Installation, Operation/Connections, Rackmounting

GENERAL j

INFORMATION

INPUTS: Tuner, Video, CD, Phono/Aux

1, Aux 2, Tape Monitor

OUTPUTS: Out 1, Out 2, Record Out, Headphone

CONTROLS: input Selector, Volume, Tape Monitor , Tone Control In, Balance, Bass, Treble, Output Off, Power, Phono MM/MC

INDICATORS: Mute/Standby, Power

CONVENIENCE OUTLETS: 1 Unswitched, 4 Switched (Polarized) (Convenience Outlets are not included on 200-240 VAC units)

PHYSICAL DIMENSIONS:

17” (W) x 7-5/8” (D) x l-3/4” (H) (excluding feet); Faceplate 17” or 19” (W).

43.2cm (W) x 19.4cm (D) x 4.5cm (H) (excluding feet); Faceplate 43.2cm or 483cm (W).

POWER CONSUMPTION (Excluding Convenience Outlets): 9 watts Max.

AC LINE VOLTAGE OPERATING RANGE: (exceeding lower limit will activate muting circuit;

exceeding			upper limit		will	result	in	overheating and/or component damage)
100	-	120 Volt		50/80	Hz Models: 85 - 130 volts
200	-	240	Volt	50/80	Hz	Models:	170	- 280 volts

INSTALLATION

RACKMOUNTING

VENTllATlON/

PLACEMENT

LINE VOLTAGE

The 915		Preamplifier	is	supplied in either a 17” Black Version,			or a	19” Silver Version.		The	19
model has rackmounting				holes provided	for installation in	equipment		racks.	The holes	are	on
standard		EIA spacings.
The	915	produces	very	little heat during operation, and therefore requires no special consider-
ations	for	ventilation. The preamplifier			should be located	at	least	several	inches away		from

components that contain large power transformers (such as power amplifiers), due to the

possibility		of audible	hum or	buzz from magnetic	radiation.
The	915	Preamplifier	is configurable for either 100 -		120 volt, or 200 -	240	volt operation. This
is	accomplished by		changing	internal jumpers on	the printed circuit	board.	The procedure is

detailed in the section “CHANGING LINE VOLTAGE RATING”. Make sure that the unit is configured for your local AC line voltage before attempted use. The configuration is labelled directly above the power cord connector.

OPERATION/CONNECTIONS

POWER CORD CONNECTION

INITIAL POWER- UP/MUTING SYSTEM

Units	wired for200-240	VACare	supplied	without power cords. Local agents will supply cords with
male	connectors appropriate to		the local	standard.

Units wired for 100-120 VAC are supplied with a detachable AC power cord. The female

connector plugs into the receptacle		provided on the rear panel. This power			cord	is	a standard
IEC Type 320, 3-wire, 18 gaugeassembly.			Should	replacement ever be necessary,		be		sure to
replace it with an identical cord.
Never remove the grounding pin from		the male end		of the cord. In applications	where		a	grounded
wall	outlet is not available, a ground	adaptor should be employed, with the ground tab or wire of
the	adaptor connected to a suitable	earth	ground.

For units wired for 200-240 VAC, the front panel Power Switch controls the power to the

Preamplifier’s circuitry. If desired, this switch may be left “on” at all times to allow circuits to be thermally stabilized for maximum fidelity as soon as the system is used.

-5-

0915P, 915 specifications

The Hafler 915 and 0915P amplifiers are remarkable products from Hafler, a company known for its high-quality audio equipment. These amplifiers are engineered to deliver precise sound reproduction, making them ideal for both home audio setups and professional applications.

One of the standout features of the Hafler 915 is its robust power output. With a capability of delivering 200 watts per channel into an 8-ohm load, it ensures that even the most demanding speakers can be driven effortlessly. The 0915P model, a variant of the Hafler 915, offers similar power specifications with additional features appealing to both audiophiles and professionals in the audio field.

The amplifiers utilize Hafler's proprietary technologies to provide impressive dynamic range and low distortion levels. The innovative circuitry employed in these models enhances signal integrity, which translates to a more accurate representation of the original audio source. Users can expect high fidelity sound that captures the nuances of music and dialogue with clarity.

Another important characteristic of the Hafler 915 and 0915P is their versatility in connectivity options. The amplifiers come equipped with multiple input configurations, including balanced and unbalanced connections. This flexibility allows them to be integrated seamlessly into various audio systems, whether for studio monitoring or home theater use.

The design of the Hafler 915 and 0915P amplifiers reflects both aesthetic appeal and functional efficiency. Featuring a sleek chassis and a user-friendly interface, these models are not only well-built but also visually pleasing. The robust heat dissipation mechanisms ensure long-term performance and reliability, making them suitable for extended use in demanding environments.

In summary, the Hafler 915 and 0915P amplifiers embody a blend of power, precision, and versatility. Their high-quality sound reproduction capabilities, coupled with innovative technologies and solid construction, make them excellent choices for anyone seeking to elevate their audio experience. Whether in a professional studio or a home audio setup, these amplifiers stand out as top contenders in the realm of audio amplification.