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HM-400 , Rack-Mountable, 4-Channel Headphone Amplifier , Mackie
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Basic Information
Product Name HM-400
Sale Price Php 12,500.00
Consumer Price Php 13,500.00
Mileage Points :125.00
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Product Code P0000KGT
Product Details Rack-Mountable , 4-Channel Headphone Amplifier
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Shipping Cost Payment Options:
1."To be Paid on Delivery" Shipping is still limited to some areas in Visayas and Mindanao via AP Cargo.Shipping Cost may be paid by cash to courier (door-to-door) or upon branch pick-up. Service may expand nationwide in the nearfuture;
2."Pre-pay" Shipping covers countrywide (Philippines). Shipping cost needs to be settled with the item cost prior to shipping of the package.
Product Availability:
Some products are provided on a per order basis and could take 3-5 weeks to be available upon order.Kindly inquire for the availability of the items.

(Minimum Order : 1 or more / Maximum Order 0 or less)

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Product Details


Rack-Mountable, 4-Channel Headphone Amplifier

The Mackie HM-400 is a rack-mountable, 4-channel headphone amplifier designed to provide versatile headphone amplification for artists, musicians, and engineers.
It features a stereo main output via XLR and 1/4 "jacks and twelve 1/4" TRS stereo headphone outputs-three per channel-fed by a customizable blend of inputs.


One stereo main input via XLR and 1/4 "jacks can be mixed with a per-channel 1/4" stereo aux input. Each channel offers 2-band EQ for quick tone shaping, stereo balance or main / aux input mix control, and output level adjustments. Also on each channel are switches for muting left and / or right signals and operating in stereo or mono. 7-segment LED meters display main input and per-channel output levels.The HM-400 ships with an IEC power cable and occupies 1 RU in a standard 19 "rack.

-        Distribute signal to up to twelve pairs of headphones

-        Occupies 1 RU

-        One stereo main input via XLR or 1/4 "jacks

-        One, 1/4 "per unit input


-        One stereo main output via XLR or 1/4 "jacks

-        Three 1/4 "headphone outputs-one on the front panel and two on the rear-per channel

-        2-band EQ per channel for quick treble and bass adjustments

-        Per-channel Balance knob allows control of left / right level balance or aux / main input mix

-        Switches on each channel for L / R and mute St / 2-Ch (stereo / mono) mode

-        7-segment LED metering for input and each output channel

-        Heavy-gauge steel chassis for rugged durability



Number of Channels                           4

Input Connections                           2 x XLR 3-pin balanced (one stereo pair)

2 x 1/4 "TRS balanced

(one stereo pair, also accepts 1/4 & quot; TS unbalanced)

 1 x 1/4 "TRS stereo unbalanced for main input

 4 x 1/4 "TRS stereo unbalanced for aux inputs

Output Connectors                            2 x XLR 3-pin balanced (one stereo pair)

 2 x 1/4 "TRS balanced

 (one stereo pair, also accepts 1/4 & quot; TS unbalanced)

 12 x 1/4 "TRS stereo unbalanced headphone outputs

Maximum Input Level                     Main Input: +15 dBu                                                                   

 Aux Input: +20 dBu

Maximum Output Level                     Headphone Outputs: 550 mW per channel at 47 Ohms (+21 dBu)

Input Impedance                              Main Input: 20 kOhms balanced, 10 kOhms unbalanced

 Aux Input: 10 kOhms unbalanced

Output Impedance                           Headphone Outputs: 3 Ohms unbalanced

Gain Range                                     Main Input: -66 to +18 dBu

Function Controls                          Power on / off

Main level knob

L / R mute switches per channel

Stereo / 2-Ch switches per channel

2-band EQ per channel

Balance knob per channel

Output knob per channel

Frequency Response                      20 Hz to 20 kHz (± 1 dB)

THD                                             <0.01% (+4 dBu, 1 kHz, unity gain)

Noise                                           -66 dB

CMRR                                           Main Input:> 42 dB at 1 kHz

Display                                         1 x input level meter

                                                                4 x output level meters

Power Requirement                                100 to 120 VAC, 50/60 Hz, 24 W                                    

                                                                220 to 240 VAC, 50/60 Hz, 24 W

Power Connector                                    1 x 3-pin IEC male, 250 VAC, 10 A                                            

Construction Material                              Heavy-gauge steel chassis                                           

Dimensions (H x W x D)                         1.8 x 19.0 x 8.8 & quot; / 46 x 483 x 224 mm                             

Weight                                                     8 lb / 3.6 kg                                                      


Packaging Info

Package Weight                                      10.5 lb

Box Dimensions (LxWxH)                       20.8 x 10.6 x 4.1 "

What's In The Box

-       HM-400

-       Power Cable


1. Payment by bank transfer with bank account.(ex.BDO, Metro Bank, etc)

2. Payment via PayPal account : PayPal verified account is required.

3. Payment by credit or debit card via PayPal(Visa, Master, JCB, Amex etc.) : PayPal account is NOT required.

4. Payment by credit card(Visa, Master, JCB, Amex etc.) :3D verified credit cards only are eligible for payment by credit card.

5. Payment by bank transfer without bank account.(ex.LBC, Western Union, etc)


 For payment by bank transfer without bank account, the customer may pay by internet banking or telephone banking. The customer may also make payment at local banks. The name of the depositor is required to match the name registered as the depositor when placing the order. Payment shall be made within 7 days from placing the order. The order will be automatically cancelled otherwise.

*Important: All Prices in the website are subject to change without prior notice


  • Shipping method : LBC, 2GO, Fedex, DHL, EMS, Air21, AP Cargo, JRC, etc
    Covered destinations : Nationwide
    Shipping cost : may vary on destination and purchase amount
    Shipping time estimate : 2~6 business days(in case of in-stock products). Order-based or imported items may take longer to ship. Please inquire by calling the store or via email whether the item is in-stock or order-based.
    Shipment bound for EMS premium regions : The customer may be required to pay additional cost.

    *Important : Products are to be shipped after the payment is made. Please note that shipping may take longer depending on the products of the order.

     International shipments may be subject to import taxes, duties and customs fees, which are levied once your package reaches the country of destination, and are the responsibility of the recipient. In case that the customer refuses to receive the parcel, the products are to be returned to Philippines and will not be shipped again. According costs(shipping, customs and etc) are the responsibility of the customer and will be deducted from the refund.

Returns & Exchanges

  Please make sure you have selected right options(e.g. size, color and quantity) prior to completing the order.
Once the order is completed, it is assumed that the customer agreed on our exchange/refund policy.
Exchanges and refunds are accepted only if the exchange/refund request is proven valid for the following reasons.


Eligible for exchanges and refunds:
On condition that the package (Labels, tags) of the products are intact.
-       Sold out products
-       Wrong item delivered
-       Defective products

-       Shoddy Goods

Ineligible for returns and exchanges:
-       Products with customer-induced damages
-       Products whose value is decreased significantly due to elapsed time or other reasons and are not in condition for re-sale
-       Change of mind

* (Please contact us or Email customer service for details)


Exchange/refund procedure
For exchanges/refund, the customer is required to post an exchange/refund request on the “Q&A” board.

The request is to include the reason for exchanges/refunds and the order number.
In case of exchange/refund request due to product defects or wrong item delivered, detailed photos of the products are also required. Exchanges/refunds will be made shortly upon careful examination and confirmation on the reported defects. 

The shipping costs occurring from product defects or wrong item delivered are the responsibility of the

>Warranty will repair any product under warranty at no charge or replace the unit of the exact model if deemed necessary.

If repair of returned merchandise is necessary due to neglect, damage, misuse, or improper repair by others, a charge will be made for labor, parts, and return freight.

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