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This ultra-high quality dedicated Headphone Amplifier creates simply amazing sound because it uses Current Feedback amplification technologies from Marantzʼs high-end Premium 11 Series. Headphones have always added extra intensity to music, now with the Marantz HD-DAC1 that intensity reaches new climactic heights. This completely new product category comes with a new design, but as always with the unmistakable Marantz family resemblance.
The powerful HD-DAC1 can drive audiophile high-impedance headphones up to 600 ohm - with complete MODE ease. All thanks to its three-level gain control, Marantz HDAM-SA2 modules, a high current audiophile DAC (CS4398), and its Premium Quality fixed and variable RCA outputs. It is so powerful it not only drives headphones, you can also directly connect it to your Hi-Fi integrated amplifier or to a pair of active speakers or power amps. Itʼs also highly connectable.
Optical and coaxial digital inputs as well as a USB-B port enable you to stream music directly from your PC or MAC; iDevices can also be connected via the USB port on the front. For even more connectivity we have also included an analog input. The USB-B works in asynchronous mode to support not only 192 kHz / 24bits high-resolution audio but also the DSD 2.8MHz and 5.6MHz for maximized performance and the most direct way to enjoy excellent quality. To safeguard quality when connected to a computer, we built extended isolation around the USB-B input to eliminate the chance of a high frequency noise being generated by the computer when entering the HD-DAC1. We even included a jitter remover and Dual Clock for extreme accuracy. Info on volume, input, resolution, etc. is shown on the stylish Marantz Porthole Display. The solid aluminum front is supported by a double layer bottom plate and retro-style side panels. Pure craftsmanship.
| Standby Consumption in W | 0.3 |
| Maximum Dimensions (W x D x H) in inches | 9.84 x 10.63 x 3.54 |
| The new HP4 from PreSonus answers the need for a headphone distribution
amplifier with professional specifications in a small package at an affordable
price. The HP4 features four discrete headphone outputs on the front panel
each with its own volume potentiometer and 150mW of amplification per channel.
The HP4 also features adjustment over control room monitors with a separate
volume control, monitor mute switch and mono switch giving you an extremely
powerful monitoring solution at an amazingly low price.
Features
? Four High Power Headphone Outputs
? Ultra loud (150mW per channel)
? Ultra quiet operation
? Musical Wide Dynamic Range
? Control Room Monitor Outputs with Level Control
? Mono or Stereo Operation
? Monitor Mute Switch
? Daisy Chain an Infinite Number of Units
? Compact package
Technical Specifications
Input
TRS Impedance 10K Ohms
Panel Controls
Headphone Level 1 to 12
Monitor / Feed Output -80dB to +10dB
Mono Switch
Monitor / Feed Mute
Power Supply
Type Linear
Input 16VAC/1000mA
Output
TRS Balanced 51 Ohms Impedance
Performance
THD+Noise (Unweighted) 0.002%
Noise Floor -98dB
Signal To Noise >95dB
Power Supply Rejection >98dB
Power 16 Watts
Physical
Weight 5lbs./ 2.3 kg.
Dimensions 5.5 x 5.5 x 1.75
Mounting Max Rack and Universal Rack Tray
Chassis Steel
Panel Brushed Aluminum
Sides Cast Aluminum |
HeadAMP - Four Output Stereo Headphone Amp Overview
Most home recordings involve from one to four people, any or all of whom are
going to need headphone monitoring. The monitor amp would be connected
to the tape deck?s headphone output or a mixer output so that the performers
can hear themselves and each other. Of course the same application can apply
to band rehearsals and even home entertainment. HeadAMP provides amplification
and individual volume control for up to 4 headsets. It can be driven by either line-
level or headphone amplifier signals (mono or stereo).
HeadAMP - Four Output Stereo Headphone Amp Specifications:
Signal To Noise Ratio >90dB
IMD (SMPTE) 0.01%
Maximum Input Level +14dBV
Maximum Output Level 20dB per channel
Output Impedance 51 Ohms per channel
Output Connectors Four stereo 1/4? headphone outputs
Power Requirements 12V DC (Adapter included)
Total Harmonic Distortion |
- All-passive volume control circuit
- Stereo and AUX inputs
- Dual outputs
- Additional mono output
- Balanced and unbalanced connection
- Integrated high quality headphone amplifier
- Mono, mute and PFL switches
- Stereo volume, AUX and headphone level controls
- Elegant design with solid wood side panels
- Built to last
The Palmer Monicon® L is a precise, analogue volume control that connects between a computer or audio interface and active monitor speakers. The switch is completely passive and distortion-free, the LED displays and built-in headphone amplifier are powered via the included power supply.
Symmetric combo sockets serve as stereo input. The Monicon® L’s AUX input features RCA sockets and a 3.5 mm stereo jack. The compact console offers outputs for two monitor pairs and a mono summed output via XLR sockets. The stereo or AUX input can be selected alternately, the two outputs individually and together. In addition to its large volume controller, the Monicon® L is also equipped with mono, mute and PFL switches, a 6.35 mm headphone output, and separate AUX and headphone controllers for convenient operation.
Product type
Other Studio and Recording Equipment
Channels
2
Inputs
2
Input connectors
3.5 mm TRS , RCA , XLR
Input type
balanced/unbalanced (depending on TS/TRS connection)
Max. input level
20 dBu
Input impedance
(balanced) 10k Ohm(s) , (unbalanced) 5k Ohm(s)
Outputs
3
Output connectors
XLR
Output type
balanced/unbalanced (depending on TS/TRS connection)
Max. output level
20 dBu
Output impedance
600 Ohm(s)
Frequency response
10 - 40000 Hz
THD
0.001 %
Max. attenuation
(Attenuator + Mute) 112 dB , (Attenuator) 85 dB
Controls
attenuation , input selector , mono , mute , output selector , PFL source
Cabinet material
sheet steel , wood
Cabinet surface
Powder coated
Width
218 mm
Height
77 mm
Depth
100 mm
Weight
1,14 kg | The VOX AMPLUG AC30 Guitar Headphone Amplifier, AC30 voicing. Plugs directly into your guitar, a great-sounding headphone guitar amp that gives you serious sound fast.
The VOX amPlug AC30 is your fastest ticket to great tone – anytime, anywhere! Jamming late at night? Donʼt want to wake the neighbours? Maybe you want to work out a lick with your MP3 player without taking the time to set up your amp. You want to play guitar right now. amPlug is the answer. Simply plug this palm-sized headphone guitar amp directly into your guitar, and enjoy serious guitar sound anywhere, anytime. VOX amPlug AC30 is based on a vintage VOX AC30. Even with its ultra-compact size, amPlug AC-30 perfectly reproduces the complex and warm distortion that is distinctive of a vacuum tube. Using all new analog modeling technology, amPlug delivers full-fledged amp sound. With its completely analog design, great care was also taken with amPlug's gain circuitry. The "AC30" uses two natural-sounding gain stages to reproduce the distinctive AC30 tone. Even the circuit response of the original amp is simulated completely. The simulation extends not only to the response of the tone circuits, but also to the way in which the high frequency and gain are affected when you turn down the volume control of the guitar. Every detail has been faithfully reproduced. With up to fifteen hours of battery life, it's easy to take amPlug anywhere. In addition to practicing at home, it's a great way to warm up before a live performance or on the road. And amPlug is not just a convenient way to get great guitar sound. There's also an AUX input jack so you can jam along with your CD/MP3 player.
The main features of the VOX AMPLUG AC30 include:
- Plugs directly into your guitar, a great-sounding headphone guitar amp that gives you serious sound fast
- AUX in jack lets you jam along with your CD/MP3 player
- 100% analog circuit faithfully simulates the response of the original amps
- AC30 emulates the AC30 top boost sound of a vintage VOX AC30
- Up to 15 hours of battery life with two Alkaline AAA batteries
- Quick and easy setup! Just connect amPlug to your guitar and enjoy serious sound
- Dimensions (W x D x H): 86 x 80 x 31 (mm), 3.39 x 3.15 x 1.22 inches
- Weight: 40g /1.41oz. (not including batteries)
- Included items: two AAA zinc-carbon batteries
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The PHDA02 - a reference class headphone amplifier with Stereo, Mono, and Dual Mono operation modes.
In Stereo mode, the L/R input signal is fed to the left and right earphones while the volume level is set by the Stereo/Left control. The front panel inputs provide simultaneous connection of two headphones in parallel. In Mono mode, the left and right channels are summed, and the resulting mono signal is fed to both the left and right earphones. Again, volume is governed by the Stereo/Left control. In Dual Mono mode, the left and right channels can be used independently with individual level controls for the left and right earphones.
The PHDA02 operates with all headphones with an impedance of 8 up to 200 Ohms. Impedance matching is achieved by a specially designed switchable transformer. Uncommon and costly, this solution provides superior performance, dynamic range, and signal-to-noise ratio at all loads.
Combo input sockets allow for balanced XLR and unbalanced TS headphone connection while parallel XLR outputs facilitate daisy chaining multiple units. The integrated power supply operates with mains from 100 VAC to 240 VAC.
The PHDA02 is equipped with low-noise op amps, and the output amplifiers' discrete power transistors are mounted on heatsinks. Dimensions are 1 U 9.5“.
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