Radio Design Labs STMX2 2-Channel Universal Audio Mixer

Radio Design Labs STMX2
2-Channel Universal Audio Mixer

View all Radio Design Labs products

Radio Design Labs STMX2

The ST-MX2 is used in any application requiring mixing of two audio sources. A mic may be mixed with a line level music source. Two mics may be mixed to feed the mic or line level input of a power amplifier. A mic or professional +4 dBu line level mono sum is possible. It may be used to convert mono line level signals from consumer to professional, or from professional to consumer format. It may also be used as a microphone preamplifier, or conversely to adapt unbalanced or balanced line level signals into the microphone input of other equipment.

Specifications:

Inputs (2): Selectable mic or line
Input range for +4 dBu output:
* Mic: -45 dBu to -65 dBu; Max input -28 dBu
* Line: -18 dBV to +10 dBu; Max input +22 dBu
Input Impedance:
* Mic: 200 W
* Line: 20 kW bridging
Input/Output configuration: Balanced or unbalanced
Outputs (2): MIC and LINE
Output Impedance: 150 W (mic or line)
Frequency Response:
* Mic: 25 Hz - 50 kHz (± 1 dB)
* Line: 10 Hz - 30 kHz (± 0.25 dB)
THD+N:
* Mic:<0.05% (25 - 20 kHz)
* Line:<0.005%
IMD:<.004%
Output Level:
* Mic: -45 dBu
* Line: +4 dBu
Headroom:
    * Mic Input:>22 dB (rel. -50 dBu);>32 dB (rel. -60 dBu)
    * Line Input:>18 dB (rel. +4 dBu)
    * Output:>20 dB (rel. +4 dBu)
Noise:
* Mic:<-70 dB (150 W source; rel. +4 dBu);<-80 dB (200 W source; rel. +4 dBu) (mics set to 50 dB gain)
* Line:<-90 dB (referred to +4 dBu)
CMRR:
* Mic:>65 dB (50 Hz to 120 Hz)
* Line:>45 dB (50 Hz to 120 Hz)
Power Requirement: Ground-Referenced 24 to 33 Vdc @ 60 mA

	Radio Design Labs PS24A Power Supply, 24 Vdc @ 400 mA 24 VDC power supply for use with Radio Design Labs audio equipment. Usually ships in 1-2 business days List Price: $27.48 Our Price $20.85 You save 24%! Usually ships in 1-2 business days
	Radio Design Labs MB1-RDL Mounting Kit for STICK-ON, TX, or Rack-Up module Two mounting brackets mounts a STICK-ON, TX, or Rack-Up module to a flat surface. Usually ships in 1-2 business days List Price: $3.62 Our Price $3.11 You save 14%! Usually ships in 1-2 business days
	Radio Design Labs MB3-RDL Kit to Mount ST, TX Series Modules on FP Panel TX or STICK-ON Module fastens to MB-3 which slides into FP-RRA/H track. Usually ships in 2-3 weeks List Price: $6.08 Our Price $4.61 You save 24%! Usually ships in 2-3 weeks Need it sooner? Call us!
	Radio Design Labs RC1U Universal Rack Chassis, 3 Units RC-1U Holds Up To 6 RACK-UP Products or 12 STICK-ON Modules. RACK-UPs, STICK-ONs and Accessory Panels May Be Installed in Unlimited Combinations. Usually ships in 1-2 business days List Price: $167.38 Our Price $127.05 You save 24%! Usually ships in 1-2 business days
	Radio Design Labs RURA3A 19" Rack Adapter, multi The RU-RA3A permits the mounting of five STICK-ON modules together with three RACK-UP modules. If AMS accessories are mounted in the RACK-UP mounting spaces, then up to 10 STICK-ON modules may be secured to the RU-RA3A shelf. Usually ships in 1-2 business days List Price: $75.68 Our Price $57.44 You save 24%! Usually ships in 1-2 business days
	Radio Design Labs SMK-12 Mounting Strip for STICK-ON Units The SMK-12 allows removable surface (up to 6 units) or edge (typically 12, max. 16) mounting of STICK-ON units. They can be fastened to its surface using screws or adhesive foam pads. Usually ships in 2-3 weeks List Price: $33.25 Our Price $25.25 You save 24%! Usually ships in 2-3 weeks Need it sooner? Call us!
	Radio Design Labs SR-10 Stick-On Mounting Rack for 10 Units The STR-10 Racking System holds up to 10 STICK-ON units. It holds STICK-ONs at an angle allowing for control adjustment from either the edge of a STICK-ON, or the top (depending on where the adjustment is located on the STICK-ON ... Usually ships in 2-3 weeks List Price: $77.96 Our Price $59.18 You save 24%! Usually ships in 2-3 weeks Need it sooner? Call us!
	Radio Design Labs SR12A Stick-On Mounting Rack/Up to12 SR-12A chassis can be mounted in a rack or on a backboard to provide mounting of 12 STICK-ONs. Usually ships in 2-3 weeks List Price: $77.96 Our Price $59.18 You save 24%! Usually ships in 2-3 weeks Need it sooner? Call us!
	Radio Design Labs SR4 Mounting Frame for Stick/TX The SR-4 is a universal module chassis that can mount to a backboard, wall or nearly any other support. It provides mounting for 4 STICK-ON power amplifiers or 7 standard STICK-ON modules. TX ™ modules may also be mounted. There is ample ... Usually ships in 2-3 weeks List Price: $100.88 Our Price $76.56 You save 24%! Usually ships in 2-3 weeks Need it sooner? Call us!
	Radio Design Labs STR19A Rackmount System for 12 Stick-On Units The STR-19A Racking System holds up to 12 STICK-ONs in a 19 inch rack and only occupies two rack spaces. Usually ships in 2-3 weeks List Price: $162.81 Our Price $115.35 You save 29%! Usually ships in 2-3 weeks Need it sooner? Call us!
	Radio Design Labs STR-19B Rackmount Kit for 10 Stick-On Units The STR-19B Racking System holds up to 10 STICK-ON unitss in a 19 inch rack and only occupies two rack spaces. The STR-19B holds STICK-ONs at an angle allowing for control adjustment from either the edge of a STICK-ON, or the top ... Usually ships in 1-2 business days List Price: $192.62 Our Price $136.44 You save 29%! Usually ships in 1-2 business days
	Radio Design Labs UC1 Utility Chassis, Single The UC-1 is an ULTRASTYLE design tabletop chassis for mounting RDL modules and accessories. The front panel features a single RACK-UP mounting bay. The rear panel has an identical mounting bay and is supplied with matching filler panels. ... Usually ships in 2-3 weeks List Price: $102.05 Our Price $77.46 You save 24%! Usually ships in 2-3 weeks Need it sooner? Call us!
	Radio Design Labs WDG1 Table-Top Wedge-Mount Enclosure WDG1 Holds 1 RACK-UP and 2 STICK-ON Modules. Front-panel LED Can Be Used To Indicate Power or Anything Desired! Usually ships in 2-3 weeks List Price: $122.67 Our Price $93.11 You save 24%! Usually ships in 2-3 weeks Need it sooner? Call us!
	Radio Design Labs DRA-35S Din Rail Adaptor for STICK-ON The DRA-35S is a 35 mm DIN rail mounting bracket that provides positive mounting for any RDL STICK-ON® module. The oblique mounting angle of the DRA-35S allows an installer to mount several STICK-ON modules to a single DIN rail. Access to ... Usually ships in 2-3 weeks List Price: $20.36 Our Price $15.45 You save 24%! Usually ships in 2-3 weeks Need it sooner? Call us!
	Radio Design Labs DTB-RDL Detachable Terminal Block Use DTB's to quickly detach and reattach wiring harness to STICK-ON units. Usually ships in 2-3 weeks List Price: $7.25 Our Price $5.51 You save 24%! Usually ships in 2-3 weeks Need it sooner? Call us!