SKU: 26467484944

Helix AAC.3 HIGH to LOW Converter

Sale price$67.49 Regular price$74.99
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Ships within 48 hours · Estimated delivery Sep 22 - Sep 27

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Description

Helix AAC.3 HIGH to LOW ConverterThe integration of car hifi components into existing OEM sound systems becomes more and more challenging as today's factory radios either lack of preamplifier outputs or incorporate intelligent speaker diagnosis features. That's where the new Helix AAC. 3 comes into play. The smartest high low converter in its class Forget about error messages or loss of features (e. g. the fader) the integrated ADEP. 3 circuit cleverly "bypasses" the speaker

The integration of car hifi components into existing OEM sound systems becomes more and more challenging as today's factory radios either lack of preamplifier outputs or incorporate intelligent speaker diagnosis features. That's where the new Helix AAC.3 comes into play.

The smartest high-low converter in its class
Forget about error messages or loss of features (e.g. the fader) - the integrated ADEP.3 circuit cleverly "bypasses" the speaker diagnosis in factory car radios. Distorted sounds and increased THD which may occur with conventional high-low converters are prevented as well. The good thing is that the ADEP.3 doesn't load the car radio's amp unnecessarily and therefore reduces its current draw by up to 70 %.

Smart signal detection
Its “Double Activation Circuit” generates a +12 V remote signal for turning on connected power amplifiers in two different manners. Either it detects the DC offset on the speaker outputs of the OE car radio or it utilizes an integrated, switchable signal detection with variable sensitivity.
Furthermore the AAC.3 incorporates Audiotec Fischers proprietary "Power Save Mode", which turns off the remote output if no music signal is present for more than 2 minutes. That's really a great advantage as many cars with "CAN" or similar bus architectures keep the radio invisibly "alive" for up to 45 min. even if you have already left the car meanwhile.

High Resolution-ready
The AAC.3 generates a high-quality preamplifier signal out of the speaker output signal of a factory radio or amplifier and thus allows the easy connection of additional power amplifiers. Its wide frequency response of 18 Hz up to 80,000 Hz warrants excellent sound quality and makes this high-low converter ready for High-Res audio reproduction.

  • Allows a simple connection of additional amplifiers to your factory sound system
  • Suitable for all car radios – even those with factory-installed amps
  • “ADEP.3 circuit” for bypassing radio diagnostic systems
  • Microcontroller-controlled monitoring of the music signal and generation of the remote signal
  • “Power Save Mode” – significantly reduces the power consumption of connected amplifiers when no input signal is present (after 2 min.)
  • “Double Activation Circuit” – generates a +12 V remote signal in two different ways to turn on connected amplifiers
  • Excellent sound quality thanks to very wide frequency response (18 Hz - 80 kHz)
  • High-quality, sealed and gold plated RCA / Cinch connectors for lossless signal transmission
Max. speaker input level 16 Volts (= 65 Watts / 4 Ohms)
Input impedance 13 Ohms
Max. output level 4.0 Volts
Frequency response 18 Hz - 80,000 Hz
Max. current for remote output 200 mA
Operating voltage 7 - 18 Volts
Dimensions (H x W x D) 77 x 37 x 20 mm /
3.03 x 1.46 x 0.79"
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 26467484944

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4.1 ★★★★★
Based on 11 reviews
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B
Verified Purchase
beth
Boise, US
★★★★★ 5
Useful but not perfect
Color: silver
Useful, but typing with laptop perched on it is unsteady. I use a separate keyboard.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 2, 2026
V
Verified Purchase
vics
Houston, US
★★★★★ 5
Why are people trying to type on a laptop stand?
Color: silver
So the overwhelmingly negative reviews you'll notice for this product specifically surround the "bounciness" of this stand when someone is typing on it—however what is confusing to me is how people are purchasing a laptop stand in theory to optimize their ergonomics, yet also stretching their arms out and elevating them to type on said laptop once it's raised. the point of a laptop riser/stand is to elevate the screen so that you can maintain a more natural posture. One would assume you have an external keyboard to use in conjunction with your laptop once you place it on a RISER, because the idea is to elevate your laptop as a SCREEN and then have a level/flat surface to type on, thereby alleviating any awkward hunching or neck strain looking down or anywhere not naturally eye-level. as it is, it's a perfectly functional and elegant laptop riser. I don't find myself wanting to adjust the height often if ever, but in the one or two instances I experimented with it, found no mechanical issues. It looks nice with Apple hardware and allows me to have my laptop's screen flush with the bottom edge of my additional external monitor, so it serves my purposes well. for people complaining about how it bounces when they type on it ... STOP typing on your laptop's keyboard when you have it elevated on a riser! this defeats the purpose and probably also makes your arms tired—buy an external keyboard!
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Reviewed in the United States on December 2, 2020
J
Verified Purchase
Jack Leitner
Louisville, US
★★★★★ 5
Nice Valet tray with Qi standard charger USB-C
Color: Best Dad-brown
I like this valet tray. I'm not fond of the message in the main compartment of the valet tray. It means they expect someone to buy it for their dad. I bought it for myself. What I like is the Qi standard compatibility of the wireless charger. It has many advantages over the wireless chargers that are sold. Most are round circles, so your phone teeters on the odd design. Some want to attach to my phone with some magnetic gimmickry. This valet tray takes a different approach. It has a built-in Qi standard wireless charger that's in a rectangular compartment. The USB-C wire that is USB-C at both ends is faster; that's the advantage of USB-C. It carries more power and higher data speed. But the Qi standard disables charging when the phone is at 100%. This avoids overcharging. It's an excellent design. The charging port is built-in to the side of the valet tray. Just the placement of the indicator light is under the phone. A fully charged phone doesn't trigger charging. It avoids overcharging. There is drawback the shallow USB port doesn't allow proper seating of USB C plugs this puts a lot of weight on a barely plugged wire.
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Reviewed in the United States on September 19, 2025
G
Ginnilee
Dallas, US
★★★★★ 5
Very Nice!
Color: Best Dad-brown, Color: Best Dad-brown
I must admit I was a little suprised at how nicely done this Valet Tray has been made. My father used to have one similar to this when I was a child (without the charging base) that came from Italy. It was made from real leather and he had it for many years. This Valet Tray reminds me of his. I realize it is not real leather but it is definitely an excellent grade of PU. The seams are Immaculate, with razor straight stiching. Not a single thread out of place. The Vege Leather is truly beautiful, with realistic and natural looking coloration and shading as real leather would have. The feel is the same as well oiled and polished leather. Honestly I am impressed with how much time and effort has been put into this Valet Tray. This is an excellent Gift for anyone who has a busy life and likes to know where their keys are etc.. As well as being an excellent place to set your phone. The charging tray works perfectly. The user manual that comes with this Valet Tray gives all the information needed. It is very simple and easy to set up. You simply plug in the cord that is included with the tray and when you set your phone down on the charging pad, Bingo! it begins to charge. You can tell when it is charging because the light will turn from blue (standby) to green (charging). I must say that I am extremely happy in every way with this Valet Tray. The different Sayings that these come with are very nicely done. This one says "Dad, Your'e My Hero, Thanks for Everything" There are other sayings as well by this company, as for this one I am looking forward to giving this one to my husband on Fathers Day (from our son) and see the happiness on his face. I would recommend this to anyone with a "Dad" in their life who could use one.
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Reviewed in the United States on January 19, 2025
C
CadetClueless
Boise, US
★★★★★ 4
★★★★ Practical and Stylish Gift for Dad
Color: Best Dad-brown
This valet tray is a fantastic gift idea for dads! The design is excellent, offering a functional and organized space for essentials like keys, wallets, and phones, with ample storage for other belongings. The built-in wireless charger is a thoughtful touch, though upgrading it to MagSafe or Qi2 compatibility would make it even better for modern devices. The quality feels premium, with high-quality vegan leather that’s both durable and easy to clean, making the price feel justified. It’s also the perfect size for a desk, nightstand, or dresser. While the tray is marketed for dads, I’d love to see variations for women, children, or other demographics—it’s such a versatile and practical product. The only other thing I’d like is more color options to match different styles or decor. Overall, it’s a thoughtful and well-made gift that’s both stylish and functional!
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Reviewed in the United States on December 8, 2024

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