For a while, my pedal sustained when NOT depressed, sort of a reverse functionality, which I actually appreciated...but can't replicate. Anyone else?

According to the FAQ on the manufacturer's web site (for the SP-Double and SP-Triple), ¨Are the pedals switchable? The pedals will not have a switch to change polarity and will operate as normally open. This means that the pedal will send a value of 0 when up and a value of 127 when pressed down all the way. Different manufacturers may program their keyboards to respond to the opposite (127 when up, 0 when down) and to combat this some pedals may come with a switch to change the polarity of the pedal to match that of the keyboard. Typically, though there are ways around this without the need for the switch.¨ (The article is on the manufacture's website at: http://m-audio.com/kb/article/1967 )

Does this pedal have a gradient on the sensitivity for the sustain, OR is it an on/off sustain switch?

It appears this is a simple on/off switch pedal. For continuous or gradient performance the phrases to look for in sustain pedal description are "half-damper" or "half-pedaling." If there is no indication by the manufacturer of one of those descriptions, the pedal is just an on/off switch. If your digital piano or electronic keyboard supports half-damper, then a half-damper pedal varies the nature of the sustain effect based on how far down you depress the pedal. The only half-damper pedals I have found so are the Yamaha FC3A, Roland DP-10, and Korg DS1H. The half-damper effect emulates the action on an acoustic piano of lifting the felt damping pads only part way off of the strings.

Where is the cable of the pedal?

its permanently attached to the pedal.

Does this pedal work with all Korg keyboards?

The pedal has reversible polarity, so it will work with all keyboards.

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M-Audio HDH40 – Over Ear Headphones with Closed Back Design, Flexible Headband and 2.7m Cable for Studio Monitoring, Podcasting and Recording, Black

M-Audio HDH40 – Over Ear Headphones with Closed Back Design, Flexible Headband and 2.7m Cable for Studio Monitoring, Podcasting and Recording, Black

Product ID: 434657310

Details

Brand
M-Audio
Ear Placement
Over Ear
Form Factor
Over Ear
Impedance
32 Ohm
Noise Control
None

🌀2.7m flexible cable length

🎧Over-ear immersive comfort

🔒Closed-back acoustic isolation

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VT39210

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Description

🎶 Lock in your sound, unlock your creativity.

ALL DAY COMFORT FIT - Flexible headband and cushioned ear cups for marathon sessions without fatigue.
DURABLE RUGGED BUILD - Stainless steel enclosure built to withstand the demands of any studio hustle.
VERSATILE CONNECTIVITY - Includes 1/8” jack plus 1/4” adapter for seamless pro gear integration.
PRECISION STUDIO MONITORING - Experience crystal-clear sound accuracy for flawless production.
ULTIMATE ACOUSTIC ISOLATION - Closed-back design blocks distractions so you stay in the zone.

The M-Audio HDH40 headphones deliver professional-grade sound with a closed-back design for superior noise isolation, a flexible headband for extended comfort, and a 2.7-meter detachable cable with adapter compatibility—perfect for studio monitoring, podcasting, and recording.

Specifications

ASIN	B09S3VWMX6
Age Range Description	Adult
Antenna Location	Recording, Music, Gaming
Audio Driver Type	Dynamic Driver
Box Contents	Cable, Ear Cushions, Headband
Brand	M-AUDIO
Brand Name	M-AUDIO
Cable Features	Detachable
Cable Length	2.7 Metres
Colour	Black
Compatible Devices	Music Production Equipment, Laptops, Desktops, Gaming Consoles, Tablets, Telephones, Smart Speaker, Cellphones
Control Method	Touch
Control Type	Volume Control
Country of Origin	USA
Customer Package Type	FFP
Customer Reviews	4.5 out of 5 stars 1,329 Reviews
Ear Placement	Over Ear
Earpiece Shape	Over Ear
Enclosure Material	Stainless Steel
Form Factor	Over Ear
Frequency Range	15 Hz – 28 kHz
Frequency Response	28 KHz
Global Trade Identification Number	00694318025840
Headphone Form Factor	Over Ear
Headphone Jack	3.5 mm Jack
Headphones Ear Placement	Over Ear
Impedance	32 Ohms
Impedance Unit of Measure	32 Ohms
Is Autographed	No
Item Weight Unit of Measure	0.28 Kilograms
Manufacturer	inMusic Brands Inc.
Model Name	HDH40
Model Number	HDH40
Network Connectivity Technology	Wired
Noise Control	None
Number of Items	1
Product Features	over-ear; closed back design; flexible headband; 1/8 jack; 1/4 adapter included
Sensitivity	95 dB
Theme	Professional Audio
UPC	694318025840 069431802584
Unit Count	1 Count
Water Resistance Level	Not Water Resistant
Wireless Technology Type	Wireless

Reviews

D**Y

8.11.2024

م**ن

27.10.2025

S**A

24.07.2023

L**I

17.08.2024

J**E

31.12.2025

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VT39210

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