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INTRODUCTION
The ROLLS HA32 PLAY BOY is an instrument preamp/headphone amp for guitarists
that would like a channel switching amplifier in a belt pack size. The unit is housed in a
black steel chassis and can be powered by two internal 9 volt batteries or external adapter.
It has built in chorus/slap back echo and a speaker simulator so it may be connected
directly to a mixer and retain the sound of a “miked” amp. It also features a LINE IN
control and jack for playing along with program material or for using the HA32 as a stand
alone speaker simulator.
USING THE HA32 PLAY BOY
Plug the guitar into INSTRUMENT IN jack and the headphones into the HEADPHONE
OUT jack. The CHANNEL 1/2 switch switches between the two sets of GAIN and
VOLUME controls, the LED indicates which controls are active. The GAIN adjusts the
amount of channel drive and the VOLUME acts as a master volume for that channel. For
the cleanest sound the VOLUME should be fully clockwise and the GAIN used for
loudness. The PRESENCE control acts as a bass boost or treble boost, the LINE IN is for
mixing another sound with the guitar. It uses a line level and since the control is placed
directly after the jack it can accept very high levels including speaker level with no
distortion.
The analog delay section of the HA32 is it’s most impressive feature, with it you can get
sounds that can’t be matched any other way. The LED indicates when the delay is active.
REGEN is for the amount of feedback in the delay path and can adjust from mellow
chorus to “steely” flanging. The DEPTH is a combination sweep depth and delay time
control with the longest delay being at 10 and the widest sweep being and 1. The SPEED
control is the sweep speed and will adjust from shimmering vibrato to slow mellow
chorus.
GETTING THE SOUND YOU WANT
The HA32 is capable of a great many sounds because if its extremely high gain and wide
range delay section. A great amount of experimentation will reveal the full range capabili-
ties of the HA32 inspite of its small size. Here are some examples.
Sound REGEN DEPTH SPEED
Slap back echo To taste 1 (off) no effect
Chorus 1 (off) 5 - 10 to taste
Flanging 10 6 - 10 to taste
SPEAKER SIMULATION
The electronic speaker simulator in the HA32 will simulate a 12" high efficiency speaker
and gives the Play Boy it’s rich sound. To use the HA32 as a speaker simulator connect
the LINE IN to the source speaker or line out and the LINE OUT on the HA32 to the
mixing console, this will make miking the source unnecessary. The simulator may be
disabled by changing the position of the header jumper inside the case.
POWERING THE HA32
Batteries or AC power may be used. To install batteries remove the two side screws and
tilt out the back of the case showing the two battery holders. Install two alkaline batteries
into the holders making sure the snaps are oriented properly. If AC power is used be sure
to use at least 12 VAC adapter or at least 15 VDC at 200 Ma. or the unit may seem noisy
or work erratically.
SPECIFICATIONS
Input impedance 500K ohm
Output, headphone imp 10 ohm
Maximum input level 1 dBV
Maximum output level 6 dBV
Headroom 97 dB
Max gain 55 dB (PRESENCE flat)
Sweep speed .1 Hz to 8 Hz
Delay time 3 Ms to 40 Ms
Switches 2 high rel. ROLLS actuators
Speaker simulation 12" full range high efficiency
Inputs Instrument and line both 1/4"
Outputs Stereo Headphone and line both 1/4"
Power 12 VAC adapter or 2 nine volt batteries
Power jack “DC” type 2 mm X 5 mm with center gnd.
Dimensions 5" X 6.5" X 1.2" (12.7 X 16.5 X 3 CM)
Weight 2.5 LBS (1.14 KG)