| Content | Passive splitter box for microphone signals. One module has 4 channels. Each channel has an input, an output wired in parallel for passthrough of phantom power, and two splitter transformer-isolated outputs. All outputs are also decoupled via resistors.
- Each channel: Input: female XLR type
- Outputs: 1 parallel male XLR type, 2 transformer isolated male XLR type
- Nominal impedance for inputs/outputs: 200
- Max. input level: + 6 dBu
| 1231 Dual 31-Band Graphic Equalizer
The dbx? 12 Series were designed to meet the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls. The 1231 provides standard features like dual-channels, 31 1/3 octave bands, ISO frequency centers, +/- 12 dB input gain range, and switchable 40Hz/18 dB per octave low-cut filters, but also includes other insightful features. These include 45 mm faders; selectable +/-6dB or +/-15dB boost/cut range for precise gain adjustments; XLR, barrier strip, and 1/4'' TRS connectors for installation ease; balanced inputs and outputs for quiet operation; and chassis/signal ground lift capabilities for quick hum isolation. The visionary design of the dbx 12 Series makes your job easier.
The dbx 12 Series Equalizers were precision engineered to provide years of maintenance-free operation in any application. The magnetically isolated transformer, electronically balanced/unbalanced inputs and servo balanced/unbalanced outputs, RF-filtered inputs and outputs, and power-off hard-wire relay bypass with 2 second power up delay were steps our engineers took to ensure compatibility for all installations. Only the best components were utilized, yielding a 10Hz to 50kHz frequency response, greater than 90dB SNR (ref +4dBu), less than 0.005% THD +Noise (1kHz at +4dBu), and interchannel crosstalk of less than -80dB from 20Hz to 20kHz. All this attention to detail is contained in a 3U steel/aluminum chassis.
SPECIFICATIONS:
| INPUT |
| Connectors: |
1/4" TRS, female XLR (pin 2 hot), and barrier terminal strip |
| Type: |
Electronically balanced/unbalanced, RF filtered |
| Impedance: |
Balanced 40 kOhm, unbalanced 20 kOhm |
| Max Input Level: |
>+21dBu balanced or unbalanced |
| CMRR: |
>40dB, typically >55dB at 1kHz |
| OUTPUTS |
| Connectors: |
1/4" TRS, male XLR (pin 2 hot), and barrier terminal strip |
| Type: |
Impedance-balanaced/unbalanced, RF filtered |
| Impedance: |
Balanced 200 ohm, unbalanced 100 ohm |
| Max Output Level: |
>+21dBu balanced/unbalanced into 2 kOhm or greater
>+18dBm balanced/unbalanced (into 600 ohm) |
| SYSTEM PERFORMANCE |
| Bandwidth: |
20Hz to 20kHz, +0.5/-1dB |
| Frequency Response: |
50kHz, +0.5/-3dB |
|
+/-15dB range |
+/-6dB range |
| Dynamic Range: |
109dB |
115dB |
| Signal-to-Noise: |
90dB |
97dB |
| THD + Noise: |
|
| More sound to your amps and speakers
The secret to making speakers sound great lies with the crossover you use. With the dbx® 234xs Crossover you'll get great performance, ultra low-noise, rugged reliability and four decades of dbx knowledge and expertise in building the world's finest processors. The 234xs uses precision filters to separate the audio signal and direct the correct frequencies to your loudspeaker drivers. By directing only the specific frequency bands to each speaker driver the 234xs leaves your amplifiers free to use their full power on the usable signal eliminating distortion and giving your PA system a cleaner and better sound.
The dbx 234xs is a dual channel crossover with all the features you would expect from a professional product. It features Linkwitz-Riley 24dB per octave filters, independent output gain controls for level matching, output phase inversion, 40 Hz low cut filter, and optional mono summing of the low frequency (subwoofer) output. Everything in the design exudes great precision from the solid "click" controls to the high quality XLR inputs and outputs.
XLR balanced ins and outs
Mode switches for mono 4-way or stereo 2-way/3-way operation
Low frequency summed (subwoofer) output
x10 range switch on both channels
40Hz high pass (low cut) filter both channels
Phase reverse switch on all outputs
Individual level controls on all outputs
24dB per octave Linkwitz-Riley filters (the professional standard)
Stereo/Mono status LEDs indicate the selected mode
dbx® 2 year parts and labor as standard
CSA NRTL/C approved
CE compliant
| Input Connectors |
XLR |
| Input Type |
Electronically balanced/unbalanced, RF filtered |
| Input Impedance |
Balanced >50k ohm, unbalanced >25k ohm |
| Max Input |
>+22dBu balanced or unbalanced |
| CMRR |
>40dB, typically >55dB at 1kHz |
| Output Connectors |
XLR |
| Output Type |
Impedance-balanaced/unbalanced, RF filtered |
| Output Impedance |
Balanced 200 ohm, unbalanced 100 ohm |
| Max Output |
>+21dBu balanced/unbalanced into 2k ohms or greater |
| Bandwidth |
20Hz to 20kHz, +/-0.5dB |
| Frequency Response |
90 kHz, +0/-3 dB |
| Signal to Noise Ratio |
Ref: +4 dBu, 22 kHz measurement bandwidth |
| Signal-to-Noise (Stereo Mode) |
>94dB (Low Output), >93dB (Mid Output), >90dB (High Output) |
| Signal-to-Noise (Mono Mode) |
>94dB (Low Output, Low/Mid Output); >92dB (High/Mid Output); >88dB (High Output) |
| Dynamic Range |
> 106 dB, unweighted, any output |
| THD+Noise |
| Interchannel Crosstalk |
| Crossover Frequencies (Stereo Mode) |
Low/Mid: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting); Low/High: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting); Mid/High 450Hz to 9.6kHz (x10 setting) |
| Crossover Frequencies (Mono Mode) |
Low/Low-Mid: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting); Low-Mid/High-Mid: 450 Hz to 9.6 kHz; High-Mid/High: 450 Hz to 9.6 kHz |
| Crossover Filter Type |
Linkwitz-Riley, 24 dB/octave, state-variable |
| Low cut Switch |
Activates 40 Hz Butterworth, 12 dB/octave high-pass filter, one switch per channel. |
| Phase Invert Switch |
Inverts the phase at the output, one switch per output. |
| x1 / x10 Switch |
Multiplies the low-high(mono: low/mid and high/mid) crossover frequency range of the front-panel markings by a factor of 1 or 10, one switch per channel. |
| Mode Switch |
Selects stereo/mono and 2/3/4-way operation |
| LF Sum Switch |
Selects normal (stereo) or mono-summed low frequency operation and disables Ch 2ʼs low output phase invert LED to indicate that this output is not operational in the LF sum mode. |
| Indicators |
Stereo Operation (Green); Mono Operation (Yellow); Low Cut (Red-per channel); x10 (Green-per channel); Phase Invert (Red-per output) |
| Operating Voltage |
100-120 VAC 50/60Hz; 120 VAC 60Hz 230 VAC 50/60Hz |
| Operating Temperature |
32°F to 113°F (0°C to 45°C) |
| Power Consumption |
15W |
| Power Connector |
IEC receptacle |
| Dimensions |
1.75" H X 19" W X 6.9" D (4.4cm x 48.3cm x 17.5cm) |
| Unit Weight |
4.0 lbs. (1.8 kg) |
| Shipping Weight |
5.8 lbs. (2.6 kg) |
|
DBX 2215 Dual 15-Band Graphic Equalizer with Noise Reduction
It's amazing. One little button. So much effect. dbx? Type III? Noise Reduction is an entirely new concept... virtually instantaneous encode/decode within the circuitry of the box. We started out to build the finest EQs possible, boxes with the heritage and performance to rival our famous 30 Series EQs. And to no one's surprise they came out awfully darn good. (Ask to see the Audio Precision plots compared to the competition.) But then, Roger (our chief engineer, a nice guy, as far as engineers go) got the crazy idea of putting this new noise reduction stuff in the box. We listened to it and were amazed. The EQs sounded great without it but with it the performance was nothing short of incredible. Check it out yourself and see.
But hey, Roger wasn't about to stop there. PeakPlus? Limiter. Who knows more about limiting than the folks at dbx; nobody... that's who. So when the guys were developing this new series of EQs they wanted something that would be unique to these EQs. That's when Roger got another one of his bright ideas and said "I bet they'll work a lot better if there's a cool limiter built in." Next thing you know, all the guys are in the studio amazed at the new limiter Roger had designed specially for the 20 Series. Once again, hearing is believing... With a threshold range of 0dbu to plus 20dbu, the patent-pending PeakPlus limiter is designed to tame your program material from the subtlest nuances to the rowdiest hits. Also, the four stage LED ladder gives you a great visual indication as to what the limiter is doing.
20 Series EQs. You used to have to settle for second best in a reasonably priced EQ but not any more. With the new 20 Series from dbx Professional Products you get a great EQ circuit, a graceful yet powerful limiter and the revolutionary new design of the Type III Noise Reduction. Check out the dbx 20 Series graphic EQs at your pro audio outfitter. You'll see, with the 20 Series EQs you get MORE!!!
SPECIFICATIONS:
|
INPUT
| |
Connectors:
|
1/4" TRS, female XLR (pin 2 hot), and barrier terminal strip
| |
Type:
|
Electronically balanced/unbalanced, RF filtered
| |
Impedance:
|
Balanced 40k ohm, unbalanced 20k ohm
| |
Max Input Level:
|
>+21dBu balanced or unbalanced
| |
CMRR:
|
>40dB, typically >55dB at 1kHz
| |
OUTPUTS
| |
Connectors:
|
1/4" TRS, male XLR (pin 2 hot), and barrier terminal strip
| |
Type:
|
Impedance-balanaced/unbalanced, RF filtered
| |
Impedance:
|
Balanced 200 ohm, unbalanced 100 ohm
| |
Max Output Level:
|
>+21dBu balanced/unbalanced into 2k or greater
>+18dBm balanced/unbalanced (into 600)
| |
SYSTEM PERFORMANCE
| |
Bandwidth:
|
20Hz to 20kHz, +/-0.5dB
| |
Frequency Response:
|
50kHz, +0.5/-3dB
| |
Noise Reduction In:
|
(+/-6 and +/-15dB range):
| |
Signal-to-Noise:
|
>102dB, unweighted, ref: +4dBu, 22kHz measurement bandwidth
| |
Dynamic Range:
|
>120dB, unweighted
| |
Noise Reduction Out:
|
(+/-6dB range):
| |
Signal-to-Noise:
|
>94dB, unweighted, ref: +4dBu, 22kHz measurment bandwidth
| |
Dynamic Range:
|
>112dB, unweighted
| |
Noise Reduction Out:
|
(+/-15dB range):
| |
Signal-to-Noise:
|
>90dB, unweighted, ref: +4dBu, 22kHz measurement bandwidth
| |
Dynamic Range:
|
>108dB, unweighted
| |
THD + Noise:
|
| |
- With improved 192 kHz sample rate for the best sound reproduction.
- Supports uncompressed 2-channel LPCM (Linear Pulse Code Modulation) audio signals.
- Supports compressed 2-channel and multi-channel Dolby Digital and DTS audio signals.
- Ideal for presentation or distribution to another room.
- The optical (Toslink) digital audio splitter can split a single optical digital input to four outputs without delay or loss of quality.
- Supports the S/PDIF and Toslink standard.
Your TV has 1 Toslink output, but you use 2 amplifiers. This requires the Toslink cable to be split from 1 into 2. An additional amplifier could be, for example, a surround set, a sound bar of an amplifier in the kitchen.
Connections
|
|
| Audio input |
1 x Toslink (optical) |
| Audio output |
2 x Toslink (optical) |
Audio
|
|
| Supported audio |
PCM2, Dolby Digital 5.1 and DTS |
| Sample rate |
Up to 192 kHz |
General
|
|
| Dimensions (h x w x d) |
24 x 46 x 46 mm |
| Weight |
22 grams |
| Ambient temperature |
+0 to +40 °C |
| Humidity |
10% to 85% |
| Power |
100-240 VAC 50/60 Hz, 5 VDC adapter |
| The MX225 is designed for remote volume control of multiple amplifiers or powered speakers in a distributed audio system. Two stereo sources are available to each of five output zones. Each source input pair handles separate left and right balanced line level signals. Each output zone features independent level control from inputs 1 and 2, stereo/mono selector with mono indicator, LED level metering, and left and right balanced line level zone outputs. All audio connections are balanced XLR. The built in power supply and single high 19″ rack mount format allows for easy installation and reliable operation.
- 5 Zone mixer / distributor
- Adjusts volume of multiple amplifiers or active monitors separately
- Stereo/mono switch + clip and 5 segment LED on each zone
- Connectors: 4x line in XLR (2x L/R), 10x XLR Out (5x L/R)
- Dimensions: 482 x 152 x 44.5 mm (19"/1U)
- Weight: 2.4 kg
| XLR-F balanced (x4) |
| XLR-M balanced (x10) |
| 47k Ω |
| 200 Ω |
| .05% Typical |
| > 90dB typical |
| +20dBu |
| +24dBu balanced |
| +6DB |
| USA – 105 to 125 VAC / 50-60Hz, 15 W typical |
| 1.75″H x 19″W x 7.25.0″D (44.5mm x 483mm x 184mm) |
| 5.34 lbs (2.42 kg) |
|
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