DD-3 Digital Delay

Boss Offer Details

Created
Modified
Price
$248.62  
Seller
 
Region
EU  

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Description

Boss DD-3 Digital Delay 1987 s/n 792852 Blue Label. First Version with Long Chip, made in Japan in near mint condition. It has a large Hosiden Adaptor jack.The early DD-3 is the same pedal as the DD-2. Because of the price drop on DRAM in 1986 it was possible to produce the pedal much cheaper. Dropping the price didn't look so good so it was decided to re-release the DD-2 under the name DD-3 instead. The front of the pedal got a face lift with the re-release.Version differences There are 3 main versions of the DD-3. The first version was released 1986 but it was redisigned with a new DSP gate array chip December 1990. The new version was called DD-3A. The DC socket was at the same time replaced with the smaller PCB mounted type and this can be used to identify the version. The design change happened before production was moved from Japan to Taiwan so all DD-3s made in Taiwan are DD-3A or DD-3B versions. The latest version of the DD-3 was introduced August 2001 and is called DD-3B. The DD-3B uses a new type of DRAM as well as surface mounted components. The PCB layout is therefore radically changed compared to the DD-3A.DD-3Approx. Serial: 690000 - NC09999Marking of PCB: 2291088702Adaptor jack: Large HosidenMain Controller: Roland RDD63H101DRAM: HM4864P-3, M5K4164ANP or MSM3764-20RSDD-3ASerial ZC10000 - SO91199Marking of PCB: 2292098400Adaptor jack: small PCB MountedMain Controller: MN51010RBADRAM: M5M4464-L12DD-3BSerial SO91200 - presentMarking of PCB: 75D563P000Adaptor jack: small PCB MountedMain Controller: MN51010RBA BOS-008DRAM: M11B416256A-35J(T)SpecificationsControls: E.Level, F.Back, D.Time, 4-way Mode switchConnectors: Input, Output, Direct Out, AC AdaptorCurrent Draw: 55 mA (DC 9V, D.Time control at center)Weight: 450 g (0.99 lb.)A/D Conversion: 12-bit logarithmic compressionD/A Conversion: 12-bit logarithmic compressionInput Impedance: 1Mohm (FET Input)Residual Noise Level: -95dBm (IHF-A)Recommended Load Impedance: 10kOhm or greaterDelay Time: 12.5 to 800msRecommended AC Adaptor: PSA SeriesLabelsBlue - Made In JapanBlue - Made In TaiwanPink - Made In TaiwanDark Gray - Made In Taiwan

Boss DD-3 Digital Delay

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