω for full range operation. Although operation with lower impedances is not likely to cause immediate damage to the internal circuitry, the unit will most likely overheat, causing the thermal protection circuitry to shut down the amplifier. When the chassis cools down, normal operation will resume. Continuing to operate the amplifier under these conditions is not recommended and will reduce its life expectancy.

Most speakers designed for car audio operation are 4Ω impedance. Connecting two such speakers in parallel will result in a 2Ω nominal impedance, which is not recommended for use with bridged channels of your amplifier.

Symptom

Distorted output (cont'd)

Poor bass response

Battery fuse blowing

Amplifier fuse blowing

Possible Cause

Speakers are blown

Speakers wired wrong polarity causing cancellation at low frequencies

Crossover set incorrectly

Impedance load to amplifier too low

Short in power wire or incorrect power connections

Fuse used is smaller than recommended

Too much current being drawn

Short in power wire or incorrect

Fuse used is smaller than recommended

Action to take

Check system with known working speaker and repair or replace as needed

Check speaker polarity and repair as needed

Reset crossover referring to the multi-cross crossover configuration section of this manual for detailed instructions

Check speaker impedance load, if below 2 stereo or 4 mono rewire speakers to achieve a higher impedance

Check power and ground connections and repair as needed

Replace with proper fuse size

Check speaker impedance load, it below 2Ω stereo or 4Ω mono rewire speaker to achieve a higher impedance and replace with recommended fuse size

Check power and ground connections and repair as needed

Check speaker impedance load. It below 2 stereo or 4 mono rewire speakers to achieve a higher impedance and replace with recommended fuse size

Check power and ground connections and repair as needed Replace with proper fuse size

Trouble Shooting Power Connection Leads

SymptomNo output	Possible CauseLow or no remote turn-on input	Action to TakeCheck remote turn-on voltage output at amplifier and correct as needed
	Fuse down	Check power wire integrity and reversed polarity, repair as needed and replace fuse
	Power wires not connected	Check power wire and ground connections and repair of replace as needed
	Audio input not connected or no output from source	Check input connections and signal integrity, repair or replace as needed
	Speaker wires not connected	Check speaker wires and repair or replace as needed
Audio cycles on and off	Speaker are blown	Check system with known working speaker and repair or replace speakers as needed
	Thermal protection engages when amplifier heatsink temperature exceeds 90 °C	Make sure there is proper ventilation for amplifier and improve ventilation as needed
	Loose or poor audio input	Check input connections and repair or replace as needed
Distorted output	Amplifier level sensitivity set too high; exceeding maximum output capability of amplifier	Reset gain referring to the turning section of the manual for detailed instructions
	Impedance load to amplifier too low	Check speaker impedance load if below 2Ω stereo or 4Ω mono rewire speakers to achieve a higher impedance
	Shorted speaker wires	Check speaker wire connections and repair or replace as needed
	Speaker not connected to amplifier properly	Check speaker wiring and repair or replace as needed refer to the installation section of this manual for detailed instructions

Notes on the power supply

Connect the +12V power input lead only after all other leads have been connected. Be sure to connect the ground wire of the unit securely to a metal part of the car. A lose connection may cause a malfunction of the amplifier.

REMOTE: The unit is turned on by applying +12Volts to this terminal. This terminal does not draw heavy current like the two power terminal so a thinner connecting wire is acceptable. Standard 18 GUAGE is fine and the standard color is yellow. If the power antenna wire is already in use, you can still splice into it. With this method, the unit will turn on automatically with the radio. Use the power supply lead with a fuse attached whose value is the same as original fuse.

Place the fuse in the power supply lead as close as possible to the car battery.

During a full power operation. Maximum current will run through the system. Therefore, Make sure that the leads to be connected to the +12V and GND terminals of the unit respectively must be larger than 10-Guage (AWG 10)

System 1 4 channel mode

· 3 ·

System 2 bridged connection subwoofer

Specifications

EMA 460

RMS output power 4Ω (Watts)	60W x 4 CH
RMS output power 2Ω (Watts)	90W x 4CH
RMS bridged output power 4Ω (Watts)	180W x 2 CH
THD	<0.05%
Frequency response (±2db)	10Hz ~30KHz
Signal to noise ratio	>96dB
Sensitivity	200mV~6V
Recommended fuse type	30A x 1
Dimensions	300mm x 200mm x 51.5mm