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Discussion Starter · #1 ·
Product Brand & Model: Helix P-DSP

Condition of all items: Lightly used, EXCELLENT condition

Total Price: $400 shipped (to Lower 48 USA):

Shipping Terms: Shipping included to Continental USA, anyone outside of that will pay additional shipping cost:


- Unless you are a Upgraded member, or your last 10 iTrader feedbacks are positive, you must post a picture of the exact item you are selling.

Additional info:
• 56-bit DSP Technology
• Compatible with Helix Optical and Bluetooth Interface (coming soon)
• Configuration via PC (coming soon)
• Extremely compact dimensions
• Fine adjustment of individual bands in 1/12 octave steps
• Graphical 30-band EQ per channel
• Inputs: 6 x RCA, 4 x High Level, 1 x Optical, 2 x Control Input, 1 x MicroSD, 1 x USB
• Operation via Smartphone (coming soon)
• Outputs: 8 x RCA and Remote Output
• Special audio DSP optimized for highest sound quality
• Time correction in 7mm steps
• Upload DSP settings without having to conntect to a PC
• Uses MicroSD memory cards
• Windows interface - communication via USB 2.0


Please be advised, all buyers and sellers are responsible for performing their own due diligence when considering any financial engagement. We recomend that you:

1) Check the iTrader feedback of the person you are dealing with on this site, as well as other car audio forums.
2) Ask for a name address and phone number. Call them and verify their info.
3) Valid e-mail address. Correspond before committing.
4) consider using an escrow service to protect yourself.

DO NOT proceed with a deal until you are completely satisfied with the other party.

DIYMobileAudio & Collova Media Inc. is not responsible for the outcome of any transaction on this site and will not moderate on your behalf.

· Registered
95 Posts
Discussion Starter · #4 ·
Figured I'd copy my response to a question regarding this unit vs. the audison Bit One and Bit Ten:

I will say that I don't have any hands-on experience with the audison units. But I did some research and trusted advice from some very knowledgeable people on this forum when I bought it. My previous experience was with the JBL MS8.

I do know that the Bit One is similar to the Helix, but more costly. The Bit Ten doesn't have the processing power of the Helix.

I bought the Helix for two main reasons: Optical input (I had an Audi A6 at the time) and I wanted to try my hand at tuning (versus auto-tune on the MS8).

I'm selling it for two reasons: I don't have the need for optical input any more and I'm OK with allowing the MS8 to do my tuning from here on out lol.

Overall, the P-DSP was and is amazing. It is so flexible and easy to use (once you get the hang of it). I had left a USB cable plugged in so I could mess with my tune any time I wanted and hear real-time results.
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