JDS Labs O2 amplifier and ODAC standalone digital audio converter. These are the original versions released in 2012. Excellent pre-owned condition. Includes original Triad AC adapter and USB cable.

Listing Includes: O2 Headphone Amp AC power adapter rca cables 2 9v rechargeable batteries (installed) Grace Designs SDAC usb cable MASSDROP OBJECTIVE 2 HEADPHONE AMP: DESKTOP EDITION In 2011, audio engineer NwAvGuy published a blog post titled “O2 Headphone Amp,” in which he outlined his philosophy on defining sound quality and detailed his ideal audiophile circuit design. Our version of NwAvGuys famous O2 amplifier, the Objective 2 Desktop Edition features updates based on feedback from the community. It’s an ideal baseline reference amplifier, capable of powering everything from IEMs to HD 800s with linear ease. SPECSInput: RCA Output: 6.35 mm Power: Battery (included) or AC adapter (included)Gain: 2.5x and 6.5x / 1.0x and 3.3x (select your configuration)Volume potentiometer taper: Alps 15A or 3BFrequency response: +/-0.1 dB (20 Hz–20 kHz)THD at 1 kHz, 150 ohms: 0.0016%IMD CCIF at 15 ohms: 0.001%IMD SMPTE: 0.002%Noise (ref 400 mV): -105 dBMax output (33 ohms): 613 mWMax output (150 ohms): 355 mWMax output (600 ohms): 88 mWOutput impedance: 0.54 ohmsCrosstalk (15 ohms): -65 dBChannel balance (50% volume): 0.6 dBCase dimensions: 4.12 x 3.87 x 1.12 in (10.46 x 9.82 x 2.85 cm)Weight: 9 oz (255 g)INCLUDED110V AC adapter 2 - 9v rechargeable batteries (installed) RCA Cable MASSDROP X GRACE DESIGN STANDARD DAC Made in collaboration with Grace Design, a company known for its incredibly accurate, transparent studio gear, the Standard DAC sets a new standard in entry-level DACs. It applies Grace Design’s pro-audio expertise to a simpler, more accessibly priced model that makes a great addition to any home or office system. Designed with the objectivist audiophile in mind, the SDAC delivers objectively good performance meant to meet or exceed the measurements of the popular ODAC while retaining many of its other benefits. Compact, capable, and easy to use, it could be all the DAC you need. SPECSMassdrop x Grace DesignChassis material: Anodized aluminumDAC chip: AKM AK4452Audio formats: Up to 24 bit/96 kHzFrequency response, 20Hz–20 kHz: +/-0.02 dBTHD+N at 20 Hz -0.15 dBFS: 0.0013%THD+N at 100 Hz, -0.15 dBFS: 0.0013%THD+N at 10 kHz, -0.15 dBFS: 0.0024%IMD CCIF, -6.03 dBFS, 19/20kHz, 24/96k: 0.0005%IMD SMPTE -6 dBFS, 24/96k: 0.0015%Noise, A-weighted: -105 dBuDynamic range, A-weighted: >114 dBLinearity, -90 dBFS: -0.07 dBCrosstalk at 1 kHz, -10 dBFS (3.5mm jack): -102 dBSum of jitter components at 11,025 Hz, -1 dBFS: -133 dBMaximum output: 2.15VRMSUSB controller: XMOS XU208-128-TQ64Inputs: USB microOutput: ? in (3.5 mm) TRS, RCAPower: USB Class 1 (no drivers required for Windows, Mac, or Linux)Dimensions, L x W x H: 3.9 x 4.1 x 1.2 in (100 x 104 x 30 mm)Length with RCA port: 4.2 in (105.5 mm)Height with rubber feet: 1.4 in (34 mm)Weight: 7.44 oz (210.8 g)

Used JDSLABS objective2 + ODAC Combo Headphone AMP and DAC Missing power adapter, otherwise works fine https://jdslabs.com/product/14vac-power-adapter/ 14vac or 15vac power adapter needed

Zustand wie neu. Das Gerät ist voll funktionsfähig, verfügt über eine integrierte USB Soundkarte und der Verstärker ist bestens für 250 und 600 Ohm Kopfhörer geeignet. Kristallklarer und satter Sound !

Used - Good Condition Comes as is, power brick not included. Message me for any questions!

This is a combination of the original production run of JDSLabs ODAC revB and O2 Amplifier. I believe these units are no longer in production. Purchased on Drop.com 8 years ago, flawlessly running since then. Hundreds of hours of burn-in time. Note the adapter for the amp could use some love, as it’s taped closed right now. Volume pot occasionally scratches on the amp as well. Overall would say these are in “good condition”, totally working with many years of service to go. Will include RCA cables, USB cable, and charger alongside both units.

Ich biete meinen Objektive O2 DAC in ausgezeichnetem Zustand. Tauchen Sie ein in die Welt präziser Audiowiedergabe mit diesem hochwertigen Gerät. Sorgfältig gepflegt und ohne Defekte. Ideal für audiophile Enthusiasten, die höchste Klangqualität schätzen. Bei Interesse stehe ich gerne für weitere Details zur Verfügung. Headphone Amplifier Section Frequency Response: +0.01, -0.01 dB (20Hz-20kHz) Gain: 2.5x and 6.5x Output Impedance: 0.5 ohm Volume Potentiometer Taper: 15A Case Dimensions: 108.50 x 80.00 29.50 x mm (excludes knobs/buttons) Weight: 11 oz DAC Section Audio Formats: 16/44, 16/48, 16/96, 24/44, 24/48, 24/96 Frequency Response: +/- 0.1 dB (10 hz – 19 Khz 24/44) THD+N 100 hz 0 dBFS: 0.0029% THD+N 20 hz –1 dBFS: 0.003% THD+N 10 Khz –1 dBFS: 0.003% IMD CCIF 19/20 Khz –3 dBFS: 0.0011% IMD SMPTE –1 dBFS: 0.0004% A Noise A-Weighted dBu 24/44: --102.8 dBu Dynamic Range: > 110 dB A-Weighted Linearity Error -90 dBFS 24/44: 0.0 dB Crosstalk 0 dBFS Line Out 100K: --93.5 dB USB Jitter 11025 hz J-test 24/44: Excellent Maximum Output Line Out 100K: 2.0 Vrms Distortion: < 0.005%

Ich verkaufe einen Hifi-Kopfhörerverstärker und Digital-Analogwandler O2 + ODAC. Es handelt sich um ein Gerät der Spitzenklasse, welches damals Entwickelt wurde um die objektiv bestmögliche Wiedergabequalität zu erreichen. Kenner wissen Bescheid, alle anderen sollten danach googeln! Es handelt sich um das Kombo-Gerät aus Verstärker und DAC, welches damals mit folgenden Spezifikationen bei HeadnHifi in der Schweiz bestellt wurde: - Back Panel Color: Black - Case Color: Black - Front Panel Color: Black - Volume Knob: Aluminum Black - Gain Settings: Standard (2.5x/6.5x) - Power supply: EU Plug Es handelt sich um das professionell aufgebaute Model (und nicht um die Selbstbauversion). Das Gerät ist in sehr gutem Zustand ohne sichtbare Mängel. Es funktioniert und klingt auch noch wie am ersten Tag. Das Netzteil und das originale USB-Kabel sind ebenfalls im Lieferumfang enthalten. Es handelt sich um einen Privatverkauf ohne Gewährleistung und Rücknahme. Wir sind ein tiefreier Nichtraucherhaushalt.

Biete meinen Kopfhörerverstärker DAC Objective2 JDS Labs Distributed by Headnhifi mit USB Anschluss.Kleines aber sehr feines und hervorragend klingendes Gerät. Immer zuverlässig hatte nie Probleme. Damaliger Neupreis 189.- Euro Lieferumfang: Head Amp , Netzteil , USB Kabel. DHL Versand versichert 6 Euro Privatverkauf somit keine Garantie und keine Rücknahme.

Biete meinen Kopfhörerverstärker DAC Objective2 JDS Labs Distributed by Headnhifi mit USB Anschluss.Kleines aber sehr feines und hervorragend klingendes Gerät. Immer zuverlässig hatte nie Probleme. Lieferumfang: Head Amp , Netzteil , USB Kabel. DHL Versand versichert 6 Euro Privatverkauf somit keine Garantie und keine Rücknahme.

This is a fantastic sounding headphone amplifier and dac. I’ve used it with Sennheiser HD-650 and HiFi Man planar headphones as my go to choices. The amplifier has a very smooth and musical quality with ample power to drive power hungry headphones like the Sennheiser. There is less than 100 hours of use on the tubes plus the 2 additional sets provided fun tube rolling experience. This Little Dot MK III OTL Vacuum Tube headphone Amplifier with JDS Labs ODAC is perfect for those who want to enhance their audio experience. With two channels, one input and two outputs, this black and silver amplifier is ideal for any music lover. The stereo L/R RCA audio inputs and outputs, along with a headphone jack, ensure that you can use this amplifier with a variety of devices. This tube amplifier is made by Little Dot and is a model MK III. It is an amplifier class A product and was manufactured in China. The product is ideal for people who are looking for a high-quality audio experience without any compromise. Included in auction - JDS Labs Objective 2 ODAC for use with computer and digital sources. - 2 additional sets of Russian preamp tubes for personalized tube rolling to tailor the sound to your personal preference. This amp is in excellent condition and has less than 100 hours of use on it. - All cables and Odac power supply included.

Hallo,Ich verkaufe hier meinen Hifiman Sundara Planar Magnetic Kopfhörer, sowie ein Mayflower Objective DAC(ODAC). Der Kopfhoerer wurde im Maerz diesen Jahres bei Amamzon gekauft und ist in einem sehr guten Zustand. Bei Fragen stehe Ich gerne zur Verfuegung.

Objective 2 + ODAC (D/A-Wandler), Kopfhörerverstärker, schwarz, wie NEUDer Objective 2 ODAC mit D-/A-Wandler wurde so gut wie nicht benutzt und ist die hochwertige Version des Objektive 2 ODAC von „Head n Hifi“ inkl. D/A-Wandler. In vielen Fach- und Insiderkreisen wird dieser Kopfhörerverstärker inkl. ODAC (D/A-Wandler) im Klang mit Referenz/Weltklasse-Niveau eingestuft und den teuersten Kopfhörerverstärker am Markt klanglich gleichgestellt wird.Hier die einmalige Chance diesen hochwertigen und klanglich hervorragenden Kopfhörerverstärker im neuwertigen Zustand zu ersteigern.Lieferumfang:Objektive 2 Kopfhörerverstärker inkl. ODAC (D/A-Wandler, Farbe schwarz USB-Kabel Anschlusskabel Netzteil Privatverkauf, keine weiteren Gewährleistungsansprüche, keine Rücknahme Tier- und Nichtraucherhaushalt Versandkosten (6€ - nur Inland)

Selling the following DAC and AMP from Massdrop: Massdrop Objective 2 Headphone Amplifier, Desktop Edition Massdrop x Grace Design Standard DAC Like the headphones in the other listing, have been sitting on my desk pretty much unused. Both long sold out. ***Please note the model number is incorrect. I dont know what it is but eBay doesnt have a MassDrop option***

Selling the following DAC and AMP from Massdrop: Massdrop Objective 2 Headphone Amplifier, Desktop Edition Massdrop x Grace Design Standard DAC Like the headphones in the other listing, have been sitting on my desk pretty much unused. Both long sold out. ***Please note the model number is incorrect. I dont know what it is but eBay doesnt have a MassDrop option***

Objective2+ODAC Combo in very good condition with no scratches. The sound of this amplifier is very good and neutral. The gain is (3.3x/1x). This model comes with the power supply port on the back for better cable organization. Im selling it because I changed to a portable alternative. Unit is comprised of a Massdrop Objective 2 Headphone Amp with a Mayflower ODAC inside. Includes :Objective2 + ODAC ComboPower brick (12VAC)6.35mm to 3.5mm audio jack adapterMicro-usb to usb cable (I can also include a usb extension cable if needed) Input: micro USB (dac) or RCA (amp only)Output: 6.35 mm Power: AC adapter (included)Gain: 1.0x and 3.3xFrequency response: +/-0.1 dB (20 Hz–20 kHz)THD at 1 kHz, 150 ohms: 0.0016%IMD CCIF at 15 ohms: 0.001%IMD SMPTE: 0.002%Noise (ref 400 mV): -105 dBMax output (33 ohms): 613 mWMax output (150 ohms): 355 mWMax output (600 ohms): 88 mWOutput impedance: 0.54 ohmsCrosstalk (15 ohms): -65 dBChannel balance (50% volume): 0.6 dBCase dimensions: 4.12 x 3.87 x 1.12 in (10.46 x 9.82 x 2.85 cm)

JDS Labs O2 (Objective 2) Headphone Amplifier & OL DAC USB edition in good condition. Comes with power cords, RCA-to-headphone jack cable, and a USB cable. Thanks for looking!

This is a listing for both a JDS Labs OL DAC and the O2 Headphone Amplifier. Only power adapters are included, there are no additional cables. These units have cosmetic damage such as the paint scratching seen in the photos. They are both fully functional and tested. OL DAC Specification: DAC Performance Frequency Response 10Hz-20kHz (96k) +/- 0.15dB THD+N 20Hz-20kHz < 0.001% IMD CCIF 19/20 kHz -6.03 dBFS 0.00033% IMD SMPTE -6.03 dBFS 0.00031% Noise (A-Weighted) -109 dBu Dynamic Range (A-Weighted) 114 dB Linearity Error -90 dBFS +/-0.01 dB Crosstalk -10 dBFS 100K RCA -108 dB USB Jitter Components 11025Hz -116 dB PCB Stackup 4 Layers Maximum DAC Line-Output, 100K 2.00 VRMS Dimensions Case Dimensions 4.27 x 3.15 x 1.16 in Weight 13 oz Data Support Audio Formats (USB) 16/44.1kHz thru 24/96kHz USB Interface USB Audio Class 1 (UAC1) USB Driver OS Support Windows XP/7/8/10, PS4, OS X, iOS, Linux Connectivity Digital Inputs USB DAC Line-Output RCA O2 Headphone Amplifier: Performance Frequency Response +/-0.1 dB (20Hz-20kHz) THD 1 Khz 150 Ohms 0.0016% IMD CCIF 15 Ohms 0.001% IMD SMPTE 0.002% Noise (ref 400 mV) -105 dB Max Output (33 Ohms) 613 mW Max Output (150 Ohms) 355 mW Max Output (600 Ohms) 88 mW Output Impedance 0.54 ohms Crosstalk (15 ohms) -65 dB Channel Balance (50% volume) 0.6 dB Dimensions Case Dimensions (mm) 108.50 x 80.00 x 29.50 Case Dimensions (in) 4.27 x 3.15 x 1.16 Weight 11oz Connectivity Input RCA Output 6.35mm (1/4) 14-20VAC Configuration Gain 2.5x and 6.5x Volume Potentiometer Taper Alps 15A

JDS Labs O2 (Objective 2) Headphone Amplifier & OL DAC USB edition in good condition. Comes with power cords, RCA-to-headphone jack cable, and a USB cable. Thanks for looking!

Selling the following DAC and AMP from Massdrop: Massdrop Objective 2 Headphone Amplifier, Desktop Edition Massdrop x Grace Design Standard DAC Like the headphones in the other listing, have been sitting on my desk pretty much unused. Both long sold out. ***Please note the model number is incorrect. I dont know what it is but eBay doesnt have a MassDrop option***