The EF2 is a "big little amp", and even at $300 to 400 I would recommend it to others - yet at $189 it is a steal -- Comment from HeadphoneAddict at www.head-fi.org
The ART HeadAMP is an 8 output (4-channel) stereo headphone amp designed for use in home, project or professional studios. If you want more control over your own levels this is the tool for you. Whatever the application, it will come in very handy. ART HeadAMP4 Headphone Amplifier Features 4 Output Channels Each with Individual Volume Control Stereo 1/4-inch and 1/8-inch Inputs (Wired Parallel) Can be Connected to Any Line-Level Source or Headphone Output Four Stereo 1/4-inch and Four 1/8-inch Headphone Outputs Power "On" LED The HeadAmp4 offers 1/8th-inch as well as 1/4-inch inputs and outputs as well as lower noise, lower distortion and more output in a new custom extruded stackable metal case. Ideal for virtually any home or project studio, the ARTcessories HeadAmp4 easily adds additional headphone outputs to any mixer, computer audio interface, workstation, iPod, media player or laptop without creating any additional load on the existing headphone source. Individual level controls for the four headphone outs, 1/4-inch and now 1/8-inch (stereo minijack) connections allow the HeadAmp4 to connect to virtually any source, and drive any headphone configuration including studio phones, in-ear monitors or custom ear pieces or any combination of the above.
BEHRINGER POWERPLAY PRO-XL HA4700 4-Channel High-Power Headphones Mixing and Distribution Amplifier Professional, multi-purpose headphones amplifier system for stage and studio applications Highest sonic quality with virtually all types of headphones gt;8 Ohms even at maximum volume 4 independent high-power amplifier sections provide up to four stereo mixes with individual balance controls Each input/aux section can be separately adjusted for 'more me' mixing Stereo Aux input for each channel allows you to mix in any instrument or sound source Multi-functional Stereo/2-Channel switch on each channel allows for either stereo playback or double mono operation Ultra-musical High and Low EQ per channel for perfect sound adaptation Output level control with accurate 8-digit LED output meter per channel Left/right Mute switches for each channel allow two different mixes in mono mode 1 front and 2 rear TRS output connectors per channel Direct front panel input connector for easy connection of any sound source Parallel Main outputs allow cascading of several headphones amplifiers Servo-balanced inputs and outputs on 1/4" TRS and gold-plated XLR connectors Toroidal transformer for lowest noise interference and highest audio quality High-quality components and exceptionally rugged construction ensure long life Conceived and designed by BEHRINGER Germany An articulate headphone mix can make a tremendous difference to the outcome of a recording session. The four-channel BEHRINGER HA4700 features superior performance, routing and mixing functions to accommodate the most discerning set of ears. When a conditioned mix has to reach multiple listeners, the HA4700 delivers in style. Altogether Now The HA4700 offers four high-power amplifiers that can drive loads down to 8 Ohms. Each amplifier features its own two-band EQ, 8-digit LED output meter, left and right MUTE switches, a ST./2-CH switch to toggle between stereo or double mono, and a 1/4" stereo AUX input to mix in any instrument or sound source. The front panel gives you one PHONES OUT 1/4" jack per channel. A MAIN section features a 5-segment LED output meter, DIRECT IN 1/4" jack and MASTER LEVEL dial. Connections On the back panel you'll find two additional 1/4" outputs per channel. That means up to 12 pairs of headphones can listen to four separate mixes at once. The back panel also features stereo 1/4" and XLR inputs and outputs so you can connect multiple HA4700 units for even greater listening capacity. Meanwhile, ultra low-noise 4580 operational amplifiers deliver outstanding audio quality. Great Sound, Great Value When a recording session calls for everyone's heads and ears to be in the game, the HA4700 is essential. Hearing is believing. Check out the amazing HA4700 at a BEHRINGER dealer near you.
BEHRINGER MICROMON MA400 Ultra-Compact Monitor Headphone Amplifier Ultra-compact monitor headphone amplifier for studio and stage applications Personal ''more me'' mixer - mix a mic plus a monitor signal and hear them via headphones Flexible Mic In and Mic Through connectors plus Ground Lift switch Stereo Monitor input with dedicated Monitor Level control and Mono/Stereo switch High-power headphone output on 1/4'' and 1/8'' jack connectors DC 12 Vadapter included High-quality components and exceptionally rugged construction ensure long life Conceived and designed by BEHRINGER Germany The ultra-compact MICROMON MA400 is the ideal personal monitor mixer for the performer who always asks for "more me." Connections The MA400 features XLR THRU jacks and provides superb noise-free operation. Just connect your mic to the MIC INPUT and send a line from the MIC THRU to your main mixer. You can even use studio-grade condenser mics, as the MA400 will pass +48 V phantom power, if your mixer is so equipped. The PHONES jacks accept both 1/4" and 1/8" headphone and earbud connections, making the MA400 ideal for hardwired IEM (in-ear-monitor) applications, such as singing drummers and keyboardists. The MA400 comes with a 12 V DC power supply and an LED to indicate when it is powered up. Masterful Monitor Mixing Capable of stereo or mono operation, the MA400 is a powerful little mixer that allows you to control two independent sources, a microphone and the monitor feed from your main mixer. Simply adjust the MON LEVEL control to a comfortable setting and then dial in all the "me" you want with the MIC LEVEL control. Small and Superb The MA400 is an ideal solution for the "more me" syndrome. Small enough to fit in your pocket - with a price tag to match - check out the MICROMON MA400 at your BEHRINGER dealer today.