| Content | DBX 2231 Dual 31-Band Graphic Equalizer with noise reduction
It's amazing. One little button. It has so much effect. The 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 EQ's possible, boxes with the heritage and performance to rival our famous 30 Series EQ's. 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 EQ's 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 EQ's they wanted something that would be unique to these EQ's. 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 0 to +20dbu, the 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 EQ's. 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 EQ's at your pro audio outfitter. You'll see, with the 20 Series EQ's you get both 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
>+20dBm balanced/unbalanced (into 600) |
| SYSTEM PERFORMANCE |
| Bandwidth: |
20Hz to 20kHz, +/-0.5dB |
| Frequency Response: |
50kHz, +0.5/-3dB |
| Noise Reduction In: |
(+/-6 and +/-12dB 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: |
(+/-12dB range): |
| Signal-to-Noise: |
>90dB, unweighted, ref: +4dBu, 22kHz measurement bandwidth |
| Dynamic Range: |
>108dB, unweighted |
| THD + Noise: |
|
| INPUT
Connectors: 1/4" TRS, female XLR (pin 2 hot)
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)
Type: Impedance-balanaced/unbalanced, RF filtered
Impedance: Balanced 100 ohm, unbalanced 50 ohm
Max Output Level: >+21dBu balanced/unbalanced into 2k ohm or greater
>+18dBm balanced/unbalanced (into 600 ohm)
SYSTEM PERFORMANCE
Bandwidth: 20Hz to 20kHz, +0.5/-1dB
Frequency Response: 50kHz, +0.5/-3dB
Dynamic Range: Typicall >112dB
Signal-to-Noise: Typically >95dB
THD+Noise: | Bring a more professional sound to your mix
Adding a dbx® 266xs Compressor/Limiter/Gate to your live sound rig or studio gives you more dynamic control to help create a more polished, professional sound. Having compression in your audio chain gives you the ability to smooth out uneven levels, add sustain to guitars and fatten up your drums. It also makes it easy to bring vocals to the front of your mix - adding greater clarity and making them stand out from the surrounding instruments.
dbx knows compressors...after all we invented them! The 266xs is the latest in a long line of the world's most successful compressors from the inventors of the technology. Its patented Overeasy® compression technology provides smooth and musical performance while the AutoDynamic™ attack and release controls, found only on dbx compressors, puts great sound within easy reach. The 266xs can operate in stereo or dual-mono modes, has true RMS power summing and features quality XLR and 1/4" TRS inputs and outputs. It cuts no corners on visual feedback with gain reduction metering and easy-to-read backlit switches.
Features
- Error proof operation to smooth uneven levels, add sustain to guitars, fatten drums or tighten up mixes
- New gate timing algorithms ensure the smoothest release characteristics
- Program-adaptive expander/gates
- Great sounding dynamics control for any type of program material
- Separate precision LED displays for gain reduction, compression threshold and gate threshold allow quick, accurate setup
- Stereo or dual-mono operation
- Balanced inputs and outputs on 1/4" TRS and XLR connectors
- Side Chain insert
- Classic dbx® "Auto" mode
Specifications
| Input Connectors |
1/4" TRS and female XLR (pin 2 hot) |
| Input Type |
Electronically balanced/unbalanced, RF filtered |
| Input Impedance |
40kΩ balanced/unbalanced |
| Max Input |
>+22dBu Balanced or Unbalanced |
| Output Connectors |
1/4" TRS, female XLR (pin 2 hot) |
| Output Type |
Impedance-balanced/unbalanced, RF filtered |
| Output Impedance |
+4dBu: 100Ω balanced, 50Ω unbalanced; -10dBu: 1kΩ balanced, 500Ω unbalanced |
| Max Output |
>+21dBu balanced/unbalanced into 2kΩ or greater; >+18dBm balanced/unbalanced (into 600Ω) |
| Sidechain |
1/4" TRS Phone, Normalled: Ring = Output (send); tip = Input (return) |
| Sidechain Impedance |
Tip = >10kΩ (Input), Ring = 2kΩ (Output) |
| Sidechain Max Input Level |
Tip = >+22dBu (Input) |
| Sidechain Max Output Level |
Ring = >+20dBu (Output) |
| Compressor Threshold Range |
-40dBu to +20dBu |
| Compressor Threshold Characteristic |
Selectable OverEasy® or hard knee |
| Compressor Ratio |
1:1 to Infinity:1 |
| Compressor Attack Time |
Scalable Program-Dependent AutoDynamic™ |
| Compressor Release Time |
Scalable Program-Dependent AutoDynamic™ |
| Expander/Gate Threshold Range |
-60dBu to +15dBu |
| Expander/Gate Ratio |
1:1 to 4:1 |
| Expander/Gate Attack Time |
|
|
The class-A circuit used in the EQ-73 is similar to the eq section in the classical 1073 module, without the high pass filter. Additional frequencies have been added and the mid frequency band uses two inductors, the higher value of the second one is used for the two lowest frequencies, 160 Hz and 240 Hz, to achieve a suitable response.
The sound character is warm, punchy, sweet and musical. These classic characteristics have been heard on countless recordings through the years and it is a versatile sound that works very well on most sound sources and in most genres. The essence of this sound is now available at a surprisingly low cost, making it available to nearly everyone.
The EQ-73 has stepped frequency controls that offers a wide selection of frequencies from 20 Hz to 24 kHz.
The Low and High frequency bands are shelving and the mid frequency band is of the bell type.
The control range is +/-15 dB for the two lower bands and +/- 18dB for the high frequency band.
There are separate bypass switches for all three bands.
The EQ-73 is made to be used together with one of our PRE-73 models that has an Insert jack. It can also be used with many other units that has a low level insert jack.
Combining a PRE-73 and an EQ-73, and using a UNITE rack kit to mount them together, one will get a 19-inch 1073-style unit at a low cost and with a great sound!
FEATURES
- Vintage Style electronics. No intergrated circuits in the signal path
- 3-band with a dual inductor based mid frequency band
- Stepped frequency selection
- A wide selection of frequencies from 20 Hz to 24 kHz
- Control range up to +/- 18 dB
- Separate Bypass switches for each band
- Tantalum capacitors in the signal path
- Made to be used together with one of our PRE-73 models with an Insert jack or any other unit with a low level Insert jack
- TRS jack for in-and output connection, the nominal working level is around 18 dBu
- Selectable ground lift switch
- External power supply to avoid interaction with the audio circuits
- Great sound that suits most sound sources and genres
- A solid build quality that will last many years of normal use
| Digital stereo active crossover with 4 inputs and 8 outputs, incl. software .
- Flexible routing configurations for all standard mono and stereo output operating modes
- 4 analog inputs and 8 analog outputs (XLR)
- Active frequency filter types (Bessel, Butterworth and Linkwitz-Riley) with slopes up to 24 dB/octave split up the audio signal into different frequency bands
- Incl. software editor (for PC and Mac) for remote control via computer through USB interface: store, transfer, and manage your presets
- Up to 30 user presets storable in the device via software
- 5 menu languages selectable (German, English, French, Spanish, Dutch)
- Alphanumeric LCD screen with 2 lines of 16 characters each
- Input sensitivity digitally adjustable
- Inputs and outputs with 4-digit LED level meter as well as clip and limit LED indicator
- Mute switch with LED indicator per output
- 7-band parametric EQ per output
- Up to 7 ms signal delay adjustable for the outputs
- Output limiter with adjustable limits and automatic attack and release settings as overload protection for your amplifying system
- Switchable phase
- Lock function for prevents undesired changes to settings
- Rack installation, 1 U
- Windows XP, Vista, 7, 10 and Mac OS X 10.5.8 and better
- Digital signal processor
- The device can be connected via USB to the PC in connection with DXO Software
The firmware can be updated via the PC connection
- (19") 48.3 cm rack installation 1 U
| Power supply: |
100-240 V AC, 50/60 Hz
6 V DC 800 mA |
| Power connection: |
Mains input via Coaxial power connector (M) power supply cord with AC adapter (provided) |
| Frequency range: |
10 - 22000 Hz |
| THD: |
<0,005 % at 1 kHz |
| DSP: |
Digital signal processor |
| Crossover frequency: |
20-20000 Hz |
| Impedance: |
Input 10 kOhm
Output 50 Ohm |
| Gain: |
Output: -50 dB to +12 dB |
| Filter: |
Linkwitz-Riley; Butterworth; Bessel; 6db/oct; 12db/oct; 18db/oct; 24db/oct |
| Delay: |
0 - 7 ms |
| Dynamic range: |
Input: 114 dB
Output: 110 dB |
| Sample rate: |
48 kHz |
| Connections: |
Input: line via 4 x 3-pin XLR
Output: line via 8 x 3-pin XLR |
| Max. level: |
Input: +22 dBu
Output: +9 dBu |
| USB port: |
Typ B |
| PC connect: |
DXO Software via USB, firmware can be updated |
| Housing design: |
(19") 48.3 cm rack installation 1 U |
| Dimensions: |
Width: 48,3 cm
Depth: 22,3 cm
Height: 4,45 cm |
| Weight: |
1,90 kg |
| 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) |
|
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