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Steve Meade Designs SMD DD-1 Distortion Detector

Steve Meade Designs SMD DD-1 Distortion Detector

Q: With this tool, you absolutely do not use any "bass boost" or gain overlap adjustment, correct?

Set your system eq or tone controls to flat, turn off any loudness setting, bass boost on the amp should not be needed if everything is setup correctly, adjust your gains with the amount of overlap you want, not all music is recorded at 0db, it may be -5 on one song and -10 on another, a good starting point is -5 on your mids and highs and -10 on the sub. You also will need to setup your crossovers correctly, get the cc1 for that, for EQ'ing the system you need a RTA for that, the goal is to get each frequency at the same level or flat

Q: Will this work if your deck doesnt have a cd player to use the disk on?

Download any tone app, i use PA Tone and set the app the 40hz/1kHz and play through stereo normally like you would any other song, and the dd1 will pick up the frequency when the app is set correctly. Its super easy.

Q: If you set your eq to flat and you achieve distortion free music, then how do you readjust the eq to your liking without clipping ?

Set everything flat and find the maximum volume without distortion for each part. Start with your headunit volume and finish with amps gain. Once you find max volume for the headunit use that to set the next part (either line driver, eq, or amp gains). Continue until you are done. Then if you want to use eq you will have to use only negative eq. Or you will have to turn down the gains so that any positive eq doesn't make your headunit / line driver clip. Adding eq can make you clip. For the vast majority of line drivers and headunits any positive eq will make the signal stronger and clip if you didn't have any spare room. This is why if you must have precisely every part of your system on max volume/gains then you should only use negative eq.

4.6/5

Product ID: 237556503

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Details

Brand
SMD
Power source
Corded
Style
Compact
Colour
（25.6)/Sj.211
Item weight
272 g

⚡100% analog circuit precision

📊Detects >1.0% harmonic distortion

🔋Powered by included 9V alkaline battery

Description

🎧 Detect distortion like a pro—because your sound deserves perfection.

WIDE INPUT RANGE - Handles signals from 0.125 to 1.2 VRMS, supporting up to 15,000 watts at 1 ohm—built for serious audio setups.
COMPACT PORTABLE - Lightweight and corded electric powered with included battery—perfect for on-the-go professionals and studio pros.
PURE ANALOG PRECISION - Experience distortion detection with zero digital interference for ultra-accurate audio analysis.
INSTANT VISUAL FEEDBACK - Bright LED indicators provide real-time signal presence and distortion alerts, so you never miss a beat.
HIGH SENSITIVITY TRIGGER - Automatically flags distortion levels above 1.0%, ensuring your sound stays pristine.

The Steve Meade Designs SMD DD-1 Distortion Detector is a compact, 100% analog device engineered to identify harmonic distortion above 1.0% with high accuracy. It supports a wide input signal range up to 1.2 VRMS (15,000 watts at 1 ohm) and features LED indicators for real-time monitoring. Powered by an included 9V alkaline battery, it’s an essential tool for audio professionals demanding flawless sound quality.

Specifications

Manufacturer	SMD/ D'Amore Engineering
Part number	SMD DD-1
Item Weight	272 g
Product Dimensions	25.4 x 15.88 x 5.08 cm; 272.16 g
Batteries	1 D batteries required. (included)
Item model number	DD-1
Colour	（25.6)/Sj.211
Style	Compact
Power source type	Corded Electric
Voltage	9 Volts
Item Package Quantity	1
Measurement Accuracy	1
Display style	LED
Included components	1
Batteries included?	Yes
Batteries Required?	Yes
Battery Cell Type	Alkaline

Have a Question? See What Others Asked

With this tool, you absolutely do not use any "bass boost" or gain overlap adjustment, correct?

Will this work if your deck doesnt have a cd player to use the disk on?

will this unit come with test tone cd?

If you set your eq to flat and you achieve distortion free music, then how do you readjust the eq to your liking without clipping ?

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TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

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