| Content | The MINIFBQ FBQ800 features Behringer's FBQ Feedback Detection System that instantly reveals critical frequencies and can also be used as an audio analyzer. An additional low cut filter removes unwanted frequencies such as floor rumble. Accurate 6-digit LED input/output meters and level control are provided for precise level indication. Long-term reliability is guaranteed with Behringer's high-quality illuminated faders, potentiometer and illuminated switches. The ultralow noise audio operational amplifiers offer outstanding sound performance. In addition, all Mini Series models can be stacked on top of each other to create an ultra-compact signal processing solution.
How Does it Work?
Imagine the frequency range of the sound you hear as a highway, a very wide one with nine lanes. Each of these "lanes” represents a single octave of the sonic spectrum. The first four lanes, labeled 63 - 500 (Hz) contain the really low frequency sound content, mainly bass, bass vocals, and the kick and tom drums. The three lanes labeled 1k, 2k and 4k (Hz), make up the fundamental zone of most musical instruments and the male and female vocals. 8k and 16k cover the frequency range of cymbals, snare drums and higher pitched percussion instruments. The FBQ800 allows you to control the flow of audio traffic in each of these nine lanes. When properly applied, EQ makes it possible to hear all of these frequency ranges equally, thus the term equalization.
Feedback Elimination
When a specific frequency, or range of frequencies, reaches too high a level, feedback occurs—that all-too-familiar squeal or howl you get when the mic is too close to the speaker. Basically, feedback happens when there is so much of a particular frequency that it is picked up by the mic and run through the system again. Thatʼs why feedback typically gets louder and louder the longer itʼs allowed to occur. Needless to say, this kind of feedback is very undesirable.
This is where the FBQ800ʼs Feedback Detection System really works its magic. In this ingenious circuitry, LEDs on the individual faders light up when that frequency band is approaching the danger zone. All you need do is lower the illuminated slider until the LED blinks out—voilà, feedback problem solved! What once required a highly trained ear is now an activity that even a child can master.
Sonic Toolkit…
That really is the best way to describe the FBQ800. With its nine frequency bands, you easily fine-tune your sound and instantly eliminate feedback. And each fader can be used to boost or cut the frequency range it controls by as much as 12 dB (and thatʼs a lot!).
Special attention is paid to the low frequency zone. In addition to low frequency faders, the FBQ800 features a Low Cut filter for removing unwanted low frequencies such as floor rumble, room resonance, electrical hum, etc. This is especially handy if your system is being used for speech rather than music.
To Boost or to Cut, That is the Question
Raising and lowering specific frequency bands can improve the frequency response of any roomʼs acoustics. For instance, if the room youʼre in is "bass-heavy,” lowering the 63 and 125Hz faders can help eliminate an overall "boomy” or "muddy” sound. Likewise, gently boosting the 8 and 16k sliders can add sparkle to a somewhat "dark” mix. Are the vocals getting lost in the mix? Raising the level of the 1k slider can help bring them out.
Itʼs important to note that raising a single fader level is not always the best solution; itʼs often better to lower the bands surrounding the frequency you want to bring out, and then boost the overall volume level to achieve better headroom.
Built for Accuracy and Reliability
Speaking of headroom, FBQ800ʼs 6-digit LED I/O meters and level control are provided for precise level maintenance. Long-term reliability is ensured, thanks to high-quality illuminated faders and switches, and our ultra low-noise audio operational amplifiers provide outstanding sonic performance. In addition, all Mini Series components can be stacked to create an ultra-compact signal processing solution.
Mini Series mixer with built-in feedback detection.
FEATURES
- Ultra-compact 9.5" graphic equalizer for studio and stage applications
- FBQ Feedback Detection system instantly reveals critical frequencies
- Additional Low-cut filter removes unwanted frequencies, like floor rumble
- 6-segment LED input/output meters and Level control for precise level indication
- High-quality illuminated faders, potentiometers and illuminated switches
- Low noise audio operational amplifiers offer excellent sound performance
SPECIFICATIONS
MINIFBQ FBQ800 9-Band Graphic Equalizer with FBQ
- INPUT
- Type 1/4" TRS connectors (balanced) or
- RCA connectors (unbalanced)
- Impedance approx. 20k ohms, balanced
- approx. 10k ohms, unbalanced
- CMRR 40 dB typ. @ 1 kHz
- Max. input level +15 dBu
- OUTPUT
- Type 1/4" TS connectors (unbalanced) or
- RCA connectors (unbalanced)
- Impedance approx. 120 ohms
- Max. output level +15 dBu
- SYSTEM SPECIFICATIONS
- Frequency response 10 Hz to 200 kHz, -3 dB
- Dynamic range 110 dB, 10 Hz to 22 kHz
- Distortion 0.003 % typ. @ 0 dBu
- Crosstalk
- Signal-to-noise ratio 10 Hz - 22 kHz
- GRAPHIC EQUALIZER
- Type 9 analog stereo bands
- Control range ±6 dB or ±12 dB, switchable
- Bandwidth 1 oct.
- OTHER FEATURES
- Low-cut filter 75 Hz (12 dB/oct.)
- Input level control -12 dB to +12 dB
- POWER SUPPLY
- Mains connection external power supply
- 9 V ~ / 750 mA
- Mains voltage
- DIMENSIONS/WEIGHT
- Dimensions (H x W x D) approx. 1 8/9" (48 mm) x 9 5/9" (243 mm) x 4 5/7" (120 mm)
- Weight approx. 0.86 lbs. ( 0.39 kg)
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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: Typically >112dB
Signal-to-Noise: Typically >95dB
THD+Noise: | 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: |
|
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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:
|
| |
The AD2055 combines 100% discrete, pure class A signal amplifiers with state-of-
the-art passive and active filter topologies. The AD2055's unique circuitry delivers
very high resolution transient detail at the operational extremes of real world equalization
demands. The AD2055 auto-bias DC servo loop control eliminates the need for all
interstage capacitor coupling. The AD2055 breathes life into all musical performances!
AD2055 FEATURES
Pure Class A, 100% discrete design
Smooth musical detail and sonic excellence
Minimum audio signal path
Dual mono operation
Transparent active and passive filter design
High headroom +30dB Very low noise -94dB
Fully balanced inputs and outputs
DC coupled, no transformers in audio path
Switched frequencies in high and low bands
Mid bands use X10 frequency for extended range
Wide bandwidth -3dB 1Hz to 450kHz
Low distortion less than 0.5% THD and IMD
All signal routing with sealed silver relays Conductive
plastic potentiometers for low noise
External 150W toroidal power supply 100% discrete
power supplies for audio path
Long lasting, stainless steel hardware
SONIC EXCELLENCE
The Avalon AD2055 Pure Class A music equalizer is the most powerful, low noise
parametric equalizer available today. Designed to optimize absolute signal integrity
and musical performance, the AD2055 combines the best of active and passive filter
topologies with sonic excellence unequaled by lesser designs. The AD2055 is the
perfect solution for two buss music-program equalization, special instrument EQ and
FX applications and ultra high performance mastering studio's.
Features include state-of-the-art, balanced 100% discrete, Pure Class A signal amplifiers,
practical user features and rugged hardware designed to deliver true high performance
audio for many years.
PASSIVE-ACTIVE FILTER DESIGN
Avalon equalizers feature the unique combination of both active and passive filter EQ designs.
This special combination enables the AD2055 to deliver high speed transient detail at the
operational extremes of real-world equalization demands. The passive high and low bands offer
alternate musical tone range to the full function active parametric mid bands. Passive equalizers
have long been a favorite with music lovers around the world. Full bodied, powerful (up to +/-32dB,
64dB range !) and sweet frequency selections are the benefits of the passive high-low EQ bands.
The full bandwidth twin mid bands provide variable frequency selection (X10 frequency multipliers
for very wide range), variable Q (width) and amplitude control.
MINIMUM SIGNAL PATH DESIGN
Avalon's advanced true symmetry design offers high-voltage, large headroom, extended bandwidth
and very low noise. The use of 100% discrete, Pure Class A signal amplifiers give the serious music
professional unlimited sonic character and a natural harmonic detail that enhances the program
material and becomes one with the music itself. The Avalon AD2055 breathes life!
AD2055 SPECIFICATIONS
Circuit Topology High-voltage 100% discrete, balanced and symmetrical
Class A
Output Gain Range Unity Gain
Maximum Input Level +30dB balanced XLR pin 2 hot
Maximum Output Level +32dB balanced 600 ohms, DC coupled, high-current
discrete Class A
Input / Output Type XLR type, pin 2 hot balanced
Noise 20kHz Unweighted -94dB (EQ in)
Distortion THD, IMD 0.5% (typical 0.05% at +6dB 1kHz)
Frequency Response -3dB 1Hz to 450kHz (input band limited)
Equalizer Type Passive high and low bands plus two fully parametric mid
bands
Bypass Hard-wire relay bypass for equalizer in-out
Low Band F1 Passive, amplitude to -32dB to +32dB shelf or peak-dip curve
F1 Frequency Range Switched 10 position 18Hz, 25, 30, 50, 72, 100, 150, 215,
300, 450Hz
Mid Band F2 Active, amplitude to -16dB to +16dB peak-dip curve
F2 Frequency Range Variable 35Hz to 450Hz (x10) 350Hz to 4k5Hz, Q (width)
0.3 to 3.0
Mid Band F3 Active, amplitude to -16dB to +16dB peak-dip curve
F3 Frequency Range Variable 160Hz to 2k0Hz (x10) 1k6Hz to 20kHz, Q (width)
0.3 to 3.0
High Band F4 Passive, amplitude to -26dB to +26dB shelf or peak-dip curve
F4 Frequency Range Switched 10 position 1k5Hz, 2k5, 3k5, 5k, 7k2, 10k, 12k5,
15k, 20k, 25kHz
AC-DC Power External AC supply, 150w toroidal transformer, 4 pin cable 90v
isolated,
(B2T Power Supply Included) 100-240v selectable 50/60Hz, 150w max
Dimensions 19 x 3.5 x 12 in (482 x 88 x 305mm)
Shipping weight 30lbs (13.6 kg)
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* 2 channel 15 2/3 octave band graphic equalizer
* 25Hz - 16kHz frequency control * Constant Q circuitry
(3% frequency accuracy) * Selectable 6dB or 12dB control
* Variable level control * By-pass switch * Overload threshold LED (5dB below clipping) * Ground lift switch * XLR & 1/4" TRS balanced Inputs/Outputs * Power: Selectable 120V/220V voltage
* Dimensions: 1.75" H x 19" W x x 8.5" D / 44.5mm x 483mm x 216mm - 1 space r.m. * Weight: 4.5 lbs. / 2.5kg
XEQ-152 Specifactions:
* Input type: Active balanced / Unbalanced * Output Impedance: |
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