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Acoustic Power Lab :: Home
describing sound processors from the Acoustic Power Lab. Does anybody have any practical experience with it?
According to the manufacturer this device has won different competitions in Europe. Looks promissing, but seems to be lacking some smart features as bluetooth, crossover, etc. As I understand the philosofy of the company - to produce a really audiophile unit of minimalistic design comprising only what is neccesary to produce high sound quality.
The „Pro Sound News Europe” trade journal lists SPFR (sound/acoustic power frequency response) correction technology as one of the three leading innovations in the field in Europe. The invention was awarded the Excellence prize by the AES in New York, 2007. In 2010 the author developed an alternative technology version for application in car audio systems. The car equipped with that solution earned “best sound” at the Salzburg EMMA-2012. Latest news – 2 first places at EMMA Eurofinals in SQ and MM in March 2014.
APL1 is a FIR based 2 channel equalizer with 4096 coefficient FIR filters per channel allowing curve resolution of up to 6Hz. It is capable of creating any arbitary Amplitude Frequency Respone (AFR), Phase Frequency Response (PFR) or Delay Frequency Response (DFR) suitable for very detailed and accurate corrections and equalization in critical applications such as studio monitors, headphones and car audio systems.
USB connection allows the upload of correction filter files to APL1 unit even in the middle of a live performance without any disturbdances in sound. The unit can optionally have a 16 preset memory accessible trough an external, freely placeable rotary switch, excellent for car audio installations.
Specifications:
• Number of processing channels: 2
• Resolution: 48kHz/24bits, digital input - uptil 96kHz/24bits
• Frequency resolution of correction curve: 6 Hz, 4096 coefficients at 24 kHz bandwidth
• Inputs: 2 analog balanced, digital - SPDIF coaxial and TOSLINK optical, AES/EBU on order
• Outputs - 2 analog (XLR balanced), digital - SPDIF coaxial and TOSLINK optical, AES/EBU on order
• Input/output analog signal max levels: +10dBu (can be changed on order)
• Analog input/output connection types: RCA or XLR
• Analog input impedance: 10 kOhm
• Analog output impedance: 150 Ohm
• Common mode signal rejection (CMSR) of analog input – 90 dB
• Dynamic range (analog input/output):104 dBA.
• THD (analog input/output): 0,07%
• Signal delay: 1.6 ms (analog input/output), 2.4 ms (digital input/output)
• Control and upload interface: USB
• Interface computer system: Microsoft Windows
• Power: 6.5 to 16 V DC, 3.5 W.
• Dimensions 15х20х5.3 cm.
As I understand, it is not on ebay yet, but could be purchased from the company link. Any ideas?
Acoustic Power Lab :: Home
describing sound processors from the Acoustic Power Lab. Does anybody have any practical experience with it?
According to the manufacturer this device has won different competitions in Europe. Looks promissing, but seems to be lacking some smart features as bluetooth, crossover, etc. As I understand the philosofy of the company - to produce a really audiophile unit of minimalistic design comprising only what is neccesary to produce high sound quality.
The „Pro Sound News Europe” trade journal lists SPFR (sound/acoustic power frequency response) correction technology as one of the three leading innovations in the field in Europe. The invention was awarded the Excellence prize by the AES in New York, 2007. In 2010 the author developed an alternative technology version for application in car audio systems. The car equipped with that solution earned “best sound” at the Salzburg EMMA-2012. Latest news – 2 first places at EMMA Eurofinals in SQ and MM in March 2014.
APL1 is a FIR based 2 channel equalizer with 4096 coefficient FIR filters per channel allowing curve resolution of up to 6Hz. It is capable of creating any arbitary Amplitude Frequency Respone (AFR), Phase Frequency Response (PFR) or Delay Frequency Response (DFR) suitable for very detailed and accurate corrections and equalization in critical applications such as studio monitors, headphones and car audio systems.
USB connection allows the upload of correction filter files to APL1 unit even in the middle of a live performance without any disturbdances in sound. The unit can optionally have a 16 preset memory accessible trough an external, freely placeable rotary switch, excellent for car audio installations.
Specifications:
• Number of processing channels: 2
• Resolution: 48kHz/24bits, digital input - uptil 96kHz/24bits
• Frequency resolution of correction curve: 6 Hz, 4096 coefficients at 24 kHz bandwidth
• Inputs: 2 analog balanced, digital - SPDIF coaxial and TOSLINK optical, AES/EBU on order
• Outputs - 2 analog (XLR balanced), digital - SPDIF coaxial and TOSLINK optical, AES/EBU on order
• Input/output analog signal max levels: +10dBu (can be changed on order)
• Analog input/output connection types: RCA or XLR
• Analog input impedance: 10 kOhm
• Analog output impedance: 150 Ohm
• Common mode signal rejection (CMSR) of analog input – 90 dB
• Dynamic range (analog input/output):104 dBA.
• THD (analog input/output): 0,07%
• Signal delay: 1.6 ms (analog input/output), 2.4 ms (digital input/output)
• Control and upload interface: USB
• Interface computer system: Microsoft Windows
• Power: 6.5 to 16 V DC, 3.5 W.
• Dimensions 15х20х5.3 cm.
As I understand, it is not on ebay yet, but could be purchased from the company link. Any ideas?