Ramsey 2013 Catalog - page 24

Audio Amps & Accessories
So you're a guitar player, and you live in an apartment... need we say more?! You would love to plug into your 100 watt HiWatt
(my favorite!)
fier and let it crank, but the neighbors probably wouldn't share your enthusiasm! The PGA1 was designed to give you hours of enjoyment playing
your favorite electric guitar while isolating your family, friends, and neighbors from your music and your passion.
Whether you use an acoustic electric, electric, or bass guitar, the PGA1 gives you an adjustable volume output to your favorite headphones. Unlike a
lot of practice amps, the PGA1 has a special bass boost to enhance bass guitar use. One practice amp for all your guitars! If you want to practice to
your favorite music, the PGA1 has a standard style audio input to play to your favorite music! Just plug in your Walkman style CD player, MP3 player,
or even the headphone output on your mixer board and you'll hear both your music source and your guitar in your headphones!
The PGA1 uses a powerful LM386 power amplifier to provide one watt of power to your headphones or even a small speaker! It gets even better...use the PGA1 as a cheap and easy
direct inserter box to match your guitar into an aux input of a stereo receiver amplifier or PA amplifier! It sounds great! A standard ¼” audio input connector is used for your guitar
input, matching your standard guitar cables. A top mounted on/off/volume control adjusts the headphone output level through the full range. The small belt clip pocket size device
runs on a standard 9V battery (not included). An LED indicates power-on and relative battery condition. The attractive compact case measures 4.5”H x 2.7”W x 1.1”D and can be
worn on your belt or carried in your pocket. Available in kit to “learn as you build” or factory assembled and tested to get playing right out of the box!
(Along with a cable, I always
keep one of these in the case of my Black Strat... and the neighbors are happy about that!)
Personal Practice Guitar Amplifier Kit
Personal Practice Guitar Amplifier, Factory Assembled & Tested
Practice your guitar or bass without disturbing others!
Standard ¼” guitar audio plug input!
CD/MP3 player audio headphone input to practice to
your favorite music!
Switchable bass boost!
Great as a DI to your home stereo amplifier!
Standard 3.5mm “Walkman” headphone jack!
Uses a standard 9V battery
Crank It Up Baby...
Crank It!
Personal Practice Guitar Amplifier & DI
Wired & Tested
So, you buy a really good radio or CD player, go to plug in your headphones, and there isn’t a headphone jack! You find a line
level jack, plug in your headphones, and they sound terrible. Sound familiar?
Most good quality gear lacks an earphone output, or if there is one, it is woefully poor quality. We developed this kit to help us listen to
our mixers, reverbs, voice recorders and other audio goodies. We took a pair of LM-386 250 mW audio amplifiers, added volume controls, power
supply and a handy, switchable, high-cut filter. A common ¼” stereo earphone jack is used for the output - assuring compatibility with all stereo head-
phones - and RCA phono jacks accept standard line level input signals. There’s plenty of volume and of course, the “Fi” is quite “Hi”. Available in money saving kit form or fully wired
and tested. Runs on 9 to 15 VDC. Includes an attractive matching case measuring 5”W x 1½”H x 5¼”D.
(Did you know the leading and most well known manufacturer of high-end
table radios recommends the SHA1 to all of their customers?!)
Stereo Headphone Amplifier Kit With Case
Factory Assembled & Tested SHA1 With Case And Power Supply
12VDC/1.0A Regulated Power Supply, 100-240VAC, Green Level-V Efficiency
Make your headphones sound GREAT!
Use with table radios, CD players, tuners, and more
Great as a basic preamp for any line level signal
No Headphone Jack?
NO Problem!
Wired & Tested
Stereo Headphone Amplifier
A few years ago we designed the SHA1 stereo headphone amplifier to provide an audiophile quality headphone signal from a radio or
amplifier that only had a line output. The success was overwhelming! As described in previous catalogs and on our website, the largest
manufacturer of high quality table radios recommended the SHA1 to their customers who wanted to use headphones with their radio.
Well, it's been a couple of years and the need has been proven so we decided not to rest on our laurels with the success of the SHA1. We put our engineers to work, asking them
questions like... what if a band wanted multiple headphones with separate level controls? And what about controls... how about the ability to tailor the audio characteristics to each
user's preferences? What about multiple headphones from just one unit? When they got tired of all our questions they said “OK... you've got it, the new SHA2... the next generation
headphone amplifier kit!”
Standard 3.5mm stereo audio headphone connectors are used for both looping input and dual outputs for simple Walkman style headphones. That was decided when I recently
bought a hundred dollar set of Sony professional headphones that had the 3.5mm plug on them and an included ¼” adapter. I figured it's time to concede to 3.5mm! And before
you ask, we provide a dual RCA to 3.5mm stereo input cable with the SHA2 to match up with your standard unbalanced RCA line out connectors!
From there LM386's and LM1036's are used for audio processing providing nearly 1 watt of output to the normal 4-40 ohm headphones or speaker circuits. The loop-through inputs
are properly isolated to prevent ground loop and hum problems when daisy chained or used in multiples. The dual outputs are great for that other person that just has to listen in
too! We covered it all with the SHA2!
Runs on a built-in standard 9VDC battery and also has a rear power jack for 12-20VDC if you don't want to bother with a battery! If you're looking for a great headphone amplifier to
simply listen to the line output of a radio, CD player, tape player, or receiver, our proven SHA1 is the answer. BUT... if you're looking for multiple outputs, looping inputs, daisy chained
amplifiers, and bass, treble, loudness control, then try the SHA2, the next generation stereo headphone amplifier! Like the SHA1, it includes an attractive matching case measuring
5”W x 1½”H x 5¼”D.
Super Stereo Headphone Amplifier Kit With Case
Factory Assembled & Tested SHA2 With Case And Power Supply
12VDC/1.0A Regulated Power Supply, 100-240VAC, Green Level-V Efficiency
The next generation headphone amp!
Separate volume, treble, bass, balance and loudness
Signal level clipping indicator LED !
Stereo loop-through for multiple feeds with
separate controls
CD quality audio!
The New Generation
Stereo Headphone
Wired & Tested
Super Stereo Headphone Amplifier
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