PALMER PHDA02 Pro PHDA 02 – Reference Class Headphone Amplifier – 1-channel

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“.

Plug In, Rock Out with the Joe Satriani amPlug headphone amp

The Joe Satriani signature model is the latest addition to our incredibly popular amPlug series of headphone guitar amps!

• Joe's signature lead tone with your choice of delay on or off

• Distortion tone with superb dynamic response, inspired by the Satchurator

• Analog-style delay with Joe's filter & EQ, inherited from the Time Machine

• Plugs straight into your electric guitar, so you can instantly enjoy great sound through your headphones

• Convenient and portable with up to 11 hours of battery operation

• AUX input jack lets you jam along to tunes on your CD/MP3 player

The amPlug series of palm-sized headphone guitar amps make it easy to enjoy great guitar/bass sounds at home, in your room, or anywhere. This lineup is now joined by the amPlug Joe Satriani signature model, which borrows freely from the VOX/Joe Satriani line of signature pedal effects.

• Power supply: AAA batteries (x 2)

• Battery life (FX on):
  Zinc-carbon batteries: approximately 3 hours
  Alkaline batteries: approximately 11 hours

• Dimensions (W x D x H): 86 x 80 x 31mm/3.39" x 3.15" x 1.22"

• Weight: 40 g/1.41 oz. (not including batteries)

• Included items: Two AAA batteries (for verifying operation)

The amPlug Twin rolls back the years to capture the sound of the legendary clean American dual speaker combo tube amp. Noted for its sparkling and sustained clean sound, this amp has been is widely used in many genres - rock, blues, jazz, country, and more. Raising the gain provides a powerful American tube overdrive sound. A stereo chorus effect is built into the amPlug Twin, adding natural spaciousness and depth to the sound. As you play these sounds, you're sure to forget the passage of time, and lose yourself in the tones loved by musicians in styles such as jazz, country, and blues.
Specifications

• Controls: Gain, Tone, Volume; STANDBY/ON/FX switch
• Terminals: PHONES Jack (stereo), AUX In Jack (stereo)
• Power supply: AAA batteries (x 2)
• Battery life: amPlug Twin (FX on):
• With zinc-carbon batteries: approximately 3 hours
• With alkaline batteries: approximately 11 hours
• Dimensions (W x D x H): 86 x 80 x 31mm/3.39" x 3.15" x 1.22“
• Weight: 40 g/1.41 oz. (not including batteries)
• Included items: AAA batteries (X2) (for verifying operation)

The compact HX-3 Headphone Distribution Amplifier is the perfect accessory to quickly provide three high-performance stereo headphone feeds with individual level controls from line-level sources. The HX-3 can produce very high headphone levels with extremely low noise and distortion.

Great for radio, television, film, and music production applications, the battery-powered HX-3 accepts balanced XLR line-level inputs or unbalanced 1/4-inch and 1/8-inch stereo inputs. Its 1/4-inch loop-out can connect multiple HX-3's for additional headphone outputs. Headphones are connected to panel-mounted 1/4-inch stereo connectors.

The HX-3 has a durable aluminum chassis to withstand the punishment of field and studio environments. The unit is powered by inexpensive batteries (two-AA) or external 5-18 VDC.

The HX-3 can add headphone outputs to the 552, 302, MixPre-D, MM-1, and USBPre-2.

• Three isolated headphone outputs with individual volume controls.
• 125 dB dynamic range with flat frequency response.
• Durable 1/4-inch connectors, panel mounted for strength.
• Stereo or mono monitoring.
• Peak LED indicates headphone overload.
• Two balanced XLR line level inputs or unbalanced 1/4-inch and 1/8-inch stereo inputs.
• Loop Output to connect additional HX-3's in series.
• All-metal connectors solidly mounted to the chassis for durability and RF immunity.
• Free from "Pin-1" grounding problems.
• Internal battery-power for up to 18 hours from two AA alkaline batteries.
• Chassis-isolated 5 to 18 VDC input for easy external DC powering.
• Power LED indicates low battery power.
• High strength, extruded aluminum chassis with protective metal end panels.

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