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The DPX Series was created in response to our dealers, contractors and users requesting a simple solution requiring general EQ and comp/limiting. Two products have been developed, the DPX-100 Graphic Equalizer & Compressor/Limiter and DPX-200 Parametric Equalizer & Compressor/Limiter. Using proven circuitry from our popular MQX and PQX series equalizers and combining
these features with our CLX series compressor/limiters provides two tools no audio system
should be without. By combining the features and benefits of two processors into one unit,
the result is two powerful tools providing a simple solution to everyday audio applications.
The EQ section of the DPX-100 is a 15-band, constant Q, 2/3 octave, ISO center, precision
wein bridge filter design. Other EQ features are: frequency range from 25Hz to 16KHz,
selectable 15dB or 6dB range, 25mm faders with 'center off' position, EQ in/out switch,
signal present and clip LEDs and switchable 18dB/octave -20Hz high pass filter. Two separate inputs are available in the DPX-200; a microphone preamp with input pad
and a line input. An input select switch and input level control are located on the front
panel. The EQ section consists of 4 bands of filtering; two full-bandwidth parametric EQs
as well as a low-shelf and high-shelf filter. Other EQ features are: in/out switching for
each filter, cut and boost of 15dB, signal present and clip LEDs, and master EQ level control.
The compressor/limiter section uses peak detection circuitry and has individual controls
for gain, threshold, ratio, attack, release and output level. More compressor/limiter features
include: in/out switch, 11-stage LED gain reduction meter, selectable 11-stage LED input/output
level meter, and a detector patch point for frequency-selective limiting or ducking. Additional features of the DPX-100 and DPX-200 are: the equalizer section and
compressor/limiter may be used independently or chained together in series, balanced
XLR and inputs and outputs, extremely low noise and distortion, internal power supply
and Ashly's five-year worry-free warranty.
| Separate Mic Pre and Line Inputs | | 2 fully parametric bands | | Parametric filters tunable from 20Hz to 20KHz | | Adjustable bandwidth from 3 1/3 to 1/20 of an octave | | High and Low Shelf filters | | True reciprocal curves | | Individual band in/out bypass switching | | Balanced Inputs and Outputs | | XLR, 1/4" TRS audio connections | | Five Year Warranty |
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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: | 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 |
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+/-15dB range |
+/-6dB range |
| Dynamic Range: |
109dB |
115dB |
| Signal-to-Noise: |
90dB |
97dB |
| THD + Noise: |
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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
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- Audiophile 31-band stereo graphic equalizer for live and studio applications
- Revolutionary FBQ Feedback Detection system instantly reveals critical frequencies and can also be used as audio analyzer
- Ultra-low noise 4580 operational amplifiers for highest signal integrity
- Dedicated Limiters with gain reduction meters for each channel protect your sound system from overload and distortion
- Pink noise generator provides test signals to adapt your sound system to any room acoustics
- Mono subwoofer output with dedicated level control and adjustable crossover frequency
- Additional sweepable high and low-cut filters for each channel remove unwanted frequencies e.g. floor rumble, hiss etc.
- Highly accurate 8-segment LED input/output metering and input gain controls for easy level setting
- Relay-controlled hard bypass with an auto-bypass function during power failure (fail-safe relay)
- Servo-balanced inputs and outputs with 1/4" TRS and gold-plated XLR connectors
- “Planet Earth" switching power supply for maximum flexibility (100
- 240 V~), noise-free audio, superior transient response plus low power consumption for energy saving
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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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