Film & video
Metric Halo Mobile I/O ULN-2 2d Expanded +DSP with 2 Jensen Transformers
One-rack-space FireWire audio interface and mic preamp/converter by Metric Halo, part number 000-50006-2-JEN+DSP, with Jensen input transformers and on-board DSP.
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ULN-2 2d Expanded +DSP with two Jensen input transformers[1]
United States · supported
Evidence reviewed
Context, dates & evidence notes · Other observations
- Evidence observed
- 2026-09-25
- Model
- 000-50006-2-JEN+DSP
The configuration this barcode is listed for on Amazon.com and UPCitemdb.
Other observations & source differences (2)
Different sources or national labels can coexist. Differences alone do not establish a change to the product.
- ULN-2 2d Expanded +DSP with two Jensen input transformers supported · selected
The configuration this barcode is listed for on Amazon.com and UPCitemdb.
- Mobile I/O ULN-2 specification sheet supported · Compare evidence
Metric Halo's specification sheet for the ULN-2 with its standard capacitor-coupled inputs; the Jensen option changes the input stage.
Release facts
- Barcode
- 000888879644 check digit OK
- Brand
- Metric Halo
- Category
- Audio Visual/Photography, Audio Visual Equipment, Audio Visual Accessories, Analogue/Digital Converters
- Sold in
- 🇺🇸 United States[1]
- Model
- 000-50006-2-JEN+DSP
- Last observed on sale
- 2026-09-25
- Last sale evidence
- Amazon.com listing B000CPJ2AM still online under this barcode when read on 2026-09-25, with no offer price shown.
- GS1 prefix
- 000 · United States and Canada
- Status
- discontinued
Specifications
- Manufacturer part number
- 000-50006-2-JEN+DSP[1]
Conditions & original evidence
Recorded: 000-50006-2-JEN+DSP
known · printed
Model number and manufacturer part number on the Amazon.com listing.
- Input transformers
- Jensen transformers on both mic inputs[4]
Conditions & original evidence
Recorded: Jensen transformers on both mic inputs
known · printed
Factory-installed option replacing the capacitor coupling of the input stage; Metric Halo's prototype used a pair of Jensen JT16-A transformers.
- DSP
- Analog Devices SHARC 21065, 2 MB flash, 8 MB SDRAM[3]
Conditions & original evidence
Recorded: Analog Devices SHARC 21065, 2 MB flash, 8 MB SDRAM
known · printed
Configuration of the +DSP version reviewed in August 2004.
About this product
The Metric Halo Mobile I/O ULN-2 2d Expanded +DSP with two Jensen transformers is a one-rack-space FireWire audio interface and stand-alone mic preamp and converter from the American pro-audio maker Metric Halo, sold under part number 000-50006-2-JEN+DSP.[1] The ULN-2 provides four inputs and six outputs of simultaneous I/O with 24-bit/96 kHz conversion and two ultra-low-noise mic preamps with 72 dB of gain, and it runs from a laptop's FireWire bus or any 9 to 30 V DC source.[2] The +DSP version adds an on-board processor for Metric Halo plug-ins.[3] This configuration carries the factory-installed Jensen transformer option on both mic inputs, which Metric Halo says gives a more "glossy", "smoothed" sound and isolates the preamp electrically from the source.[4]
Metric Halo released the ULN-2 in 2002.[4] Sound On Sound reviewed the ULN2+DSP in August 2004, when the DSP version used an Analog Devices SHARC 21065 chip and the interface had Mac OS drivers only.[3] Metric Halo's current hardware range lists the ULN-8 mkIV, the LIO-8 mkIV, the LIO-8/4p mkIV and 3d card upgrades,[5] and its direct store sells a 3d card upgrade for legacy ULN-2 units.[6] The Amazon.com listing for this configuration was still online in September 2026.[1]
Where it's sold
- Amazon.com [1] United States Amazon.com listing "METRIC HALO ULN-2 2d +DSP w/2 Jensen Firewire Digital Audio Interface" (ASIN B000CPJ2AM, model 000-50006-2-JEN+DSP) prints UPC 000888879644 among four UPCs; no offer price was shown on the day read.
A listing is evidence that this barcode is sold there, on that date; a price is what that listing showed, not a recommended price. Store links may be affiliate links (how this works).
Reviews
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Sources & research
Evidence reviewed
Amazon.com
METRIC HALO ULN-2 2d +DSP w/2 Jensen Firewire Digital Audio Interface
retailer · Accessed 2026-09-25
Source & attribution [1] ↗Sound On Sound
Metric Halo ULN2+DSP (review by Derek Johnson)
publication · Accessed 2026-09-25
Source & attribution [3] ↗Coverage & research gaps (8)
Coverage measures the evidence recorded here. It does not rate the product.
- Identity: 3 / 3 · Name, brand and classification recorded
- Context: 2 / 2 · Evidence groups assigned to a researched label, edition or analysis
- Label photographs: 0 / 2 · Researched contexts with an assigned photograph
- Specifications: 8 / 16 · Recorded specifications mapped to comparable property keys
- relationships · unknown: GS1 prefix holder: Buycott names "Putnam, Inc." as the GS1 name for this UPC, and the same 0008888 block carries a Hugh Tracey kalimba (000888878845), so the block looks like a reseller's rather than Metric Halo's; the prefix length and holder are unsettled, so no gs1_prefix_owner row is written.
- identity · disputed: The Amazon.com listing carries four UPCs for one ASIN (832081000132, 000888879644, 008474921043, 832081000255); none of the others is recorded as an alias because no source ties it to this exact configuration.
- specifications · not_researched: Channel count of the 2d card's ADAT optical I/O and the input specifications of the Jensen-transformer version.
- images · unknown: No licensed front photo of this unit.
- markets · not_researched: Retail price of this configuration: the Amazon.com listing showed no offer.
- evidence · unknown: Evidence observation date is not recorded.
- images · not_researched: No product photographs recorded.
- schema · schema_gap: Some specifications retain source labels without comparable property keys.
All references & source details
References
- ↑ METRIC HALO ULN-2 2d +DSP w/2 Jensen Firewire Digital Audio Interface Amazon.com. retailer. Accessed 2026-09-25. Record: B000CPJ2AM.
- ↑ Metric Halo Mobile I/O ULN-2 Metric Halo. manufacturer. Accessed 2026-09-25. Features and technical specifications.
- ↑ Metric Halo ULN2+DSP (review by Derek Johnson) Sound On Sound. publication. Published 2004-08. Accessed 2026-09-25.
- ↑ Introducing the Jensen Transformer option for ULN-2 Metric Halo. manufacturer. Accessed 2026-09-25.
- ↑ Metric Halo: Products Metric Halo. manufacturer. Accessed 2026-09-25. Hardware list.
- ↑ Metric Halo Direct: 3d Card for ULN-2 Legacy Metric Halo. manufacturer. Accessed 2026-09-25.
Further sources
Additional sources recorded for this entry, including other observations and related pages.
- UPC 000888879644 - Metric Halo Mobile I/O ULN-2 Expanded +DSP FireWire UPCitemdb. catalogue. Accessed 2026-09-25. Record: 000888879644.
- Metric Halo Relocates To Sun-Drenched Florida Metric Halo. manufacturer. Published 2011-12. Accessed 2026-09-25.
Barcode & identifiers
- GTIN-14
00000888879644- EAN-13 / GTIN-13
0000888879644- UPC-A / GTIN-12
000888879644
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