Zesto Audio
If you want something done right… Digital technology has its place, but true audiophiles know that for the truest, purest sound, nothing beats analog. As I returned “home” to the warm, wonderful world of vinyl, I looked for the gear that would deliver the highest fidelity. I wasn’t satisfied. So I built my own.
Vacuum tubes: everything old becomes new again Vacuum tubes faithfully bring warmth and harmonic tonality like nothing else can. As a young man in England, I designed vacuum tube circuits. I worked for DECCA Navigator — at the time Britain’s largest electronics company — as part of a research and development team designing airborne navigational systems for the Royal Air Force. So I have many years of experience designing, creating and bringing to market high-end electronic equipment. The difference here is that no one’s life is at stake.
I’ve loved music all my life – as a musician, record producer and audio engineer. That makes me fussy about sound. That’s a good thing.
Portfolio
Andros 1.2 Phonostage
Specifications:
Inputs per channel
- Separate MM and MC inputs
- MM/MC switch
- MM impedance switch 47K or 15K Ohms
- MM capacitance 200pf
- MC Single Ended RCA with isolated ground or Balanced XLR3F
- MC ground on/off switch
- MC load impedance adjustable 1000, 800, 600, 500, 400, 300, 200, 100, 50, 20 Ohms
- MC Internal step up transformers
- MC High/Low switch with ~ -3dB gain for high output MC cartridges
Outputs per channel
- Impedance 10K ohms
- +6V max output level
Active Components
- Four (4) Gold pin JJ ECC83S/12AX7 vacuum tubes with high quality gold pin ceramic sockets
Power
- Ground binding post
- Power consumption 27W , 0 drain when off
- Voltage 110/120V AC 60Hz
- Optional factory installed 220V or 230/240V AC 50/60Hz
- Standard 3 pin IEC power connector
- ON/OFF power switch conveniently located on the front side
- Two internal high quality linear regulated power supplies, 250V and 12V
Detailed Specifications
- Gain MM input 47dB
- Gain MC input 67dB
- Noise – 75dBu below max output level
- Frequency response complies with the original RIAA curve within +or- 0.5 dB
- RIAA curve is achieved using a passive filter
- 1% metal film resisters throughout
- Polypropylene capacitors throughout the audio path
Other Features
- “Made in the USA” using US and imported parts
- Each unit is built by hand
- 50 hour factory burn in on all circuits and vacuum tubes
- Dimensions 17″ W X 12″ D X 5″ H
- Weight 20 lbs.
- 16 gauge zinc plated steel enclosure
- Two year limited warranty
- Six months warranty on Vacuum Tubes
Andros 1.2 Phonostage
Specifications:
Inputs per channel
- Separate MM and MC inputs
- MM/MC switch
- MM impedance switch 47K or 15K Ohms
- MM capacitance 200pf
- MC Single Ended RCA with isolated ground or Balanced XLR3F
- MC ground on/off switch
- MC load impedance adjustable 1000, 800, 600, 500, 400, 300, 200, 100, 50, 20 Ohms
- MC Internal step up transformers
- MC High/Low switch with ~ -3dB gain for high output MC cartridges
Outputs per channel
- Impedance 10K ohms
- +6V max output level
Active Components
- Four (4) Gold pin JJ ECC83S/12AX7 vacuum tubes with high quality gold pin ceramic sockets
Power
- Ground binding post
- Power consumption 27W , 0 drain when off
- Voltage 110/120V AC 60Hz
- Optional factory installed 220V or 230/240V AC 50/60Hz
- Standard 3 pin IEC power connector
- ON/OFF power switch conveniently located on the front side
- Two internal high quality linear regulated power supplies, 250V and 12V
Detailed Specifications
- Gain MM input 47dB
- Gain MC input 67dB
- Noise – 75dBu below max output level
- Frequency response complies with the original RIAA curve within +or- 0.5 dB
- RIAA curve is achieved using a passive filter
- 1% metal film resisters throughout
- Polypropylene capacitors throughout the audio path
Other Features
- “Made in the USA” using US and imported parts
- Each unit is built by hand
- 50 hour factory burn in on all circuits and vacuum tubes
- Dimensions 17″ W X 12″ D X 5″ H
- Weight 20 lbs.
- 16 gauge zinc plated steel enclosure
- Two year limited warranty
- Six months warranty on Vacuum Tubes
Key Features
- Allasso in Greek means to change or transform one thing to another.
- It’s very versatile! Will accommodate the widest range of cartridges with 40 adjustments in Mono and 40 adjustments in Stereo.
- It’s flexible to allow you to control the 4 step up ratios/gain settings, each having 10 load positions.
- Designed with the highest quality MC transformers. They are quiet, with extra shielding and large enough with the multiple windings to handle even your high output cartridges.
- It’s easy to use as all the adjustments are on the front, nothing is hidden inside.
- All adjustments can be done on the “fly” without clicks or pops.
- No math skills are required; it’s just you and your ears.
- Enough adjustments to tailor it specifically to your cartridge or your next one.
- Works with any standard MM input on any phonostage.
- Designed to reduce “Hum” with 2 ground lift switches and 2 ground binding posts.
- The Mono switch is specifically designed to reduce “Hum” in your Mono cartridge.
- A unique feature of the Mono switch is it takes a single input and sends to both outputs.
- It’s quiet, with extensive grounding in the circuit design and enclosure.
- RCA connectors are high quality, Gold plated, recessed with an isolated ground.
- Recessed RCA connectors are durable and will hold up to the typical Audiophile who loves to change their configuration.
- Elegantly designed 18 gauge steel enclosure to help isolate the electronic “chatter” from nearby equipment.
- Easy to read large type on back panel.
- Each unit is hand built “Made in the USA”.
Andros Allasso Step Up Transformer
Specifications:
- Frequency response -3dB at 0.4Hz to 100 KHz
- Phase deviation 1° typical at 20Hz
- Transformer noise 2 dB @ 20 Ω, 1.8 dB @ 12 Ω
- Hum rejection 125 dB @ 60 Hz
- Voltage gain 12dB, 16dB, 18dB and 22dB
- Step up ratios 1:4, 1:6, 1:8 and 1:12
- MC load 40 positions in Mono, 40 positions in Stereo
- Recommended output load 47KΩ @ 200pF (MM input)
- Inputs Balanced and Single Ended MC
- Outputs Single Ended
- Grounds Independent input ground-lift switches
- Grounds Two ground binding posts
- Mono Takes one input and sends it to both outputs
- Dimensions 4”H X 6”W X 8”L (101.6mm X 152.4mm X 203.2mm)
- Weight 5lb (2.27Kg)
- Shipping weight 8lb (3.63Kg)
- Box dimensions 7”H X 9”W X 13”L (177.9mm X 228.6g X 330.2g)
Andros Allasso Step Up Transformer
Specifications:
- Frequency response -3dB at 0.4Hz to 100 KHz
- Phase deviation 1° typical at 20Hz
- Transformer noise 2 dB @ 20 Ω, 1.8 dB @ 12 Ω
- Hum rejection 125 dB @ 60 Hz
- Voltage gain 12dB, 16dB, 18dB and 22dB
- Step up ratios 1:4, 1:6, 1:8 and 1:12
- MC load 40 positions in Mono, 40 positions in Stereo
- Recommended output load 47KΩ @ 200pF (MM input)
- Inputs Balanced and Single Ended MC
- Outputs Single Ended
- Grounds Independent input ground-lift switches
- Grounds Two ground binding posts
- Mono Takes one input and sends it to both outputs
- Dimensions 4”H X 6”W X 8”L (101.6mm X 152.4mm X 203.2mm)
- Weight 5lb (2.27Kg)
- Shipping weight 8lb (3.63Kg)
- Box dimensions 7”H X 9”W X 13”L (177.9mm X 228.6g X 330.2g)
Key Features
- Allasso in Greek means to change or transform one thing to another.
- It’s very versatile! Will accommodate the widest range of cartridges with 40 adjustments in Mono and 40 adjustments in Stereo.
- It’s flexible to allow you to control the 4 step up ratios/gain settings, each having 10 load positions.
- Designed with the highest quality MC transformers. They are quiet, with extra shielding and large enough with the multiple windings to handle even your high output cartridges.
- It’s easy to use as all the adjustments are on the front, nothing is hidden inside.
- All adjustments can be done on the “fly” without clicks or pops.
- No math skills are required; it’s just you and your ears.
- Enough adjustments to tailor it specifically to your cartridge or your next one.
- Works with any standard MM input on any phonostage.
- Designed to reduce “Hum” with 2 ground lift switches and 2 ground binding posts.
- The Mono switch is specifically designed to reduce “Hum” in your Mono cartridge.
- A unique feature of the Mono switch is it takes a single input and sends to both outputs.
- It’s quiet, with extensive grounding in the circuit design and enclosure.
- RCA connectors are high quality, Gold plated, recessed with an isolated ground.
- Recessed RCA connectors are durable and will hold up to the typical Audiophile who loves to change their configuration.
- Elegantly designed 18 gauge steel enclosure to help isolate the electronic “chatter” from nearby equipment.
- Easy to read large type on back panel.
- Each unit is hand built “Made in the USA”.
Andros Deluxe Phonostage
Specifications:
Inputs
- Two inputs, one MM and one MC
- MM Single Ended RCA input
- MM impedance 47K Ohms
- MM capacitance 220pf
- MC transformer Balanced XLR input
- MC transformer Single Ended RCA input. Only one MC input can be used at a time
- 2 independent MC ground lift switches
- All input connectors are gold plated
- 10 position MC load impedance:1000, 800, 700, 600, 500, 400, 300, 200, 100, 50 Ohms
- 2 Superior quality MC Internal step up transformers
- 2 position gain switch for High & Low output cartridges
- One ground binding post
Outputs per channel
- High quality output transformers driven by dedicated 12DW7/ECC832 output tubes
- True floating ground, transformer Balanced XLR gold plated outputs
- Single Ended gold plated RCA output, with isolated ground
- Impedance 150 Ohms
- +7V max output level
Active Components
- Two (2) Gold pin JJ ECC83S/12AX7 vacuum tubes with high quality gold pin ceramic sockets
- Two (2) Gold pin JJ ECC832/12DW7 vacuum tubes with high quality gold pin ceramic sockets
Power
- 2 internal linear regulated power supplies, 1 high voltage 250V and 1 low voltage 12V
- Power on red LED
- ON/OFF switch on left side of unit
- Power consumption 28 Watts
- Standard 3 pin 15A IEC power connector
- Voltage 110/120V AC 60Hz
- Optional factory installed 220V or 230/240V AC 50/60Hz
Detailed Specifications
- 2 position Gain switch
- Gain MC input 63 dB and 68 dB
- Gain MM input 45 dB and 50 dB
- Noise – 80 dBv below max output level
- Frequency response complies with the original RIAA curve within +or- 0.5 dB
- RIAA curve is achieved using a passive filter
- No negative feedback
- 1% metal film resisters throughout
- Polypropylene capacitors throughout the audio path
- All analog tube circuitry with no solid state devices in the signal path
Other Features
- Controls on the rear
- “Made in the USA” using US and imported parts
- Each unit is built by hand
- 50 hour factory burn in on all circuits and vacuum tubes
- Dimensions main chassis 17″ W X 12″ D X 5″ H (43cm X 30.4cm X 12.7cm)
- Weight 21 lbs (9.53 Kg)
- Shipping weight 24 lbs (10.89 Kg), box 21″ X 21″ X 11″ (53cm X 53cm X 28cm)
- 16 gauge zinc plated steel enclosure
- Two year limited warranty
- Six months warranty on Vacuum Tubes
Andros Deluxe Phonostage
Specifications:
Inputs
- Two inputs, one MM and one MC
- MM Single Ended RCA input
- MM impedance 47K Ohms
- MM capacitance 220pf
- MC transformer Balanced XLR input
- MC transformer Single Ended RCA input. Only one MC input can be used at a time
- 2 independent MC ground lift switches
- All input connectors are gold plated
- 10 position MC load impedance:1000, 800, 700, 600, 500, 400, 300, 200, 100, 50 Ohms
- 2 Superior quality MC Internal step up transformers
- 2 position gain switch for High & Low output cartridges
- One ground binding post
Outputs per channel
- High quality output transformers driven by dedicated 12DW7/ECC832 output tubes
- True floating ground, transformer Balanced XLR gold plated outputs
- Single Ended gold plated RCA output, with isolated ground
- Impedance 150 Ohms
- +7V max output level
Active Components
- Two (2) Gold pin JJ ECC83S/12AX7 vacuum tubes with high quality gold pin ceramic sockets
- Two (2) Gold pin JJ ECC832/12DW7 vacuum tubes with high quality gold pin ceramic sockets
Power
- 2 internal linear regulated power supplies, 1 high voltage 250V and 1 low voltage 12V
- Power on red LED
- ON/OFF switch on left side of unit
- Power consumption 28 Watts
- Standard 3 pin 15A IEC power connector
- Voltage 110/120V AC 60Hz
- Optional factory installed 220V or 230/240V AC 50/60Hz
Detailed Specifications
- 2 position Gain switch
- Gain MC input 63 dB and 68 dB
- Gain MM input 45 dB and 50 dB
- Noise – 80 dBv below max output level
- Frequency response complies with the original RIAA curve within +or- 0.5 dB
- RIAA curve is achieved using a passive filter
- No negative feedback
- 1% metal film resisters throughout
- Polypropylene capacitors throughout the audio path
- All analog tube circuitry with no solid state devices in the signal path
Other Features
- Controls on the rear
- “Made in the USA” using US and imported parts
- Each unit is built by hand
- 50 hour factory burn in on all circuits and vacuum tubes
- Dimensions main chassis 17″ W X 12″ D X 5″ H (43cm X 30.4cm X 12.7cm)
- Weight 21 lbs (9.53 Kg)
- Shipping weight 24 lbs (10.89 Kg), box 21″ X 21″ X 11″ (53cm X 53cm X 28cm)
- 16 gauge zinc plated steel enclosure
- Two year limited warranty
- Six months warranty on Vacuum Tubes
Power
- Dual chassis
- Power supply with 3 meter DC umbilical cable incorporating special RFI suppression
- Locking bayonet connector rated for higher voltage and higher current
- 3 internal linear regulated power supplies, 1 high voltage 250V and 2 low voltage 12V
- Power supply dual color LED, yellow for standby and red for ON
- Main unit push ON/OFF front power switch illuminates a red LED on Channel A or B
- Power supply standby switch on the front
- Power supply standby power rating 7 Watts
- Power consumption 52 Watts
- Standard 3 pin 15A IEC power connector on power supply
- Voltage 110/120V AC 60Hz
- Optional factory installed 220V or 230/240V AC 50/60Hz
Detailed Specifications
- 3 position Gain switch
- MC input 60dB, 65dB and 70dB or MM input 40dB, 45dB and 50dB
- Noise – 90 dBu below max output level
- Frequency response complies with the original RIAA curve within +or- 0.5 dB
- RIAA curve is achieved using a passive filter
- 1% metal film resisters throughout
- Polypropylene capacitors throughout the audio path
- All analog tube circuitry with no solid state devices in the signal path
Other Features
- Controls on the front
- “Made in the USA” using US and imported parts
- Each unit is built by hand
- 50 hour factory burn in on all circuits and vacuum tubes
- Dimensions main chassis 17″ W X 15″ D X 5.5″ H, Power Supply 17”W x 8”D x 5”H
- Weight: Main unit 25 lbs (11.34 Kg), Power supply 17 lbs (7.7 Kg)
- Shipping weight 53 lbs (24 Kg), box 20″ X 20″ X 20″
- 16 gauge zinc plated steel enclosure
- Two year limited warranty
- Six months warranty on Vacuum Tubes
Andros Téssera Phonostage
Specifications:
Inputs per channel
- Two completely independent dual mono channels, A and B with LED indicator
- Accommodates 4 tonearms, 2 per channel
- Separate MM and MC inputs per channel
- Each channel has independent controls and all selections are saved when you switch between channels
- Selection switch for MC and 2 position MM 47K and MM 68K
- MM impedance switch 47K or 68K Ohms
- MM capacitance 220pf
- MC transformer Balanced gold plated XLR input
- MM and MC Single Ended RCA input, gold plated with isolated ground
- 4 MC ground on/off switch
- 12 position MC load impedance:1000, 800, 700, 500, 400, 350, 300, 250, 200, 150, 100, 50 Ohms
- 4 Superior quality MC Internal step up transformers
- 3 position MC gain switch for High, Medium & Low output cartridges
- Two ground binding posts
Outputs per channel
- High quality output transformers driven by dedicated 12AU7/ECC82 output tubes
- True floating ground, transformer Balanced XLR gold plated outputs
- Single Ended gold plated RCA output, with isolated ground
- Impedance 150 Ohms
- +8V max output level
Active Components
- Four (4) Gold pin JJ ECC83S/12AX7 vacuum tubes with high quality gold pin ceramic sockets
- Two (2) Gold pin JJ ECC82/12AU7 vacuum tubes with high quality gold pin ceramic sockets
Andros Téssera Phonostage
Specifications:
Inputs per channel
- Two completely independent dual mono channels, A and B with LED indicator
- Accommodates 4 tonearms, 2 per channel
- Separate MM and MC inputs per channel
- Each channel has independent controls and all selections are saved when you switch between channels
- Selection switch for MC and 2 position MM 47K and MM 68K
- MM impedance switch 47K or 68K Ohms
- MM capacitance 220pf
- MC transformer Balanced gold plated XLR input
- MM and MC Single Ended RCA input, gold plated with isolated ground
- 4 MC ground on/off switch
- 12 position MC load impedance:1000, 800, 700, 500, 400, 350, 300, 250, 200, 150, 100, 50 Ohms
- 4 Superior quality MC Internal step up transformers
- 3 position MC gain switch for High, Medium & Low output cartridges
- Two ground binding posts
Outputs per channel
- High quality output transformers driven by dedicated 12AU7/ECC82 output tubes
- True floating ground, transformer Balanced XLR gold plated outputs
- Single Ended gold plated RCA output, with isolated ground
- Impedance 150 Ohms
- +8V max output level
Active Components
- Four (4) Gold pin JJ ECC83S/12AX7 vacuum tubes with high quality gold pin ceramic sockets
- Two (2) Gold pin JJ ECC82/12AU7 vacuum tubes with high quality gold pin ceramic sockets
Power
- Dual chassis
- Power supply with 3 meter DC umbilical cable incorporating special RFI suppression
- Locking bayonet connector rated for higher voltage and higher current
- 3 internal linear regulated power supplies, 1 high voltage 250V and 2 low voltage 12V
- Power supply dual color LED, yellow for standby and red for ON
- Main unit push ON/OFF front power switch illuminates a red LED on Channel A or B
- Power supply standby switch on the front
- Power supply standby power rating 7 Watts
- Power consumption 52 Watts
- Standard 3 pin 15A IEC power connector on power supply
- Voltage 110/120V AC 60Hz
- Optional factory installed 220V or 230/240V AC 50/60Hz
Detailed Specifications
- 3 position Gain switch
- MC input 60dB, 65dB and 70dB or MM input 40dB, 45dB and 50dB
- Noise – 90 dBu below max output level
- Frequency response complies with the original RIAA curve within +or- 0.5 dB
- RIAA curve is achieved using a passive filter
- 1% metal film resisters throughout
- Polypropylene capacitors throughout the audio path
- All analog tube circuitry with no solid state devices in the signal path
Other Features
- Controls on the front
- “Made in the USA” using US and imported parts
- Each unit is built by hand
- 50 hour factory burn in on all circuits and vacuum tubes
- Dimensions main chassis 17″ W X 15″ D X 5.5″ H, Power Supply 17”W x 8”D x 5”H
- Weight: Main unit 25 lbs (11.34 Kg), Power supply 17 lbs (7.7 Kg)
- Shipping weight 53 lbs (24 Kg), box 20″ X 20″ X 20″
- 16 gauge zinc plated steel enclosure
- Two year limited warranty
- Six months warranty on Vacuum Tubes
Leto Ultra Preamplifier
Specifications:
Inputs
- 6 Inputs with remote or manual controls
- 3 sets of true transformer Balanced inputs (pin 2 hot) with an impedance of 10K Ohms
- 3 sets of Single Ended inputs with an impedance of 100K Ohms
- Maximum input level of 7 Volts RMS
Outputs
- 4 Line outputs
- 2 sets of true transformer Balanced outputs (pin 2 hot) with an impedance 150 Ohms
- 2 sets of Single Ended outputs with an impedance 150 Ohms
- Maximum peak output level of 10 Volts RMS
- 2 Independent ground lift switches on the left and right outputs
Vacuum Tubes
- Two (2) Gold pin JJ ECC82/12AU7
- Two (2) Gold pin JJ ECC832/12DW7
- High quality gold pin ceramic sockets
Presence
- 6 position remote or manual Presence control
- Presence 0,-1, -2, -3, -4, -5 (low pass shelf)
- 0 = Not engaged
- -1 = 13Khz and above
- -2 = 8Khz and above
- -3 = 4Khz and above
- -4 = 2Khz and above
- -5 = 1KHz and above
- When the unit is turned on, or you switch inputs, the presence control will go to “0”
- Presence control defaults to 0 which disengages from the circuit
Detailed Specifications
- Remote control Input, Volume, Mute, Mono, Presence and Gain settings
- All adjustments can be operated manually (just in case the remote is misplaced)
- Frequency response 10Hz to 40Khz ~ 2dB
- Distortion ~ 0.013% with 1V RMS input
- Signal to noise ~ 100dB below operating level
- Non inverting output polarity
- Cross talk >90dB
- 1% metal film resistors throughout
- Polypropylene capacitors throughout the audio path
Power
- Power consumption 28W, 0 drain when off
- Voltage 110/120V AC 60Hz
- Optional factory installed 220V or 230/240V AC 50/60Hz
- Standard 3 pin IEC power connector
- ON/OFF power switch conveniently located on the side panel
- Two internal high quality linear regulated power supplies, 250V and 12V
Gain
- 3 remote controlled Gain settings of 9dB, 6dB and 3dB
- Manual Gain switch on rear panel
- Gain setting is saved on each input
Other Features
- Each unit is hand made in the USA
- 50 hour factory burn in on all circuits and vacuum tubes
- Dimensions 17”w X 12”d X 5”h
- Weight 28 lbs.
- Shipping weight 30 lbs.(12.70 kg)
- Shipping box: 21”w x 21”d x 11”h (53.34cm x 53.34cm x 27.94cm)
- 16 gauge zinc plated steel enclosure
- Two year limited warranty
- Six months warranty on Vacuum Tubes
- Recessed RCA and XLR connectors are Gold plated with an isolated ground.
- All switches and knobs are easily accessible, nothing hidden inside to adjust.
Leto Ultra Preamplifier
Specifications:
Inputs
- 6 Inputs with remote or manual controls
- 3 sets of true transformer Balanced inputs (pin 2 hot) with an impedance of 10K Ohms
- 3 sets of Single Ended inputs with an impedance of 100K Ohms
- Maximum input level of 7 Volts RMS
Outputs
- 4 Line outputs
- 2 sets of true transformer Balanced outputs (pin 2 hot) with an impedance 150 Ohms
- 2 sets of Single Ended outputs with an impedance 150 Ohms
- Maximum peak output level of 10 Volts RMS
- 2 Independent ground lift switches on the left and right outputs
Vacuum Tubes
- Two (2) Gold pin JJ ECC82/12AU7
- Two (2) Gold pin JJ ECC832/12DW7
- High quality gold pin ceramic sockets
Presence
- 6 position remote or manual Presence control
- Presence 0,-1, -2, -3, -4, -5 (low pass shelf)
- 0 = Not engaged
- -1 = 13Khz and above
- -2 = 8Khz and above
- -3 = 4Khz and above
- -4 = 2Khz and above
- -5 = 1KHz and above
- When the unit is turned on, or you switch inputs, the presence control will go to “0”
- Presence control defaults to 0 which disengages from the circuit
Detailed Specifications
- Remote control Input, Volume, Mute, Mono, Presence and Gain settings
- All adjustments can be operated manually (just in case the remote is misplaced)
- Frequency response 10Hz to 40Khz ~ 2dB
- Distortion ~ 0.013% with 1V RMS input
- Signal to noise ~ 100dB below operating level
- Non inverting output polarity
- Cross talk >90dB
- 1% metal film resistors throughout
- Polypropylene capacitors throughout the audio path
Power
- Power consumption 28W, 0 drain when off
- Voltage 110/120V AC 60Hz
- Optional factory installed 220V or 230/240V AC 50/60Hz
- Standard 3 pin IEC power connector
- ON/OFF power switch conveniently located on the side panel
- Two internal high quality linear regulated power supplies, 250V and 12V
Gain
- 3 remote controlled Gain settings of 9dB, 6dB and 3dB
- Manual Gain switch on rear panel
- Gain setting is saved on each input
Other Features
- Each unit is hand made in the USA
- 50 hour factory burn in on all circuits and vacuum tubes
- Dimensions 17”w X 12”d X 5”h
- Weight 28 lbs.
- Shipping weight 30 lbs.(12.70 kg)
- Shipping box: 21”w x 21”d x 11”h (53.34cm x 53.34cm x 27.94cm)
- 16 gauge zinc plated steel enclosure
- Two year limited warranty
- Six months warranty on Vacuum Tubes
- Recessed RCA and XLR connectors are Gold plated with an isolated ground.
- All switches and knobs are easily accessible, nothing hidden inside to adjust.
Power
- Custom Toroidal power transformer with global mains
- Choke based power supply design
- 120 Volts AC mains
- Optional factory installed 220V, 230V, 240V 50/60Hz
- Power consumption at rated output 300 Watts
- On/Off switch conveniently located on front panel
- 3 pin IEC power connector with fuse
Detailed Specifications
- Dual Mono
- Auto bias
- No negative feedback
- Frequency response 20Hz to 50Khz ~ 2db
- Total Harmonic Distortion ~ 0.22% at 1W output into 8 Ohms
- Gain of 23dB
- Noise level > 0.2 mV RMS into 8 Ohms with input shorted
- 1% metal film resisters throughout
- Polypropylene capacitors throughout the audio path
Other Features
- Each unit is made by hand
- 50 hour factory burn in on all circuits and vacuum tubes
- Dimensions 17″ W X 20″ D X 10 ” H
- Weight 66 lbs. (30Kg)
- 16 and 14 gauge Zinc plated steel enclosure
Bia 120 Class A Stereo Power Amp
Specifications:
Output
- Pure Class A
- 60 Watts per channel
- 4, 8 and 16 Ohm output taps
- 8, 5 and 4 Amp Slow blow fuses for outputs
- Eight 5 way binding post
- Non inverting output polarity
- Push-Pull and Ultra-Linear design
Inputs
- RCA single ended inputs Left and Right with an impedance of 100K Ohms
- Transformer floating XLR balanced inputs Left and Right (pin 2 hot)
with an impedance of 12K Ohms - Independent ground lift switches on left and right balanced inputs
- 2 Volts RMS input to reach rated output
Active Components
- Matched quad set of four (4) KT88’s vacuum tubes
- Four (4) Gold pin ECC82s (12AU7) vacuum tubes
- High quality gold pin ceramic sockets
Bia 120 Class A Stereo Power Amp
Specifications:
Output
- Pure Class A
- 60 Watts per channel
- 4, 8 and 16 Ohm output taps
- 8, 5 and 4 Amp Slow blow fuses for outputs
- Eight 5 way binding post
- Non inverting output polarity
- Push-Pull and Ultra-Linear design
Inputs
- RCA single ended inputs Left and Right with an impedance of 100K Ohms
- Transformer floating XLR balanced inputs Left and Right (pin 2 hot)
with an impedance of 12K Ohms - Independent ground lift switches on left and right balanced inputs
- 2 Volts RMS input to reach rated output
Active Components
- Matched quad set of four (4) KT88’s vacuum tubes
- Four (4) Gold pin ECC82s (12AU7) vacuum tubes
- High quality gold pin ceramic sockets
Power
- Custom Toroidal power transformer with global mains
- Choke based power supply design
- 120 Volts AC mains
- Optional factory installed 220V, 230V, 240V 50/60Hz
- Power consumption at rated output 300 Watts
- On/Off switch conveniently located on front panel
- 3 pin IEC power connector with fuse
Detailed Specifications
- Dual Mono
- Auto bias
- No negative feedback
- Frequency response 20Hz to 50Khz ~ 2db
- Total Harmonic Distortion ~ 0.22% at 1W output into 8 Ohms
- Gain of 23dB
- Noise level > 0.2 mV RMS into 8 Ohms with input shorted
- 1% metal film resisters throughout
- Polypropylene capacitors throughout the audio path
Other Features
- Each unit is made by hand
- 50 hour factory burn in on all circuits and vacuum tubes
- Dimensions 17″ W X 20″ D X 10 ” H
- Weight 66 lbs. (30Kg)
- 16 and 14 gauge Zinc plated steel enclosure
EROS 300 Class A Monaural Power Amp
Specifications:
Output
- Pure Class A
- 150 Watts per amp
- 4 and 8 Ohm output taps
- 8 and 5 Amp Slow blow fuses for outputs
- Three 5 way binding post
- One SpeakOn connector
- Non inverting output phase polarity
- Push-Pull and Ultra-Linear design
Inputs
- Transformer floating XLR input
- Balanced inputs with pin 2 hot, impedance of 12K Ohms
- Single Ended input, impedance of 100K Ohms
- XLR ground lift switch on balanced input
- 1.8 Volts RMS input to reach rated output
Active Components
- Matched sextet, set of six (6) KT88’s vacuum tubes
- Two (2) Gold pin ECC82s (12AU7) vacuum tubes
- High quality gold pin ceramic sockets
Power
- Custom Toroidal power transformer with global mains
- Choke based power supply design
- 120 Volts AC mains
- Optional factory installed 220V, 230V, 240V 50/60Hz
- Power consumption at rated output 360 Watts
- Power consumption at idol 348 Watts
- On/Off switch conveniently located on front panel
- 3 pin IEC power connector with fuse
Detailed Specifications
- Monaural
- Auto bias
- No negative feedback
- Frequency response 20Hz to 50Khz ~ 2db
- Total Harmonic Distortion ~ 0.43% at 1W output into 8 Ohms
- Gain of 26dB
- Noise level > 5 mV RMS into 8 Ohms with input shorted
- 1% metal film resisters throughout
- Polypropylene capacitors throughout the audio path
Other Features
- Each unit is made by hand
- 50 hour factory burn in on all circuits and vacuum tubes
- Dimensions 17″ W X 20″ D X 10 ” H
- Weight 64 lbs. (29.03 kg)
- Shipping weight 80 lbs. (36.28 kg)
- 14 and 16 gauge Zinc plated steel enclosure
- Two year limited warranty
- Six month warranty on vacuum tubes
EROS 300 Class A Monaural Power Amp
Specifications:
Output
- Pure Class A
- 150 Watts per amp
- 4 and 8 Ohm output taps
- 8 and 5 Amp Slow blow fuses for outputs
- Three 5 way binding post
- One SpeakOn connector
- Non inverting output phase polarity
- Push-Pull and Ultra-Linear design
Inputs
- Transformer floating XLR input
- Balanced inputs with pin 2 hot, impedance of 12K Ohms
- Single Ended input, impedance of 100K Ohms
- XLR ground lift switch on balanced input
- 1.8 Volts RMS input to reach rated output
Active Components
- Matched sextet, set of six (6) KT88’s vacuum tubes
- Two (2) Gold pin ECC82s (12AU7) vacuum tubes
- High quality gold pin ceramic sockets
Power
- Custom Toroidal power transformer with global mains
- Choke based power supply design
- 120 Volts AC mains
- Optional factory installed 220V, 230V, 240V 50/60Hz
- Power consumption at rated output 360 Watts
- Power consumption at idol 348 Watts
- On/Off switch conveniently located on front panel
- 3 pin IEC power connector with fuse
Detailed Specifications
- Monaural
- Auto bias
- No negative feedback
- Frequency response 20Hz to 50Khz ~ 2db
- Total Harmonic Distortion ~ 0.43% at 1W output into 8 Ohms
- Gain of 26dB
- Noise level > 5 mV RMS into 8 Ohms with input shorted
- 1% metal film resisters throughout
- Polypropylene capacitors throughout the audio path
Other Features
- Each unit is made by hand
- 50 hour factory burn in on all circuits and vacuum tubes
- Dimensions 17″ W X 20″ D X 10 ” H
- Weight 64 lbs. (29.03 kg)
- Shipping weight 80 lbs. (36.28 kg)
- 14 and 16 gauge Zinc plated steel enclosure
- Two year limited warranty
- Six month warranty on vacuum tubes