What is the amplification amount of this device? I am going to connect to tv out with low sound level and need to increase the sound output for 2 peop

Its definitely enough for two people. I use it to play electronic drums along with music tracks and it works well. Tv would probably require less volume and be equally acceptable.

Does the mackie hm-4 come with a 1/4" to 1/4" tsr cable in addition to the included 12v power supply?

Hi, no it comes with HM-4 and the 12 VDC Power Supply, that's all,. Typically manufacturers don't give cables like that since it adds to the cost for them, and many people already have tons of cables. Please let us know if you have any other questions, thank you

Does this work in reverse, i.e., can I plug 4 stereo (line level) inputs and mix them to a single stereo output?

No, it is one input only, it's not designed (nor will it work) in the opposite direction

do the mackie hm-400 bass, treble and balance pots have a detent?

I dint know. I obliterated have the 4-user version, which does not have any sort of adjustment aside from volume... and there's is no detente.

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Mackie HM-4 Headphone Amplifier

Product ID: 88250487

Details

Brand
Mackie
Colour
Black
Compatible Devices
all
Item Weight
0.5 Pounds
Model Name
HM-4

🎧4 headphone outputs

🔋12V AC powered

🎚️individual volume control

€ 118.79

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Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎧 Amplify your crew’s vibe with Mackie HM-4 — because great sound is better shared!

BUILT TO LAST - Rugged, tank-like construction ensures durability for both studio and on-the-go use.
PLUG IN SHARE - Connect one stereo source and power up to 4 headphones simultaneously for seamless group sessions.
EFFORTLESS SETUP - Includes 12V AC adapter for instant power—just plug in and amplify your audio experience.
COMPACT POWERHOUSE - Solid-state amplifier technology delivers clean, reliable audio without bulky gear.
PERSONALIZED LISTENING - Each output features independent volume control, so everyone gets their perfect sound level.

The Mackie HM-4 Headphone Amplifier is a solid-state audio device designed to share a single stereo source with up to four headphones, each with individual volume control. Powered by a 12V AC adapter and built with rugged durability, it’s perfect for collaborative listening in studios or group environments.

Specifications

ASIN	B079C8MLG8
Amplifier Type	Solid State
Best Sellers Rank	#2,746 in Musical Instruments ( See Top 100 in Musical Instruments ) #1 in Bass Guitar Amplifier Preamps
Brand Name	Mackie
Colour	Black
Compatible Devices	all
Connector Type	3.5mm Jack
Country of Origin	China
Customer Reviews	4.4 4.4 out of 5 stars (1,890)
Global Trade Identification Number	00663961054873
Importer Contact Information	Trimac Products Private Limited, D-40, DSIDC Packaging Complex, kirti nagar, 110015
Item Type Name	Power-Amplifiers
Item Weight Unit of Measure	0.5 Pounds
Manufacturer	19820 North Creek Parkway Suite 201 Bothell WA 98011, Mackie
Manufacturer Contact Information	19820 North Creek Parkway Suite 201 Bothell WA 98011
Manufacturer Part Number	HM-4
Model Name	HM-4
Model Number	HM-4
Number of Bands	4
Number of Items	1
Output Channel Quantity	4
Packer Contact Information	19820 North Creek Parkway Suite 201 Bothell WA 98011
Power Source	Corded Electric
Speaker Size	0.25 Inches
UPC	663961054873 663961054057
Unit Count	1 Count
Warranty Description	1 year seller fulfilled warranty

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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€ 118.79

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Austria.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

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The product quality is outstanding. Exactly what I needed for my work.

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