Nady HPA-4 4 Channel Headphone Amp

With extensive switching functions, extreme efficiency, and unmatched sound quality, the ultra-versatile HPA-4 is a universal 4-channel multi-purpose headphone amplifier/line distribution system — perfect for the most demanding professional stage and studio applications.

• Four totally independent stereo high-power headphone amplifier/line distribution channels in a convenient single rack package — an ingenious, easy-to-operate unit allowing a maximum variety of both useful monitoring and stereo line level signal distribution options.
• Input Source Select switches and Phone and Line 1/4" TRS stereo outputs on each channel, and 4 independent stereo input sections (each with servo-balanced L & R 1/4"TRS jacks) enable independent selection of any of the 4 stereo signals for each headphone amp/line distribution channel. This allows selecting from up to 4 completely independent monitor signals for each set of headphones connected to the HPA-4 for optimum monitor-ing flexibility or 4 separate choices for each channel's Line Output for enabling many useful, simple audio switching/routing solutions.
• Separate Volume control for each channel adjusts the level to both Phone and parallel Line outputs
• Easily expandable for optimum versatility in any application — up to four HPA-4's can be daisy chained for additional fully selectable headphone/line distribution requirements
• No-compromise circuit design, strin-gently selected tight-tolerance components and low-noise, extremely linear or amps for ref-erence-quality, transparent audio with maximum headroom even at extremely high head-phone volume levels
• High-quality, rugged construction for maximum reliability
• Shielded internal dual regulated power supply with ~115V(60Hz)/~230V(50Hz) select switch and fused IEC power cord connector
• Dimensions and weight: 1.75"X 19"X 8.5"(44.5X482.6X217mm), 6.93lbs (3.15Kg)

Accu Cable Akai AKG Alesis Alvarez American Audio American DJ Ampeg Anchor Audio Antari Applause Aria Armstrong Artley Arturia Audio Technica Auralex Avanti Axis AXL B.C. Rich Bach Bornemark Boss Breedlove Casio Celemony Celestion Cerwin Vega Chauvet Conn Crate Crown D'Aquisto Daisy Rock DBX Dean Denon Digidesign Digitech DW EAW Eden Edirol Elation Electro Harmonix Electro Voice Emerson EMG ESP Event Fender Acoustics Fender Amplifiers Fender Audio Fender Basses Fender Custom Shop Fender Guitars Focusrite Fostex Furman Gallien Krueger Gator Gemini Genz Benz Gibraltar Gig Skinz Gon Bops Hammond Hartke HHB Hiwatt Holton Hosa Hughes And Kettner Ibanez Icons of Rock ImageLine Jasmine Jay Turser JBL Johnson Ketron Korg KRK Latin Percussion LeBlanc Lexicon Line 6 Loar Ludwig Luna Guitars M-Audio Mackie Marshall Martin Martin Band Microboards Milab Mindprint Monster Montana Moog Motu MusicXPC Musser MXL Nady Nord Notion Numark Odyssey Ortofon Oscar Schmidt Ovation Pacific Paiste Palatino Paris Swing Parker Pearl Pearl Percussion Peavey Pioneer Presonus Propellerhead Prosoniq QSC Randall Rane Recording King Road Ready Roland Rosendahl Sabian Samick Samson Schecter Selmer Sennheiser Seymour Duncan Shure Silvertone Soundcraft Squier Stanton Steinberg Takamine Tama Tannoy Tapco Tascam Taylor The Loar Toca Vestax Virsyn Vito Vocopro Vox Washburn Yairi Yamaha Drums Yamaha Guitars Yamaha Keyboards Yanagisawa Zildjian Zoom