Helix K 10S - 25cm Flat

199,00€
199,00€

incl. VAT.

Articel available
Availability: In Stock
Product Type: Subwoofer
Packaging Unit: Individually
impedance: D2 - Dual 2 Ohm
Subtotal: 199,00€
31 Dec. Estimated arrival
28 Dec. Order placed
29-30 Dec. Order dispatches
31 Dec. Delivered!
10 customers are viewing this product

Free shipping from 49€

5% discount for prepayment

Wiring assistant

Helix K 10S - 25cm Flat

Helix K 10S - 25cm Flat

199,00€

Helix K 10S - 25cm Flat

199,00€
Packaging Unit: Individually
impedance: D2 - Dual 2 Ohm

HELIX K 10S

 Flat design - rich deep bass

The K 10S is the problem solver par excellence when it comes to the realization of particularly flat and compact housing designs. The extremely low installation depth of this woofer opens up completely new installation options without having to make any acoustic compromises.

Thanks to its large double voice coil and low resonant frequency, the K 10S does not need to hide behind woofers with greater installation depths when it comes to bass performance.

Clever bis ins Detail

The extremely torsion-resistant sandwich paper cone in conjunction with the heavy-duty double voice coil not only converts amplifier power casually and without compression effects into powerful sound pressure, but also scores points in terms of sound with subtle beats.

A special highlight: the magnet system has a threaded hole on the back and thus enables the woofer to be screwed to the rear wall of the housing. In this way, housing vibrations can be effectively reduced even with thin walls, because with flat constructions every millimeter of depth sometimes counts.

Flexible connection

The design as a double voice coil woofer brings with it a lot of flexibility in terms of the choice of amplifier. Whether 1 x 4 ohms, 2 x 2 ohms or 1 x 1 ohm impedance - every configuration is possible with this deep bass specialist.

"All inclusive" for the do-it-yourselfer

In addition to the high-quality housing connection terminal with gold-plated screw connections, a solid protective grille and a cover ring are also included in the scope of delivery.

For optimal bass performance with DIY installations, our technical data sheet contains recommendations for closed and bass reflex cabinets with all parameters such as net volume, tunnel tuning frequency or DSP settings.


Features

✓ Chassis with particularly low installation depth - optimized for compact and very flat housing constructions

2 x 2 Ohm dual voice coil for flexible system configurations

Magnet system with rear threaded hole - allows screwing to the rear panel of the housing for stabilization and reduction of housing vibrations

Robust magnet cover with HELIX lettering to protect the magnet

Extremely torsion-resistant sandwich paper cone

Long-stroke rubber surround for maximum mechanical resilience

Housing connection terminal, grille and cover ring included

 

Technical specifications

 

Power RMS / Max. P 300 / 600 Watt
impedance WITH 2 x 2 Ohms
DC resistance  Re 2 x 1.6 Ohms
resonant frequency  Fs 34 Hz
mechanical goodness Qms 6,37
electrical goodness  Qes 0,49
overall quality  Qts 0,45
indulgence Cms 198 μm/N
equivalent volume  Your 34 L
Power factor  B*I 12,7 Tm
efficiency
1 W / 1 m
SPL 87,0 dB
membrane area  Sd 353 cm²
moving mass  Mms 112 g
Membranmaterial   Sandwich Paper Membrane
mechanical resistance  Rms 3,73 kg/s
voice coil diameter ø 50,8 mm
voice coil winding width   19 mm
Max. linearer Membranhub Xmax +/- 6,0 mm
outer diameter ø 262 mm
installation diameter ø 229 mm
installation depth   84,5 mm
     
Recommended case volumes    
closed housing    
Net volume   14 L
Lower cutoff frequency (-3dB)   46 Hz
Recommended DSP settings   Recommended "Self-Define" high-pass filter with 45 Hz cut-off frequency and Q = 1.3;
additional EQ filter 100 Hz / Q = 1.0 / -3 dB
     
Bass reflex enclosure    
Net volume   16 L
Reflex channel diameter ø 70 mm
Reflex channel surface   38 cm²
Reflex Channel length   38 cm
Tunnel tuning frequency Fb 37 Hz
Lower cutoff frequency (-3dB)   39 Hz
Recommended DSP settings   Recommended "Self-Define" high-pass filter with 37 Hz cut-off frequency and Q = 1.2;
additional EQ filter 95 Hz / Q = 0.7 / -3 dB


scope of delivery

1 x Subwoofer Helix K 10S

1 x grid

1 x connection terminal

1 * cover ring

1 x data sheet


🗒Data sheet
☞(Download)


Shipping countries:
Germany
Austria
✓ France


Shipping

✓ Free shipping from 49€ within Germany

✓ Delivery times vary depending on the product and can be found on the product page, usually 1 - 3 working days for stock items, international shipping times vary, usually 6 - 10 working days.

✓ In most cases, shipping is carried out by DHL.

✓ Depending on the product and location, items can also be shipped with other providers.

✓ Tracking will be sent by e-mail after the shipment has been processed.

Normal shipping route

✓ 1 - 31,5Kg = DHL

✓ 31,6 - 40Kg = GLS

✓ 40.1 - maximum kg = forwarding agency

✓ Bulky goods = freight forwarder

✓ Customs shipments = DHL or forwarding agency

Collection

✓ Collection takes place regularly, orders received by 3 p.m. are usually disposed of on the same day for stock goods and transported directly to the parcel center.

Further information

✓ T-shirts and hoodies are made to order and have separate delivery times

✓ Forwarding goods can be picked up the following day at the earliest

Trust is good, control is better - use our social media channels and find out about our work: whether it's installations, tuning meetings, competitions, product presentations, explanations or direct support. We offer you a comprehensive design:

Instagram:
Regular posts and stories
Youtube:
Regular videos about car hi-fi.
Facebook
Regular information about new products and much more.
TikTok:
Short and crisp videos

Wiring wizard

Use our wiring wizard for simple wiring of speakers and subwoofers or to find the optimal setup for your cabinet! The right connection is important for your amplifier! Low impedance operation can damage the amplifier!

✓ Series connection: The impedance increases in number

✓ Parallel connection: The impedance decreases in the number

The data sheet shows you which connection the respective amplifier is designed for!

Port calculator

Our port calculator shows you which tuning your housing has! The net volume is always particularly important here; calculate the pure chamber of the subwoofer beforehand to arrive at the correct result. The net volume is calculated minus all displacements and is important when designing the enclosure.

The net volume design for your woofer size in music mode can look like this

Bass reflex:

✓ 6.5" (16.5cm) = 10 - 15 liters

✓ 8" (20cm) = 20 - 30 liters

✓ 10" (25cm) = 40 - 50 liters

✓ 12" (30cm) = 60 - 80 liters

✓ 15" (38cm) = 100 - 125 liters

✓ 18" (46cm) = 180 - 240 liters

✓ 21" (54cm) = 230 - 290 liters

Manufacturer Information

Name: Helix

Address: Hünegräben 26-28 D-57392 Schmallenberg

Email: contact@audiotec-fischer.com

Website: https://www.audiotec-fischer.de/

European Manufacturer: Yes

Customer Reviews

Based on 1 review
100%
(1)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
D
Denis
Helix Flat Sub

Perfekter woofer wenn so gut wie kein Platz vorhanden ist. Wie gewohnt top Verarbeitung. Lieferung wie immer sehr schnell!

Related products

Experience car hi-fi live

Daily posts, stories, news, offers, events,
live support and much more. Follow us on our social media channels and
to find your perfect sound.

All channels

Shipping

You will receive the tracking number to track the delivery after the order has been processed, usually the evening after the shipment has been collected and will be sent to you by email.

Nationally, we charge shipping costs of 4.90€ up to an order value of 49€, once this amount is reached, shipping is free of charge. Internationally, the costs are different and can be viewed in the checkout for the respective country.

Depending on the receipt of the order, the goods can be shipped promptly and are usually delivered within 1 - 3 days, the exact delivery period can be found on the product page.

You can collect your order from our store in 91224 Pommelsbrunn, Amberger Str. 17, which is located directly on the main street. After confirming your order and selecting collection, you will be informed when your order is ready for collection.

Please contact us with your order or shipment number and we will complain about the transit time of your shipment

✓ 1 - 31,5Kg = DHL

✓ 31,6 - 40Kg = GLS

✓ 40.1 - maximum kg = freight forwarder

✓ Bulky goods = freight forwarder

✓ Dutiable shipments = DHL or freight forwarder

For stock items, orders must be received by approx. 4 pm, are usually disposed of on the same day and transported directly to the parcel center, the delivery times can be found adapted for each item on the product page.

Products

We use several indicators for sufficient transparency in the store. All products are marked several times with the corresponding availability and delivery time. The availability indicator shows a rough overview of the stock quantity; if there is excess stock, the indicator is automatically hidden.

Items that are not available cannot be ordered.
To avoid unnecessary waiting times, we have set up an e-mail notification function for you. As soon as the goods arrive, you will automatically receive a notification of availability after entering your e-mail.

Manufacturers who provide data sheets or operating instructions can be found at the end of the item description for download.

Unfortunately, it is difficult to give a general answer, as all woofers and speakers are constructed differently and have different coils, plus the amplifier, which must be designed for the connection impedance. You can simply use our wiring assistant, enter the number of speakers, resistance and wiring variant and have it calculated. If the amplifier can handle the connection impedance, nothing stands in the way of the wiring.

Amplifiers which have a release up to e.g. 1 Ohm can also be connected with 2,3,4 and higher impedance.

Our port calculator shows you which tuning your enclosure has! The net volume is always particularly important here. Calculate the pure recorded chamber of the subwoofer beforehand to arrive at the correct result. The net volume is calculated minus all displacements and is important when designing the enclosure.

The net volume design for your woofer size in music mode can look like this

Bass reflex:

✓ 6.5" (16.5cm) = 10 - 15 liters

✓ 8" (20cm) = 20 - 30 liters

✓ 10" (25cm) = 40 - 50 liters

✓ 12" (30cm) = 60 - 80 liters

✓ 15" (38cm) = 100 - 125 liters

✓ 18" (46cm) = 180 - 240 liters

✓ 21" (54cm) = 230 - 290 liters

If you prefer to listen to charts, rock, pop or e.g. techno, the tuning should be a little higher and is usually in the range of 40Hz and higher. The range of RnB or Ami HipHop usually plays in the 30 to 40Hz range.

In short, clipping is an "unclean signal". You can usually recognize clipping in woofers when there is an electrical smell, the woofer stinks and becomes hot. With loudspeakers, it can also be noticeable through unclean reproduction. The fun is over when the coil has unwound from the carrier. Many amplifiers now have a clipping LED integrated in the output stage or in the bass control; if the LED lights up, you should definitely turn down the volume. If the amplifier does not have an LED, the only way to position the gain correctly is to use an oscilloscope or other aids. However, this requires a certain amount of basic knowledge in order to set the amplifier correctly.

We almost exclusively offer products and manufacturers that we use ourselves and install regularly, true to the motto "quality not quantity", so we can usually tell you what to expect. All products are sensibly designed and selected to cover a wide range, for reasonable sound optimization and, above all, to achieve the desired goal. If you have any questions about your setup or plans, please contact us!

General information

All payment methods are displayed for the respective country in the checkout, for Germany usually
- Bank transfer
- PayPal
- AmazonPay
- Klarna
- VISA
- GooglePay
- ApplePay
- Sofortüberweisung

Payment by installments is possible with PayPal and Klarna, simply select the desired provider, view offers and check out. The rest of the ordering process is then fully automated.

The business premises are located in 91244 Pommelsbrunn, Amberger Str. 17, directly on the main street.

When picking up the goods, payment can be made on site by cash, Paypal or real-time bank transfer.

The best way to reach us is by email at info@mtaudio.eu,
via Whatsapp or by phone on +49 160 7603014.

The invoice can be downloaded via the attached link in the order confirmation email.

The company was founded in April 2015 and has been active ever since.

With a car hi-fi team of almost 40 people, we are regularly represented across Germany and internationally at various events/competitions, and we share most of our journeys via Instagram stories.

Warranty

All items come with a 2-year warranty

The best way to contact us is by e-mail so that we can send you the appropriate service forms and, if necessary, labels for shipping directly, depending on the product and damage pattern. The item will be checked upon receipt and the damage pattern determined. After checking the damage, we can determine the cause and act accordingly.

The processing time depends on the product and defect, usually a few days for amplifiers and 1 to 2 weeks for loudspeakers. If it is a material defect and the repair is not foreseeable, the item will be replaced.