Helix E 52C.2 - Speaker Audiotec Fischer - Free user manual and instructions

Product Type	2-Way Coaxial Car Speaker
Brand	Audiotec Fischer
Model	Helix E 52C.2
Speaker Size	5.25 inches (13 cm)
Impedance	4 ohms
Power Handling (RMS)	60 Watts
Peak Power	120 Watts
Sensitivity	90 dB (1W/1m)
Frequency Response	55 Hz - 25 kHz
Tweeter Type	1-inch Soft Dome Tweeter
Mounting Depth	50 mm
Cutout Diameter	120 mm
Weight	1.1 kg per pair
Operation	Passive, no external power supply required
Main Functions	Reproduce audio with integrated crossover
Maintenance	Clean with a dry cloth; avoid moisture
Safety	Install by a professional; ensure secure mounting
Spare Parts	Grilles, mounting hardware, wiring harness
Repairability	Limited; replace damaged speaker
General Information	High-quality car audio speaker for OEM upgrade

Frequently Asked Questions - Helix E 52C.2 Audiotec Fischer

What are the dimensions of the Helix E 52C.2 speaker?

The speaker has a diameter of 5.25 inches (13 cm) with a mounting depth of 50 mm and a cutout diameter of 120 mm.

What is the power handling of this speaker?

It handles 60 Watts RMS and 120 Watts peak power.

How do I install the Helix E 52C.2 in my car?

Installation requires removing the old speaker, connecting the wiring (positive and negative), and securing the new speaker with screws. A professional installation is recommended.

What is the impedance of the Helix E 52C.2?

The impedance is 4 ohms, compatible with most car audio head units and amplifiers.

Does this speaker come with mounting hardware?

Yes, it includes grilles, mounting brackets, and screws for installation.

Can I use the Helix E 52C.2 with a factory radio?

Yes, it can be used with factory radios, but for optimal performance, pairing with an external amplifier is recommended.

What type of tweeter does the Helix E 52C.2 have?

It features a 1-inch soft dome tweeter for smooth high-frequency reproduction.

What is the frequency response of this speaker?

The frequency response ranges from 55 Hz to 25 kHz, covering bass to treble.

Is the Helix E 52C.2 waterproof?

No, it is not waterproof. Keep it away from moisture and clean only with a dry cloth.

Where can I download the manual for the Helix E 52C.2?

The manual is available for free download on the notice-facile.com website in PDF format.

USER MANUAL Helix E 52C.2 Audiotec Fischer

Exterior view of a black HELIX F-82C-2 speaker with visible sound waves and speaker components (no text or symbols on main body)

Exterior view of a black speaker with two circular plates and a small electronic device (no text or symbols visible)

E 62C.2 / E 52C.2 / E 42C.2

E 6X.2 / E 5X.2 / E 4X.2

Component- and coaxial speaker systems

E 4X.2E 42C.2 / E 4B.2

E 5X.2E 52C.2 / E 5B.2

E 6X.2E 62C.2 / E 6B.2

E 1T

Einbau Tieftöner

Diagram of a laboratory filtration setup with funnel, test tubes, and sample collection (no text or labels)

versenkter Einbau

Diagram of a laboratory filtration setup with funnel, condenser, and evaporator (no text or labels)

Diagram of a mechanical assembly showing a component being inserted into a housing with screw fasteners (no text or labels)

Congratulations on your purchase of this high-quality HELIX speaker system.

This system highlights best quality, excellent manufacturing and state-of-the-art technology.

After 30 years of experiences in research & development of audio products this speaker system generation sets new standards.

We wish you many hours of enjoyment with your new HELIX speakers.

Yours

AUDIOTEC FISCHER Team

General instructions

General instructions for installing a HELIX speaker system

To prevent damage to the speakers and possible injury, read this manual carefully and follow all installation instructions. This product has been checked for proper function prior to shipping and is guaranteed against manufacturing defects.

For a proper performance and to ensure full warranty coverage, we strongly recommend to get this product installed by an authorized HELIX dealer. If you choose to perform your own installation read the following information and precautions carefully. Failure to follow the stated precautions may result in personal injury and/or damage to the audio system or vehicle.

1. Always make sure that the speaker will fit into the intended mounting location and that there is adequate depth for the magnet system.

2. Check for adequate space between speaker and window, window crank, power window mechanism, seat, rear deck torsion bars, and other items which may interfere with the speaker's mounting. This is very important if any hole cutting is required. Detailed size information is indicated in the dimension section of this manual. Take care that the mounting surface is flat and free from all obstructions.

3. Do not mount the speakers where water may splash on them.

4. The quality of the installation has a significant effect on the overall performance of the speaker system. Treat each installation step with a high degree of attention.

5. Avoid low frequency cancellation caused by air leakage between the speaker basket and the mounting surface (e.g. mounted on a bended or uneven surface or mounted in an oversized hole).

6. Mounting panel reinforcement may be necessary in some cases in order to ensure a stable, torsion-free and even surface. This can be achieved by mounting the speaker on a metal or wooden sub-baffle behind the body or door panel. Consult an installation specialist for further advices.

7. In most cases you can use the original speaker mounting locations at the doors, body panels or the rear deck. If these are not available you have to prepare your own secure installation place. Due to their structural integrity and accessibility the precut mounting holes should be used whenever possible.

Important:

Never cut any metal that is an integral part of an automobile's safety or structural car body.

General instructions for connecting HELIX speaker systems

We strongly recommend that you operate the complete audio system at low volume before final installation. This will allow a trial listening test before securing the loudspeakers into their mounting locations.

Make sure that all speaker wiring is fully protected from cutting or wear at sharp edges. This can lead into a short circuit which might damage your head unit, amplifier and/or speaker system.

Make sure that all speaker wires have sufficient length in order to reach the speaker terminals without stress on the wire or connectors.

General instructions for mounting HELIX speaker systems

Once you have tested the complete speaker system and have confirmed correct operation, turn off the audio system and prepare the loudspeaker for final mounting.

1. Place the loudspeaker in the mounting position as shown in the illustration "Mounting the woofer".
2. Fix the speaker with its mounting ring in its installation place and check if all screws are in the right position to the fixing holes. Use the included screw clips to secure the screws. Tighten all screws evenly.
3. Attach the mesh to the mounting ring.

Features

Component systems

• Woofer with very stiff and non-resonating woofer cones made from woven fiberglass
• Specially shaped rubber surround for larger effective cone area and increased maximum excursion
• 1 inch / 25 mm silk dome tweeter with neodymium magnet for brilliant and smooth treble response
• Tweeters are 25^ tiltable for perfect alignment with listening position
• Individual HELIX design basket with additional ventilation holes for better voice coil cooling and high power handling
• Complex, separate crossover with 6/12 dB slope, bandstop filter, tweeter protection and adjustable tweeter level
• Grille included

Coaxial systems

• Woofer with very stiff and non-resonating cones made from woven fiberglass
• Specially shaped rubber surround for larger effective cone area and increased maximum excursion
• 0.75 inch / 19 mm silk dome tweeter with neodymium magnet for brilliant and smooth treble response
• Tweeters are 360^ pivotable and 25^ tiltable for perfect alignment with listening position (E 5X.2 / E 6X.2)
• Individual HELIX design basket with additional ventilation holes for better voice coil cooling and high power handling
• Separate inline crossover with integrated tweeter protection
• Grille included

E 4X.2E 42C.2 / E 4B.2

E 5X.2E 52C.2 / E 5B.2

E 6X.2E 62C.2 / E 6B.2

E 1T

Mounting the woofer

Mounting the tweeter

Surface mount Flush mount

Diagram of a funnel assembly with a lid, internal components, and screw base (no text or labels)

Diagram of a gasifier or reactor with cooling tower and heat exchanger (no text or labels)

Angle mount

Diagram of a mechanical assembly showing a component being inserted into a housing, with no visible text or symbols.

Connecting the crossover

Component systems:

	E 62C.2 E 52C.2 E 42C.2
Power handling RMS / Max. 75 / 220 Watts 60 / 180 Watts 50 / 150 Watts
Frequency range 50 Hz - 25,000 Hz 60 Hz - 25,000 Hz 75 Hz - 25,000 Hz
Sensitivity 91 dB 1W / 1m 90 dB 1W / 1m 89 dB 1W / 1m
Impedance 4 Ohms 4 Ohms 4 Ohms
Diameter W / T 165 mm / 25 mm; 6.50" / 1"	130 mm / 25 mm; 5.25" / 1"	100 mm / 25 mm; 4" / 1"
Installation depth W / T	65 mm / 17.5 mm; 2.56" / 0.70"	54 mm / 17.5 mm; 2.05" / 0.70"	48 mm / 17.5 mm; 1.89" / 0.70"
Crossover	Separate, 6/12 dB slope, bandstop filter, tweeter protection and adjustable tweeter level	Separate, 6/12 dB slope, bandstop filter, tweeter protection and adjustable tweeter level	Separate, 6/12 dB slope, bandstop filter, tweeter protection and adjustable tweeter level

Coaxial systems:

	E 6X.2	E 5X.2	E 4X.2
Power handling RMS / Max. 60 / 180 Watts 50 / 150 Watts 40 / 120 Watts
Frequency range 55 Hz - 22,000 Hz 65 Hz - 22,000 Hz 80 Hz - 22,000 Hz
Sensitivity 91 dB 1W / 1m 90 dB 1W / 1m 89 dB 1W / 1m
Impedance 4 Ohms 4 Ohms 4 Ohms
Diameter	165 mm; 6.50”	130 mm; 5.25”	100 mm; 4”
Installation depth	65 mm; 2.56”	54 mm; 2.13”	48 mm; 1.89”
Crossover	Separate inline cross-over with 6 dB slope and integrated tweeter protection	Separate inline cross-over with 6 dB slope and integrated tweeter protection	Separate inline cross-over with 6 dB slope and integrated tweeter protection

Warranty Disclaimer

The limited warranty comply with legal regulations. Failures or damages caused by overload or improper use are not covered by the warranty.

Please return the defective product only with a valid proof of purchase and a detailed malfunction description.

Technical specifications are subject to change!

Errors are reserved!

For damages on the vehicle and the speaker caused by handling errors of the speaker system we can't assume liability.

AUDIOTEC

FISCHER