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> Classifieds > > > Massdrop CTH + SDAC DAC/Amp


Item #649430562
Info: Massdrop CTH + SDAC DAC/Amp

Asking Price:
CAD $500.00
Retail Price: CAD $500.00
Payment method: Cash, Visa, Mastercard, Paypal, Interac/EMT
Ships to: Canada, United States
Condition: 10 - Mint (?)
Date Posted: Apr 16, 18 9:04 (PST)
Edited: Apr 16, 18 9:06
About Seller: MB, Canada
Product Brand: Cavalli Audio
Product Model: CTH + SDAC

Days in System:90

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Personal Sale - Impulse purchased this 2 weeks ago (drop is currently over) - looking for another AMP :)

Please add 3% PP fees (unless PP Gift or etransfer used) and $20 Shipping across canada

The Best of Both Worlds
The Massdrop CTH + SDAC DAC/amp brings two of the community’s favorite designers together in one affordable, easy-to-use package. It features the Massdrop x Alex Cavalli Tube Hybrid Amp (or CTH), built from the ground up by the founder of Cavalli Audio—a legend in the world of headphone amps. For the DAC section, it uses the Massdrop x Grace Design Standard DAC (or SDAC), a collaboration with a company long known for its incredibly accurate, transparent studio gear. The result is an all-in-one unit that measures objectively well and works with a variety of driver types and impedances, including all previous Massdrop over-ear headphones.

About the Massdrop x Grace Design Standard DAC

The Standard DAC sets a new standard in entry-level DACs. 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. It’s equipped with the new AKM AK4452 digital-to-analog conversion chip and can process the most common file types up to 24 bit/96 kHz with no harshness or edge and the kind of resolution and detail that’ll make you want to listen on and on. It runs off of USB bus power with plug-and-play operation, which means you won’t need drivers or any special software to get started.

About the Massdrop x Alex Cavalli Tube Hybrid Amp

This hybrid amp combines a solid state section, a tube amp section, and an entirely new circuit design. A complete revision of one of Cavalli’s early DIY designs, it delivers the current required by planar magnetics, along with the voltage drive that dynamic headphones need to perform their best. It’s quiet enough for sensitive headphones like the Massdrop x Fostex TH-X00 and powerful enough for higher-impedance headphones like the Massdrop x Sennheiser HD 6XX. With the supplied 6922 vacuum tube, the sound is smooth, natural, and resolving with precise detail and just a touch of tube character.

Technical details from Michael Grace
DAC Section

Massdrop x Grace Design
DAC chip: AKM AK4452
Audio formats: Up to 24 bit/96 kHz
Frequency response, 20Hz–20 kHz: +/-0.02 dB
THD+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 dBu
Dynamic range, A-weighted: >114 dB
Linearity, -90 dBFS: -0.07 dB
Crosstalk at 1 kHz, -10 dBFS (3.5mm jack): -102 dB
Sum of jitter components at 11,025 Hz, -1 dBFS: -133 dB
Maximum output: 2.15VRMS
USB controller: XMOS XU208-128-TQ64
Input: USB micro
Output: 3.5mm TRS
Power: USB Class 1 (no drivers required for Windows, Mac, or Linux)
Amp Section

Massdrop x Alex Cavalli
Frequency response: 20 Hz–20 kHz, -0.2 dB
Maximum power, 50 ohms: 1W Rms per channel
Output impedance: < 0.5 ohm at 1 kHz
THD: < 0.008%, 20 Hz–20 kHz 1 Vrms
THD: 0.0014% at 1 kHz, 1 Vrms with 50R load
IMD: 0.002% CCIF 1 Vrms
SNR: -97 dB, 20 Hz–20 kHz (1 Vrms into 45 ohms)
Crosstalk: -85 dv at 1 kHz
Topology: Capacitor-coupled tube hybrid using 6922 tube, single-ended
Gain: 8x (12 dB)
Input: RCA
Output: 4-pin XLR, ¼ in (6.3 mm) TRS headphone jacks
Protection: Delayed start with muting relay and DC offset detection
Power supply: Wall wart with 28V DC 1.25A
Power consumption: Maximum 35W (28V, 1.25A), ~9W idle

Chassis material: Anodized aluminum
Dimensions: 8.3 x 9.1 x 2.2 in (21 x 23 x 5.7 cm)

This ad was originally posted on Canuck Audio Mart Canuck Audio Mart and the seller ships to Canada, and the United States.


6922 dual-triode vacuum tube
Power supply
Cloth storage bag

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