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Electro Voice Q1212 Professional 3600W Class-H Power Amplifier Amp EV Q-1212
Estimated price for orientation: 640 $
Category: ElectroVoice Q1212 Power Amp Cla
Class:
Description Condition: Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. See all condition definitions- opens in a new window or tab ... Read moreabout the condition Type: Power Amplifier Brand: Electro-Voice Model: Q 1212 MPN: Q1212 RMS Power: 1800W UPC: 800549164078 Number of Channels: 2
Up for grabs is an EV Q1212 power amp in very good condition and perfect working order. High quality amplifier with their killer LPN (low frequency processing) built in. makes a great sub amp. Lots of headroom. I have two of these and just don't need the backup. Here's the lowdown from Electro-Voice:
Q1212Innovative Class-H power
With Q Series' efficient Class-H design, the permanent voltage rail is designed to cover the average music signal, rather than permanently supplying the voltage for maximum output power. If dynamic peaks require a higher output voltage, the voltage rail is switched to the maximum. This process saves up to 50% of the power consumption found in conventional amplifier design, and results in a dramatic reduction in heat output. Q Series combines the sonic excellence and ruggedness of its Precision Series predecessors with Class-H innovation, all in a compact and affordable package.While many people understand there are tremendous differences between professional loudspeakers, many also tend to think that amplifiers are only differentiated by the amount of output power they provide. Electro-Voice amplifiers serve to prove that there are also audible differences.Dynamic Headroom
Amplifier power and distortion figures are typically specified with sine wave signals. However, music signals are far more dynamics than sine waves, comprising a pulsed wideband spectrum.EV believes that, above all figures, the tonal performance of live music counts most; therefore, all of their amplifiers are designed for dynamic headroom. This means that each and every EV amp has at least 30% more output capability for short-term signals, when compared to a long-term sine wave value. This additional headroom results in an amp that will, for example, allow for short term signal peaks of at least 780W when spec'd 600W.While dynamic headroom is audible when playing music through a sound system, another specification to observe is the increase in output power from an 8 ohm load to 4 ohms, and then down to 2 ohms. Of course, all Electro-Voice amplifiers are designed to be absolutely stable into loads of 2 ohms.Transient Response
When processing dynamic signals, other important criteria are signal speed and dynamic distortion. For example, kick drum signals carry pulses of many frequencies as an overlay spectrum. Therefore, and in contrast to many other manufacturers, EV specifies a lot more information on their amplifiers' dynamic behavior than just "slew rate" figures. Important tests referring to the amp's ability regarding multitone signal pulses are expressed by IMD-SMPTE measurements at high power levels. And, while IMD tests show the Intermodulation Distortion behaviour (how much "sound" is added by the ampifier), DIM30 is the real spec for speed in an amplifier. All these tests are carried out in EV labs during an amplifier's design phase, to ensure maximum sonic performance. While these technical explanations appear very complex, they are clearly audible. Take a Q Series amplifier and crank it up - you'll hear the difference immediately.Protection Package & Dynamic Limiter
There are many good-sounding amplifiers available; however, for an amp to be considered the world's best requires unparalleled reliability in real-world applications.Q Series amplifiers benefit from decades of professional amplifier design, and all the expertise that has made EV amps the concert/touring standard is built into Q Series. Our complete protection package includes sophisticated circuits against overheating, short circuit, DC output voltage, HF oscillation, back EMF (Electromotive Force), and destructive peak current.Furthermore, Q Series amps also protect your valuable loudspeakers with built-in dynamic limiters, preventing dangerous output clipping. The limiters immediately reduce amp gain when dynamic headroom is pushed to the limits at maximum output, keeping distortion below 1% in a situation that can otherwise cause a signal to clip, which is often fatal for woofers and drivers.Q-Series Amplifiers & Connectivity
Whatever application you choose, you can be sure your Q Series amp is prepared:Both inputs have a paralleled loop thru XLR output to route signal toother amp inputsBesides the usual channel A & B outputs via Speakon connectors (on pin1+/1-), output A carries the signal of channel B as well (on pin 2+/2-),providing an easy drive option for biamped speakersParallel & Bridge Mode option switches provide additionalfunctionality with minimized cabling requirementsAn additional switchable LPN (Low-Pass Notch) filter provides extratonalfundament and kick, with protective Low-Cut for using smaller passive 12"or15" cabinets without additional subwoofersSpecificationsMaximum Midband Output Power (THD=1%, 1kHz, dual channel):
1800W @2ohms
1200W @ 4 ohms
750W @ 8 ohmsRated Output Power (THD <0.1%, 20Hz-20kHz):
1100W @ 4 ohms
550W @8 ohmsMaximum Single Channel Output Power, Dynamic-Headroom, IHF-A:
3400W @2ohms
1800W @ 4 ohms
950W @ 8 ohmsMaximum Single Channel Output Power, Continuous, 1kHz:
2400W @2ohms
1500W @ 4 ohms
850W @ 8 ohmsMaximum Bridged Output Power, THD=1%, 1kHz:
3600W @ 4 ohms
2400W @8 ohmsMaximum RMS Voltage Swing, THD=1%, 1kHz: 90.6VPower Bandwidth THD=1%, ref. 1kHz, half power @ 4 ohms: 10Hz-30kHzVoltage Gain, ref. 1kHz: 32.0 dBInput Sensitivity, rated power @ 8 ohms, 1kHz: +6.6dBuTHD at rated output power, MBW = 80kHz, 1kHz: <0.03%IMD-SMPTE, 60Hz, 7kHz: <0.1%DIM30, 3.15kHz, 15kHz: <0.05%Maximum Input Level: +21 dBu (8.69Vrms)Crosstalk, ref. 1kHz, at rated output power: <-80dBFrequency Response, ref. 1kHz: 10Hz-40kHz (+/-1dB)Input Impedance, active balanced: 20kohmsDamping Factor, 1kHz: >300Slew Rate: 30V/µsSignal to Noise Ratio Amplifier, A-weighted: >110dBOutput Noise, A-weighted: <-71dBuOutput Stage Topology: Class HPower Consumption 1/8 maximum output power @ 4 ohms: 850WPower Requirements: 240V, 230V, 120V or 100V; 50Hz/60Hz (factoryconfigured)Protection: Audio limiters, high temperature, DC, HF, Back-EMF, Peakcurrent limiters, Inrush current limiters, Turn-on delayCooling: Front-to-rear, 3-stage-fansAmbient Temperature Limits: 40°-105°FSignal Processing: LPN, switchableSafety Class: IDimensions (W x H x D): 483 x 88.1 x 421.5 mmWeight: 39 lbs
Description
| Condition: | Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. See all condition definitions- opens in a new window or tab ... Read moreabout the condition | Type: | Power Amplifier |
| Brand: | Electro-Voice | Model: | Q 1212 |
| MPN: | Q1212 | RMS Power: | 1800W |
| UPC: | 800549164078 | Number of Channels: | 2 |
Up for grabs is an EV Q1212 power amp in very good condition and perfect working order. High quality amplifier with their killer LPN (low frequency processing) built in. makes a great sub amp. Lots of headroom. I have two of these and just don't need the backup. Here's the lowdown from Electro-Voice:
Q1212Innovative Class-H power
With Q Series' efficient Class-H design, the permanent voltage rail is designed to cover the average music signal, rather than permanently supplying the voltage for maximum output power. If dynamic peaks require a higher output voltage, the voltage rail is switched to the maximum. This process saves up to 50% of the power consumption found in conventional amplifier design, and results in a dramatic reduction in heat output. Q Series combines the sonic excellence and ruggedness of its Precision Series predecessors with Class-H innovation, all in a compact and affordable package.While many people understand there are tremendous differences between professional loudspeakers, many also tend to think that amplifiers are only differentiated by the amount of output power they provide. Electro-Voice amplifiers serve to prove that there are also audible differences.Dynamic Headroom
Amplifier power and distortion figures are typically specified with sine wave signals. However, music signals are far more dynamics than sine waves, comprising a pulsed wideband spectrum.EV believes that, above all figures, the tonal performance of live music counts most; therefore, all of their amplifiers are designed for dynamic headroom. This means that each and every EV amp has at least 30% more output capability for short-term signals, when compared to a long-term sine wave value. This additional headroom results in an amp that will, for example, allow for short term signal peaks of at least 780W when spec'd 600W.While dynamic headroom is audible when playing music through a sound system, another specification to observe is the increase in output power from an 8 ohm load to 4 ohms, and then down to 2 ohms. Of course, all Electro-Voice amplifiers are designed to be absolutely stable into loads of 2 ohms.Transient Response
When processing dynamic signals, other important criteria are signal speed and dynamic distortion. For example, kick drum signals carry pulses of many frequencies as an overlay spectrum. Therefore, and in contrast to many other manufacturers, EV specifies a lot more information on their amplifiers' dynamic behavior than just "slew rate" figures. Important tests referring to the amp's ability regarding multitone signal pulses are expressed by IMD-SMPTE measurements at high power levels. And, while IMD tests show the Intermodulation Distortion behaviour (how much "sound" is added by the ampifier), DIM30 is the real spec for speed in an amplifier. All these tests are carried out in EV labs during an amplifier's design phase, to ensure maximum sonic performance. While these technical explanations appear very complex, they are clearly audible. Take a Q Series amplifier and crank it up - you'll hear the difference immediately.Protection Package & Dynamic Limiter
There are many good-sounding amplifiers available; however, for an amp to be considered the world's best requires unparalleled reliability in real-world applications.Q Series amplifiers benefit from decades of professional amplifier design, and all the expertise that has made EV amps the concert/touring standard is built into Q Series. Our complete protection package includes sophisticated circuits against overheating, short circuit, DC output voltage, HF oscillation, back EMF (Electromotive Force), and destructive peak current.Furthermore, Q Series amps also protect your valuable loudspeakers with built-in dynamic limiters, preventing dangerous output clipping. The limiters immediately reduce amp gain when dynamic headroom is pushed to the limits at maximum output, keeping distortion below 1% in a situation that can otherwise cause a signal to clip, which is often fatal for woofers and drivers.Q-Series Amplifiers & Connectivity
Whatever application you choose, you can be sure your Q Series amp is prepared:Both inputs have a paralleled loop thru XLR output to route signal toother amp inputsBesides the usual channel A & B outputs via Speakon connectors (on pin1+/1-), output A carries the signal of channel B as well (on pin 2+/2-),providing an easy drive option for biamped speakersParallel & Bridge Mode option switches provide additionalfunctionality with minimized cabling requirementsAn additional switchable LPN (Low-Pass Notch) filter provides extratonalfundament and kick, with protective Low-Cut for using smaller passive 12"or15" cabinets without additional subwoofersSpecificationsMaximum Midband Output Power (THD=1%, 1kHz, dual channel):
1800W @2ohms
1200W @ 4 ohms
750W @ 8 ohmsRated Output Power (THD <0.1%, 20Hz-20kHz):
1100W @ 4 ohms
550W @8 ohmsMaximum Single Channel Output Power, Dynamic-Headroom, IHF-A:
3400W @2ohms
1800W @ 4 ohms
950W @ 8 ohmsMaximum Single Channel Output Power, Continuous, 1kHz:
2400W @2ohms
1500W @ 4 ohms
850W @ 8 ohmsMaximum Bridged Output Power, THD=1%, 1kHz:
3600W @ 4 ohms
2400W @8 ohmsMaximum RMS Voltage Swing, THD=1%, 1kHz: 90.6VPower Bandwidth THD=1%, ref. 1kHz, half power @ 4 ohms: 10Hz-30kHzVoltage Gain, ref. 1kHz: 32.0 dBInput Sensitivity, rated power @ 8 ohms, 1kHz: +6.6dBuTHD at rated output power, MBW = 80kHz, 1kHz: <0.03%IMD-SMPTE, 60Hz, 7kHz: <0.1%DIM30, 3.15kHz, 15kHz: <0.05%Maximum Input Level: +21 dBu (8.69Vrms)Crosstalk, ref. 1kHz, at rated output power: <-80dBFrequency Response, ref. 1kHz: 10Hz-40kHz (+/-1dB)Input Impedance, active balanced: 20kohmsDamping Factor, 1kHz: >300Slew Rate: 30V/µsSignal to Noise Ratio Amplifier, A-weighted: >110dBOutput Noise, A-weighted: <-71dBuOutput Stage Topology: Class HPower Consumption 1/8 maximum output power @ 4 ohms: 850WPower Requirements: 240V, 230V, 120V or 100V; 50Hz/60Hz (factoryconfigured)Protection: Audio limiters, high temperature, DC, HF, Back-EMF, Peakcurrent limiters, Inrush current limiters, Turn-on delayCooling: Front-to-rear, 3-stage-fansAmbient Temperature Limits: 40°-105°FSignal Processing: LPN, switchableSafety Class: IDimensions (W x H x D): 483 x 88.1 x 421.5 mmWeight: 39 lbs
Q1212Innovative Class-H power
With Q Series' efficient Class-H design, the permanent voltage rail is designed to cover the average music signal, rather than permanently supplying the voltage for maximum output power. If dynamic peaks require a higher output voltage, the voltage rail is switched to the maximum. This process saves up to 50% of the power consumption found in conventional amplifier design, and results in a dramatic reduction in heat output. Q Series combines the sonic excellence and ruggedness of its Precision Series predecessors with Class-H innovation, all in a compact and affordable package.While many people understand there are tremendous differences between professional loudspeakers, many also tend to think that amplifiers are only differentiated by the amount of output power they provide. Electro-Voice amplifiers serve to prove that there are also audible differences.Dynamic Headroom
Amplifier power and distortion figures are typically specified with sine wave signals. However, music signals are far more dynamics than sine waves, comprising a pulsed wideband spectrum.EV believes that, above all figures, the tonal performance of live music counts most; therefore, all of their amplifiers are designed for dynamic headroom. This means that each and every EV amp has at least 30% more output capability for short-term signals, when compared to a long-term sine wave value. This additional headroom results in an amp that will, for example, allow for short term signal peaks of at least 780W when spec'd 600W.While dynamic headroom is audible when playing music through a sound system, another specification to observe is the increase in output power from an 8 ohm load to 4 ohms, and then down to 2 ohms. Of course, all Electro-Voice amplifiers are designed to be absolutely stable into loads of 2 ohms.Transient Response
When processing dynamic signals, other important criteria are signal speed and dynamic distortion. For example, kick drum signals carry pulses of many frequencies as an overlay spectrum. Therefore, and in contrast to many other manufacturers, EV specifies a lot more information on their amplifiers' dynamic behavior than just "slew rate" figures. Important tests referring to the amp's ability regarding multitone signal pulses are expressed by IMD-SMPTE measurements at high power levels. And, while IMD tests show the Intermodulation Distortion behaviour (how much "sound" is added by the ampifier), DIM30 is the real spec for speed in an amplifier. All these tests are carried out in EV labs during an amplifier's design phase, to ensure maximum sonic performance. While these technical explanations appear very complex, they are clearly audible. Take a Q Series amplifier and crank it up - you'll hear the difference immediately.Protection Package & Dynamic Limiter
There are many good-sounding amplifiers available; however, for an amp to be considered the world's best requires unparalleled reliability in real-world applications.Q Series amplifiers benefit from decades of professional amplifier design, and all the expertise that has made EV amps the concert/touring standard is built into Q Series. Our complete protection package includes sophisticated circuits against overheating, short circuit, DC output voltage, HF oscillation, back EMF (Electromotive Force), and destructive peak current.Furthermore, Q Series amps also protect your valuable loudspeakers with built-in dynamic limiters, preventing dangerous output clipping. The limiters immediately reduce amp gain when dynamic headroom is pushed to the limits at maximum output, keeping distortion below 1% in a situation that can otherwise cause a signal to clip, which is often fatal for woofers and drivers.Q-Series Amplifiers & Connectivity
Whatever application you choose, you can be sure your Q Series amp is prepared:Both inputs have a paralleled loop thru XLR output to route signal toother amp inputsBesides the usual channel A & B outputs via Speakon connectors (on pin1+/1-), output A carries the signal of channel B as well (on pin 2+/2-),providing an easy drive option for biamped speakersParallel & Bridge Mode option switches provide additionalfunctionality with minimized cabling requirementsAn additional switchable LPN (Low-Pass Notch) filter provides extratonalfundament and kick, with protective Low-Cut for using smaller passive 12"or15" cabinets without additional subwoofersSpecificationsMaximum Midband Output Power (THD=1%, 1kHz, dual channel):
1800W @2ohms
1200W @ 4 ohms
750W @ 8 ohmsRated Output Power (THD <0.1%, 20Hz-20kHz):
1100W @ 4 ohms
550W @8 ohmsMaximum Single Channel Output Power, Dynamic-Headroom, IHF-A:
3400W @2ohms
1800W @ 4 ohms
950W @ 8 ohmsMaximum Single Channel Output Power, Continuous, 1kHz:
2400W @2ohms
1500W @ 4 ohms
850W @ 8 ohmsMaximum Bridged Output Power, THD=1%, 1kHz:
3600W @ 4 ohms
2400W @8 ohmsMaximum RMS Voltage Swing, THD=1%, 1kHz: 90.6VPower Bandwidth THD=1%, ref. 1kHz, half power @ 4 ohms: 10Hz-30kHzVoltage Gain, ref. 1kHz: 32.0 dBInput Sensitivity, rated power @ 8 ohms, 1kHz: +6.6dBuTHD at rated output power, MBW = 80kHz, 1kHz: <0.03%IMD-SMPTE, 60Hz, 7kHz: <0.1%DIM30, 3.15kHz, 15kHz: <0.05%Maximum Input Level: +21 dBu (8.69Vrms)Crosstalk, ref. 1kHz, at rated output power: <-80dBFrequency Response, ref. 1kHz: 10Hz-40kHz (+/-1dB)Input Impedance, active balanced: 20kohmsDamping Factor, 1kHz: >300Slew Rate: 30V/µsSignal to Noise Ratio Amplifier, A-weighted: >110dBOutput Noise, A-weighted: <-71dBuOutput Stage Topology: Class HPower Consumption 1/8 maximum output power @ 4 ohms: 850WPower Requirements: 240V, 230V, 120V or 100V; 50Hz/60Hz (factoryconfigured)Protection: Audio limiters, high temperature, DC, HF, Back-EMF, Peakcurrent limiters, Inrush current limiters, Turn-on delayCooling: Front-to-rear, 3-stage-fansAmbient Temperature Limits: 40°-105°FSignal Processing: LPN, switchableSafety Class: IDimensions (W x H x D): 483 x 88.1 x 421.5 mmWeight: 39 lbs