MH-8 Headphone Amplifier 8-Channel 250mW Outputs

Description

The MH-8 is an eight-output stereo headphones amplifier designed to distribute individual headphone mixes across studio racks and live rigs. It provides eight separate stereo outputs, each delivering up to 250 mW per side into 32 Ohm loads. The unit is rack-mountable in 1U space and includes a built-in power supply for stable operation.

Each headphone channel can select from three switchable sources, enabling flexible monitoring configurations. Two shared stereo inputs can be assigned to any channel and each of the eight channels also has a dedicated direct balanced TRS input. Channel-level controls, signal presence LEDs and overload indicators give immediate visual and tactile control over each mix.

Audio performance is engineered for accuracy, with a phones frequency response rated at 20 Hz to 50 kHz +/-3 dB and foldback outputs extending to 10 Hz to 100 kHz +/-3 dB. Noise and distortion figures are low, with PHONES S/N at 85 dB(A) and THD at or below 0.05% under nominal conditions. Channel separation and crosstalk specifications support clear stereo imaging and independent mixes.

Connectivity includes balanced XLR and TRS stereo inputs plus unbalanced RCA connectivity for input 2, per-channel balanced TRS direct inputs, and balanced TRS foldback outputs for chaining. The front panel offers per-channel level control and mono switching while the rear panel provides a ground terminal and ground lift switch for system grounding. Foldback outputs allow input signals 1 and 2 to be looped to additional MH-8 units for expanded systems.

Typical use cases include monitoring multiple talent or engineers in a broadcast suite, distributed headphone mixes for tracking sessions in recording studios, and foldback systems for live performance monitoring. The MH-8 is suited to installation where separate headphone mixes are required without adding bulky external mixers. Its signal routing options let you combine or isolate sources per listener.

The MH-8 is built in a rugged metal chassis with an internal power supply and user-replaceable fuse for dependable long-term service. Rear-panel ground lift and a dedicated ground terminal help prevent hum and ground loops in complex installations. Installation is straightforward – mount in a standard 19 inch rack, connect inputs and headphones, set channel levels and use foldback outputs to expand the system.

Specifications

Stereo input 1/2	XLR (balanced) x 2
Nominal input level	+4 dBu
Maximum input level	+24 dBu
Input impedance	56k Ohm
Stereo input 1	6.3-mm TRS (balanced) x 2
Nominal input level	+4 dBu
Maximum input level	+24 dBu
Input impedance	56k Ohm
Stereo input 2	RCA (unbalanced) x 2
Nominal input level	-10 dBu
Maximum input level	+10 dBu
Input impedance	22k Ohm
Direct inputs 1-8	6.3-mm TRS (balanced) x 16
Nominal input level	+4 dBu
Maximum input level	+24 dBu
Input impedance	56k Ohm
Foldback outputs	6.3-mm TRS (balanced) x 4
Nominal output level	+4 dBu
Maximum output level	+24 dBu
Output impedance	94 Ohm
Headphones outputs	6.3-mm stereo jack x 8
Maximum output power	250 mW + 250 mW (at 32 Ohm)
Frequency response	20 Hz - 50 kHz, +/-3 dB (PHONES outputs, 100 mW, 32 Ohm); 10 Hz - 100 kHz, +/-3 dB (FOLDBACK outputs)
S/N ratio	>=85 dB(A) (PHONES outputs, 20-kHz LPF); >=90 dB(A) (FOLDBACK outputs, 20-kHz LPF)
THD	<=0.05 % (PHONES outputs, 100 mW + 100 mW, 32 Ohm, 20-Hz HPF, 20-kHz LPF); <=0.007 % (FOLDBACK outputs, 20-Hz HPF, 20-kHz LPF)
Channel separation	>=50 dB(A) (within a channel, PHONES outputs, 20-kHz LPF, 1 kHz nominal input, 32 Ohm termination); >=90 dB(A) (FOLDBACK outputs, 20-kHz LPF, 1 kHz nominal input, 600 Ohm termination)
Crosstalk	>=65 dB(A) (PHONES outputs, 20-kHz LPF, 1 kHz nominal input, 32 Ohm termination)
Voltage requirements	100-240 V AC, 50-60 Hz
Power consumption	36 W
Dimension (W x H x D)	482 mm x 44 mm x 280 mm
Weight	3.8 kg
Operating temperature range	5 °C to 35 °C

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UPS Ground

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International Customers

We offer shipping via USPS/UPS for our international customers. You can find different shipping options during checkout.

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Major Credit Cards: Visa, MasterCard, Discover and American Express.
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Money orders: and personal checks or company checks (may take up to 10 days to clear).
Wire Transfer: ( Bank Transfer ) Only for the amount over $500. Contact us for the bank details.
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Purchase order: Fax purchase orders to 1.916.672.2557

We Offer A 30-Day Money Back Guarantee:

Our main goal is to ensure your complete satisfaction with our service and products. If, for any reason, you are not 100% satisfied with your purchase, you can return it within 30 days of the purchase date for a full refund. Our 30-day money back guarantee applies to all of the products we sell, except for: TVs and monitors 20" and larger, Special Order merchandise, or any item indicated as non-returnable. Shipping is not refundable. Prior to returning your purchase, a Return Merchandise Authorization (RMA) number will be provided to you.

Refunds:

Refunds on returned items will be issued in the same payment form as received from the customer at the time of purchase. Once we receive the product and it passes inspection, we will credit your account. Please allow 3 - 6 business days for a credit to appear on your account.

Exchanges:

If the item was sent back to us for an exchange, please allow 3 - 5 business days for the replacement to be processed.

No Returns/Exchanges on the following:

TVs and monitors 20" and larger
Special Order merchandise
Any item indicated on the website as non-returnable

For more information see our official Return Policy

TASCAM MH8 8-Channel Stereo Headphone Amplifier / 250 mW per Side / Direct Inputs / Foldback Loop

Description