Last update: 2019/6/12
Brand
TEAC
TEAC
Series
Reference 505 series
Model Name
AP-505-B
AP-505
Product name
Stereo Power Ampifier
Stereo Power Amplifier
Color
Black
Silver
UPC Code
043774000000
043774000000
EAN Code
4907034222483
4907034222476
Product W x H x D / NW
290 x 84.5 x 271 mm / 11.4” x 3.3” x 10.7”
4.4kg / 9.7 lbs.
Package W x H x D / GW
440 x 190 x 340 mm/ 17.3” x 7.5” x 13.4”
5.8kg / 12.8 lbs..
Quantity per master carton
1 pc.
Supplemental to New Product Information (SNPI)
AP-505
Stereo Power Amplifier
An ultra-compact stereo power amplifier, powered by Hypex Ncore technology,
designed to enable Bi-amping, or use in BTL (Bridge Tied Load/Bridged) mode
Features at-a-glance
Hypex Ncore power amplifier module, tuned by TEAC
115W + 115W of max output power, or 220W in BTL mode
3 switchable output modes: Stereo, Bi-Amp and BTL (Bridge Tied Load/Bridged)
Fully balanced circuit design, from input to output
Power supply features large toroidal power transformer and Schottky barrier diodes
Comprehensive protection circuitry (Current surge, Over-voltage, Over-heating)
Patent-pending ‘Pin-point’ feet for easy installation (Japan Patent No.4075477, No.3778108)
Large level meters
XLR Balanced and RCA Unbalanced analog audio inputs
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Last update: 2019/6/12
Supplemental to New Product Information (SNPI)
Product overview
The AP-505 is a versatile stereo power amplifier based around a high-performance, TEAC-tuned,
Hypex Ncore power amplifier module, housed within a compact and elegant case.
Capable of operating in bi-amp and BTL (Bridge Tied Load/Bridged) modes, in addition to
conventional stereo operation, the AP-505 produces a maximum 115W + 115W of output power in
stereo/bi-amp modes and 220W in BTL/bridged mode. At its heart is an Ncore power amplifier
module, made by Hypex of the Netherlands and specially tuned by TEAC’s R&D team, for superlative
sound quality
As for the exterior, lightweight aluminum-alloy panels cover a robust steel chassis. A pair of large
level meters add visual interest when the amplifier is in action, while TEAC's patent-pending ‘Pinpoint’ feet, located at three strategic positions on the underside, add incision to the sound, helping to
create a more detailed and stable stereo image.
Latest Hypex Ncore amplifier technology, tuned by TEAC
The AP-505 employs a high-performance, energy-efficient Hypex Ncore power
amplifier module which produces 115W + 115W in stereo/bi-amp modes or
220W in BTL mode. The module, which has undergone extensive listening tests
before being carefully tuned and tweaked by our engineers, easily drives a wide
range of speakers, delivering anything from a pianissimo to a fortissimo, and
everything in between. In other words, it properly reproduces the dynamics of real
music.
Full-metal, small footprint body for rigidity, stability and elegance
Every external panel – at the front, top and sides - is formed from high-grade aluminium alloy, firmly
attached to the robust steel inner chassis. This method of construction helps reduce the transmission
of mechanical vibration, ensuring that every single element inside the unit is allowed to perform at its
best. Thanks to its convenient A4-sized footprint, the AP-505 easily slots into modern interiors where
space-efficiency is important, such as on a desktop. This is in stark contrast to most conventional biamp/BTL-capable power amplifiers which are usually bulky, full-width units.
Fully-balanced design
By employing a fully-balanced circuit design from the input section to the output stage, the AP-505
keeps the audio signal as unadulterated as possible as it moves through the amplifier, the result
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Supplemental to New Product Information (SNPI)
being extremely low distortion levels and an excellent signal-to-noise ratio (assisted by the effective
elimination of common-mode noise).
Carefully selected components, exclusively designed for hi-fi applications
At the input stage, where sound quality is fundamentally defined, high-quality MUSES8820E dual opamps are employed for both the XLR and RCA inputs. In the power supply section for the input stage,
both the left and right channel rectifying circuits are completely independent from the power
transformer onwards, and employ four, high-capacity, 4700μF capacitors on each channel (8 in
total), achieving clear soundstage separation between channels.
At the XLR input section, a well-designed circuit delivers excellent signal integrity, thanks in part to
the elimination of coupling capacitors that can often lose audio information as a signal travels through
them.
An oversized toroidal power transformer
In the power supply, the AP-505 employs a high capacity toroidal-core transformer, with Schottky
barrier diodes in the rectifying circuit. Unlike conventional diodes, Schottky barrier diodes reduce
rectifier noise, leading to a ‘cleaner’ supply and a more stable delivery of current.
‘Pin-Point’ feet for easy installation
The AP-505 employs TEAC's patent-pending ‘Pin-Point’ feet. These
comprise two separated metal sections in an integrated housing. One
has a spiked top and is attached to the bottom of the chassis, the
other is a basin-shaped base that hangs down from the spiked section,
with a flange-shaped cup to simplify installation. As a result of the
unique design, the ‘Pin-Point’ feet considerably minimize vibrations and
resonance, by virtue of the fact that the unit is supported on just three points, with a very small
surface contact area. This arrangement reduces mid and low frequency muddiness so improving the
soundstage and enhancing fine sonic detail.
* Japan Patent numbers 4075477 and 3778108
Passive-cooling design for silent operation
It makes no sense to design an amplifier that delivers excellent sound to a pair of speakers but which
itself generates distracting operating noise from a cooling fan. From the outset our engineers were
determined to use a circuit and layout that would allow sufficient natural cooling, one that would
allow the creation of a compact but powerful amplifier which didn’t need the help of a cooling fan.
Dual analog level meters signal musical momentum
Analog level meters on the front panel move in response to signal
levels, giving a visually pleasing confirmation that the amplifier is
doing its job. A four-step dimmer (bright, mid, dim off) allows users to
adjust the intensity of display to their taste, while a switchable
sensitivity (±0dB, +20dB, movement off) allows you to enjoy more, less, or even no meter
movement, if preferred.
Naturally, even if the backlight is off and meter movement has been disabled, you are still able to tell
the unit is on... by checking the position of power switch!
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Last update: 2019/6/12
Supplemental to New Product Information (SNPI)
Key Features
Hypex Ncore power amplifier module, tuned by TEAC
115W + 115W of max output p ow er, or 220W in BTL/bridged mode
Can operate in Stereo, Bi-Amp and BTL/bridged modes
Fully balanced circuit design
Carefully selected high-quality components, exclusively designed for Hi-Fi applications
Large toroidal power transformer and Schottky barrier diodes
Comprehensive protection circuits (Surge, Over-voltage, Thermal)
Patent-pending ‘Pin-point’ feet for easy installation (Japan Patent No.4075477, No.3778108)
Large level meters
Passive-cooling for silent operation
A4-sized footprint and full-metal body for rigidity, stability and elegance
XLR Balanced and RCA Unbalanced analog audio inputs (one set of each)
Wide-pitch, screw-type speaker terminals
Auto power-saving
RoHS compliant
Specifications
Amplifier section
Maximum output power
STEREO, BI-AMP mode 115 W + 115 W (4 ohms, 1kHz, JEITA)
90 W + 90 W (8 ohms, 1kHz, JEITA)
BTL mode 220W (8 ohms, 1kHz, JEITA)
Rated output power
STEREO, BI-AMP mode 115 W + 115 W (4 ohms, 1kHz, THD 0.8%)
70 W + 70 W (8 ohms, 1kHz, THD 0.8%)
BTL mode 220W (8 ohms, 1kHz, THD 0.8%)
Total harmonic distortion 0.0015 % (8 ohms, 1kHz, 12.5W, JEITA)
Signal-to-Noise ratio 113 dB (8 ohms, 1kHz, IHF-A)
Frequency response 10 Hz to 50,000 Hz (+0dB, –5dB, 8 ohms, 1kHz, 1 W, JEITA)
Analog input section
LINE IN (Balanced) XLR (2: HOT) x 1 pair
Input sensitivity 1.3V (output 8 ohms, THD 1%)
Input impedance 10k ohms or higher
LINE IN (Unbalance) RCA (gold-plated) x 1 pair
Input sensitivity 0.66V (output 8 ohms, THD 1% )
Input impedance 10k ohms or higher
Output section
Speaker terminals Screw type (gold-plated, compatible with banana-plug and AWG8) x 1 pair
Compatible speaker impedance
STEREO, BI-AMP mode 4 ohms to 16 ohms
BTL mode 8 ohms to 16 ohms
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Last update: 2019/6/12
Supplemental to New Product Information (SNPI)
General
Operating power AC 120 V, 60Hz (US/Canada)
AC 230V, 50Hz (UK/Europe)
Power consumption 106W
Standby power 0.1W or less (at Auto-power saving mode)
Overall dimensions (W x H x D) 290 x 84.5 x 271 mm / 11.4” x 3.3” x 10.7” (incl. protrusion)
Weight 4.4 kg / 9.7 lbs.
Operating temperature range +5°C to +35°C / 41°F to 95°F
Operating humidity range 5% to 85% (no condensation)
Storage temperature range -20°C to +55°C / -4°F to 131°F
Included items
Power code
Cushion for feet x 3pc
Owner’s manual (incl. Warranty)
Rear Panel
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