Henry Engineering Matchbox HD
Bi-Directional Interface Amplifier

The Henry Engineering Matchbox-HD bi-directional stereo level and impedance interface quickly and easily connects consumer gear to professional equipment, eliminating the hum, buzz, and distortion [...]

RDL PS24AS
24 VDC Switching Power Supply, North American AC Plug, 500 mA, dc Plug

The RDL PS-24AS is a 24 Vdc switching power supply with a North American AC plug. RDL PS-24AS Specifications: • Input: 100 to 240 VAC • Output: 24 Vdc, 500 mA (UL, CSA) • [...]

Rolls MB15B
2-Way Stereo Converter

The Rolls MB15b ProMatch converts consumer level stereo RCA signals to balanced XLR professional line level, and vice versa. One side of the unit has two XLR inputs and stereo RCA outputs. The other [...]

ART CLEANBOXPRO
2 Channel Stereo Converter

The ART CLEANBoxPro dual channel level converter provides two channels of unbalanced to balanced level conversion and two channels of balanced to unbalanced level conversion in a rugged, compact, and [...]

Henry Engineering TwinMatch
Interface Amplifier

TwinMatch is a dual-stereo (4-channel) level and impedance converter that interfaces two unbalanced consumer stereo outputs with professional balanced equipment. TwinMatch is ideal for use with a [...]

ART PDB
Passive Direct Box

We forget which rock star said, “I'd rather go onstage without my pants than without my direct box,” but whoever it was, he exposed a universal truth. If you are in the business of making sound, [...]

Henry Engineering Multiport
Multi-Format Audio Interface Panel

The Henry Engineering MultiPort is a utility interconnect panel that facilitates interface between a studio and external audio equipment. MultiPort provides convenient access to a studio's analog and [...]

Hosa Technology PDR369
Balanced XLR Patch Bay

The Hosa PDR369 is an affordable straight-through 12 point balanced XLR mic input patchbay. It ships with female front and male rear connectors, but these can easily be reversed by the user if [...]

Henry Engineering Patchbox-II
Stereo Output Multiplier

The new PatchBox II by Henry Engineering takes a 1/4" TRS L/R stereo source and delivers two balanced XLR, four 1/4" TRS and 6 RCA pairs, for even more outputs from one stereo source! The [...]

DBX PB48
Patchbay, 1/4" TRS-Balanced

The dbx PB48 is a well-built, reliable patchbay that just works, all the time, every time. It's user-configurable for half-normalled or de-normalled, with 48 1/4" points on the front panel, connected [...]

ART T8
Eight Channel Transformer Isolator

The ART T8 (Transformer Eight) a high quality, totally passive audio interface that uses 8 transformers to separate input and output signal grounds, thereby isolating two systems and reducing hum and [...]

Whirlwind IMP2
Direct Box Single Channel

Built rugged on the inside and outside, the Whirlwind IMP2 passive direct box is a mainstay of pro systems everywhere. It converts a line or instrument level unbalanced signal to a low impedance [...]

RDL STA-1
Interface Amplifier

The STA-1 is a dual-channel line-level preamplifier with bridging inputs, adjustable gain or loss, and low-impedance outputs. Each of the two identical circuits is both an electronic line transformer [...]

RDL STA-1M
Audio Line Amp

The STA-1M allows bridging any audio line, adjusting the gain, and driving a balanced or unbalanced line. The circuit design allows the input to accept either balanced or unbalanced signals, of [...]

Ebtech HUMX
Ground Hum Eliminator

The Ebtech "Hum X" filters out unwanted voltage and current in the ground line that cause ground loop hum while simultaneously maintaining a solid, safe ground. You no longer have to run your audio [...]

Ebtech HE2XLR
Hum Eliminator - 2 Channel w/XLR

The Hum Eliminator HE2 (2-channel model) eliminates 60 Hz cycle hum caused by ground loops and also converts back and forth between balanced and unbalanced signals at either end. 1/4" TRS inputs and [...]

Countryman DT85
DI Box (Battery Or Phantom Power)

Here's a Direct that thinks outside the Box. The compact Type 85 active direct box connects any high-impedance instrument pickup, even piezo pickups, to a balanced microphone (XLR type) input. It [...]

ART ZDIRECT
Passive Direct Box

The Zdirect is a high quality totally passive interface that lets you connect instrument, line, or speaker level signals to a mixer or other balanced input thru a high performance audio isolation [...]

Ebtech LLS2XLR
Line Level Shifter - 2 Channel w/XLR

The Line Level Shifter is designed to increase or decrease signal voltage (-10dBV and +4dBu) without adding noise. The Line Level Shifter also converts back and forth between balanced (+4dBu) and [...]

RDL ST-UBA2
Interface Amplifier, Unbalanced to Balanced

The Radio Design Labs STU-BA2 two-channel interface amplifier is used in any application requiring conversion from unbalanced consumer format signals to professional +4 dBu. It may be used to balance [...]

RDL STA-1PKG
STA1 Level Matching Amp w/ PS24AS

This package includes the STA-1 and the PS-24AS Switching Power Supply. The STA-1 is a dual-channel line-level preamplifier with bridging inputs, adjustable gain or loss, and low-impedance outputs. [...]

RDL STP-1
Dual Attenuator

The STP-1 is a pair of convenient attenuator pads that can be located at the precise location that attenuation is needed. The low-cost STP-1 eliminates the costly labor of figuring and assembling [...]

Rolls BUZZOFF
Hum Eliminator (HE18)

The Buzz Off is a 2-channel audio hum and buzz remover. Everyone knows how annoying it is to have 60 cycle hum in your sound. Now you can eliminate virtually all ground hum and buzz by simply [...]

Aphex 124A
Level Matching Interface

The 124A by Aphex easily interfaces consumer audio equipment to professional studio and broadcast gear. Active, servo-balanced circuitry converts +4 dBm (or +8 dBm) line levels to -10 dBm (hi-fi) [...]

RDL HR-DAC1
D to A Converter - 24 Bit / 192 kHz

The HR-DAC1 is the ideal choice in installations requiring high quality analog audio from an AES/EBU, AES-3ID or S/PDIF digital audio source. The HR-DAC1 automatically detects a valid input on any of [...]