DROP Mass CTH + SDAC DAC/Amp — Alex Cavalli Hybrid Tube Amp + Grace Design Standard DAC — 4-pin XLR and 6.3mm TRS Jacks, Black

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

MASSDROP ALEX CAVALLI CTH — 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

MASSDROP X GRACE DESIGN STANDARD DAC (or SDAC) — 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

OUT OF THIS WORLD RESULTS — 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

KEY MEASUREMENTS — Input RCA USB Micro Output 3 5mm TRS 4-pin XLR 1/4 in (6 35 mm) Power 110V AC Adapter Dimensions 8 3 x 9 1 x 2 2 in

Included Components: Cloth Storage Bag

Retail Price: $ 251.84

Wholesale Price: Inquire Now

Massdrop x Alex Cavalli Amp amplifier SDAC DAC audio headphone desktop tube vacuum XLR

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.

SPECS: 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)

SPECS: 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

Physical

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


	Massdrop X Alex Cavalli CTH	Massdrop x Alex Cavalli Liquid Carbon X AMP	Massdrop CTH + SDAC DAC/AMP	Massdrop Liquid Carbon X + SDAC DAC/Amp	DROP + THX AAA 789 Linear Amplifier	Massdrop Objective 2 Headphone AMP: Desktop Edition
Component Type:	Compact Tube Hybrid Amp	Solid-State Amp	Compact Tube Hybrid Amp + SDAC DAC	Solid-State Amp + SDAC DAC	THX Achromatic Audio Amplifier	Desktop Amplifier
Frequency response:	20 Hz–20 kHz, -0.2 dB		20Hz–20 kHz: +/-0.02 dB	20Hz–20 kHz: +/- 0.02 dB	+ 0.01 dB / - 0.03 dB 20 Hz–20 kHz; + 0.05 dB / - 0.15 dB 10 Hz–50 kHz	+/-0.1 dB (20 Hz–20 kHz)
Maximum power:	50 ohms: 1W Rms per channel	Balanced 2.8W RMS into 50 ohms, single-ended 0.7W RMS into 50 ohms	50 ohms: 1W Rms per channel	Balanced 2.8W RMS into 50 ohms, single-ended 0.7W RMS into 50 ohms	Balanced: (16 ohms): 6000 mW - (600 ohms): 400 mW. Sindle-Ended: (16 ohms): 3000 mW - (600 ohms): 100 mW	(33 ohms): 613 mW - (600 ohms): 88 mW
Output impedance:	< 0.5 ohm at 1 kHz	~0.12 ohm balanced, ~0.08 ohm single-ended	< 0.5 ohm at 1 kHz	~0.12 ohm balanced, ~0.08 ohm single-ended	Balanced: < 0.1 ohms / Single-Ended: < 0.05 ohms	0.54 ohms
Gain:	8x (18 dB)	1x (0 dB) and 3x (10 dB), hot switchable from front panel	8x (12 dB)	1x (0 dB) and 3x (10 dB), hot switchable from front panel	Balanced: 0.66x , 2.0x, 6.6x (-4, +6, +16 dB) / Single-Ended: 0.33x , 1.0x, 3.3x (-10, 0, +10 dB)	2.5x and 6.5x / 1.0x and 3.3x (select your configuration)
Input:	RCA	1 x XLR (balanced), 1 x RCA	DAC: USB Micro; Amp: RCA	DAC: USB micro; AMP: 1 x XLR (balanced), 1 x RCA	Stereo XLR-3 gold-plated Neutrik; Stereo RCA gold-plated	RCA
Outputs:	Output: 4-pin XLR, ¼ in (6.3 mm) TRS headphone jacks	1 x 4-pin XLR, 1 x ¼ in (6.3 mm) TRS headphone jacks	DAC: 3.5mm TRS; Amp: 4-pin XLR, 1/4 in (6.3 mm) TRS headphone jack	DAC: 3.5mm TRS; AMP: 1 x 4-pin XLR, 1 x ¼ in (6.3 mm) TRS headphone jacks	1/4 in (6.35 mm) TRS gold-plated Neutrik; 3.5 mm TRS gold-plated; XLR-4 balanced gold-plated	6.35 mm
Power Supply:	Wall wart with 28V DC 1.25A: Switching power supply that handles 100–240 VAC (add plug adapter for your country’s outlet)	Switching power supply that handles 100–240 VAC (add plug adapter for your country’s outlet)	Wall wart with 28V DC 1.25A	Switching power supply that handles 100–240 VAC (add plug adapter for your country’s outlet)	24 VDC inline brick, universal input 100–240 VAC	Battery (not included) or AC adapter (included, select 110V or 220V)
Dimensions:	8.3 x 9.1 x 2.2 in / (210 x 230 x 57 mm)	8.3 x 9.1 x 2.2 in / (210 x 231 x 56 mm)	8.3 x 9.1 x 2.2 in / (210 x 231 x 57 mm)	8.3 x 9.1 x 2.2 in / (210 x 231 x 57 mm)	8.3 x 9.1 x 2.2 in / (210 x 230 x 57 mm)	4.12 x 3.87 x 1.12 in / (105 x 98 x 29 mm)
Weight:	3.6 lbs (1,625 g)	3.6 lbs (1,625 g)			3.4 lbs (1,520 g)	9 oz (255 g)

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DROP Mass CTH + SDAC DAC/Amp — Alex Cavalli Hybrid Tube Amp + Grace Design Standard DAC — 4-pin XLR and 6.3mm TRS Jacks, Black

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Product introduction

Shipping Notices

The best of both worlds the massdrop CTH + SD AC DAC/amp brings two of the community 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 SD AC) 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 SD AC 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

From the manufacturer

THE BEST OF BOTH WORLDS

ABOUT THE MASSDROP X GRACE DESIGN STANDARD DAC

ABOUT THE MASSDROP X ALEX CAVALLI TUBE HYBRID AMP:

SPECS: 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)

SPECS: 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

Physical

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


	Massdrop X Alex Cavalli CTH	Massdrop x Alex Cavalli Liquid Carbon X AMP	Massdrop CTH + SDAC DAC/AMP	Massdrop Liquid Carbon X + SDAC DAC/Amp	DROP + THX AAA 789 Linear Amplifier	Massdrop Objective 2 Headphone AMP: Desktop Edition
Component Type:	Compact Tube Hybrid Amp	Solid-State Amp	Compact Tube Hybrid Amp + SDAC DAC	Solid-State Amp + SDAC DAC	THX Achromatic Audio Amplifier	Desktop Amplifier
Frequency response:	20 Hz–20 kHz, -0.2 dB		20Hz–20 kHz: +/-0.02 dB	20Hz–20 kHz: +/- 0.02 dB	+ 0.01 dB / - 0.03 dB 20 Hz–20 kHz; + 0.05 dB / - 0.15 dB 10 Hz–50 kHz	+/-0.1 dB (20 Hz–20 kHz)
Maximum power:	50 ohms: 1W Rms per channel	Balanced 2.8W RMS into 50 ohms, single-ended 0.7W RMS into 50 ohms	50 ohms: 1W Rms per channel	Balanced 2.8W RMS into 50 ohms, single-ended 0.7W RMS into 50 ohms	Balanced: (16 ohms): 6000 mW - (600 ohms): 400 mW. Sindle-Ended: (16 ohms): 3000 mW - (600 ohms): 100 mW	(33 ohms): 613 mW - (600 ohms): 88 mW
Output impedance:	< 0.5 ohm at 1 kHz	~0.12 ohm balanced, ~0.08 ohm single-ended	< 0.5 ohm at 1 kHz	~0.12 ohm balanced, ~0.08 ohm single-ended	Balanced: < 0.1 ohms / Single-Ended: < 0.05 ohms	0.54 ohms
Gain:	8x (18 dB)	1x (0 dB) and 3x (10 dB), hot switchable from front panel	8x (12 dB)	1x (0 dB) and 3x (10 dB), hot switchable from front panel	Balanced: 0.66x , 2.0x, 6.6x (-4, +6, +16 dB) / Single-Ended: 0.33x , 1.0x, 3.3x (-10, 0, +10 dB)	2.5x and 6.5x / 1.0x and 3.3x (select your configuration)
Input:	RCA	1 x XLR (balanced), 1 x RCA	DAC: USB Micro; Amp: RCA	DAC: USB micro; AMP: 1 x XLR (balanced), 1 x RCA	Stereo XLR-3 gold-plated Neutrik; Stereo RCA gold-plated	RCA
Outputs:	Output: 4-pin XLR, ¼ in (6.3 mm) TRS headphone jacks	1 x 4-pin XLR, 1 x ¼ in (6.3 mm) TRS headphone jacks	DAC: 3.5mm TRS; Amp: 4-pin XLR, 1/4 in (6.3 mm) TRS headphone jack	DAC: 3.5mm TRS; AMP: 1 x 4-pin XLR, 1 x ¼ in (6.3 mm) TRS headphone jacks	1/4 in (6.35 mm) TRS gold-plated Neutrik; 3.5 mm TRS gold-plated; XLR-4 balanced gold-plated	6.35 mm
Power Supply:	Wall wart with 28V DC 1.25A: Switching power supply that handles 100–240 VAC (add plug adapter for your country’s outlet)	Switching power supply that handles 100–240 VAC (add plug adapter for your country’s outlet)	Wall wart with 28V DC 1.25A	Switching power supply that handles 100–240 VAC (add plug adapter for your country’s outlet)	24 VDC inline brick, universal input 100–240 VAC	Battery (not included) or AC adapter (included, select 110V or 220V)
Dimensions:	8.3 x 9.1 x 2.2 in / (210 x 230 x 57 mm)	8.3 x 9.1 x 2.2 in / (210 x 231 x 56 mm)	8.3 x 9.1 x 2.2 in / (210 x 231 x 57 mm)	8.3 x 9.1 x 2.2 in / (210 x 231 x 57 mm)	8.3 x 9.1 x 2.2 in / (210 x 230 x 57 mm)	4.12 x 3.87 x 1.12 in / (105 x 98 x 29 mm)
Weight:	3.6 lbs (1,625 g)	3.6 lbs (1,625 g)			3.4 lbs (1,520 g)	9 oz (255 g)

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