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Whenever
you need to connect consumer gear to professional equipment,
Matchbox-HD is the way to go! Matchbox-HD eliminates
the hum, buzz, and distortion caused by mismatched levels
and impedances. Matchbox-HD is ideal for devices that
play and record, such as DAT recorders and computer
sound cards. Don't trust your audio to inexpensive units
that are powered with "wall-warts"! Superb audio performance
is why we've sold over 50,000 units worldwide.
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Product Description
The
rack-mountable Matchbox HD is the new high performance
version of the industry's most popular analog level
and impedance converter. Matchbox HD offers a true 100
dB S/N ratio, with 22 dB of headroom to yield 122 dB
of dynamic range. It is the very best way to interface
"consumer" or semi-pro equipment with professional audio
gear.
The
Matchbox HD is a bi-directional unit, employing four
independent amplifiers to convert stereo inputs and
outputs from unbalanced -10 dBv levels to +4 dBm balanced
600 ohm lines. All four outputs can be adjusted to accommodate
a wide range of operating levels.
The
Matchbox HD also features a special HI GAIN mode to
properly match the low-level unbalanced outputs of computer
sound cards. The units direct-coupled circuitry
and exceptional dynamic range provide absolute sonic
transparency, making Matchbox HD ideal for use with
digital editors, DAT recorders, and other digital audio
sources.
The
Matchbox HD has an internal AC power supply. It is 1/3
rack width and can be mounted using the optional rack
shelf, or wall mounted with optional wall/cabinet mounting
brackets.

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| IHF
Input/Output Levels |
-20 to 0 dBv
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| PRO
Input/Output Levels |
0
to +8 dBm, +26 dB max |
| IHF
Input Impedance |
10k
ohms; HI GAIN 5k ohms |
| PRO
Input Impedance |
20k
ohms |
| IHF
Output Load |
2k
ohms or higher, unbalanced |
| PRO
Output Load |
600
ohms or higher, balanced |
| IHF
to PRO Gain |
+6to
+20 dB; HI GAIN add 6 dB |
| PRO
to IHF Gain |
-6
to infinity (off) |
| Number
of Channels |
4:
2 IHF to PRO and 2 PRO to IHF |
| Frequency
Response |
DC
to 20kHz, ±0.25 dB |
| Distortion |
<
.01% IM/THD |
| Noise
|
-100
dB ref. +4 dBu, bal.
-95 dB ref. -10 dBv, unbal. |
| Power
Requirements |
115/230VAC,
50/60Hz, 3 W |
| Construction
|
Steel
enclosure |
| Physical
|
5.7w
x 1.7h x 6.0d 3lbs |
| Mounting |
Table
top, optional rack mount shelf, optional wall/cabinet
mounting brackets |
| Approval |
City
of Los Angeles Elect. Test Lab |
| Headroom |
22
dB (bal.); 30 dB (unbal.) |
| Dynamic
Range |
122
dB (bal.), 125 dB (unbal.) |
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Technical
Specifications
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